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Polymerized ferric sulfate is an inorganic polymer coagulant with superior performance. The liquid is brown, and the solid is a light yellow amorphous powdery solid. It is easily soluble in water. The 10% (mass) aqueous solution is a reddish brown transparent solution. Solid products are highly hygroscopic. Polyferric sulfate is widely used in the purification treatment of drinking water, industrial water, various industrial wastewater, urban sewage, sludge dehydration, etc.
Chemical name: polyferric sulfate, solid polyferric sulfate (referred to as solid polyferric or SPFS)
Molecular formula: [Fe2(OH)n(SO4)3-n/2]m (where n<2, m=f(n))
Technical specification code: BK-113-06
Hazardous ingredients: iron sulfate (polymerization)
Iron sulfate content: 20-21%
CAS No. : 1327-41-9
Main ingredients: pure
Appearance and properties: yellow or reddish-brown amorphous powder or granular solid.
pH(10g/L aqueous solution): 2-3
Melting point (℃): 190 (253kPa)
Boiling point (℃): no information
Relative density (water=1): 2.44
Relative vapor density (air=1): no information
Saturated vapor pressure (kPa): 0.13 (100°C)
Solubility: easily soluble in water, alcohol, chloroform, carbon tetrachloride, slightly soluble in benzene. [1]
New, high-quality, high-efficiency iron salt inorganic polymer flocculant, mainly used for excellent water purification effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, and no transfer of iron ions to the water, non-toxic, non-toxic Harmless, safe and reliable, it has remarkable effects in removing turbidity, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, COD, BOD and heavy metal ions in water, etc. It is also used for industrial wastewater treatment, such as printing and dyeing wastewater, and is also widely used in foundry, papermaking, medicine, leather, etc.
Compared with other inorganic flocculants, polyferric sulfate has the following characteristics:
1. New, high-quality, high-efficiency iron salt inorganic polymer flocculant;
2. Excellent coagulation performance, dense alum flowers, fast settling speed;
3. Excellent water purification effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, and no water phase transfer of iron ions, non-toxic,
Harmless, safe and reliable;
4. Remarkable effects in removing turbidity, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, COD, BOD and heavy metal ions in water;
5. The wide range of PH value of the water body is 4-11, and the optimal PH value range is 6-9. After purification, the pH value and total alkalinity of the raw water change little.
Less corrosive to processing equipment;
6. It has a remarkable effect on the purification of micro-pollution, algae-containing, low-temperature and low-turbidity raw water, especially for high-turbidity raw water;
7. The dosage is less, the cost is low, and the treatment cost can be saved by 20%-50%.
Preparation
The preparation of polyferric sulfate mainly includes direct oxidation method and catalytic oxidation method. The preparation of most PFS adopts the direct oxidation method. The process route of this method is relatively simple. It can reduce equipment investment and production links and reduce equipment costs when used in industrial production. However, this production process must rely on oxidants, such as: H2O2, KClO3, HNO3 and other inorganic oxidants. The catalytic oxidation method generally selects a catalyst and uses oxygen or air to oxidize to prepare polyferric sulfate.
Due to the different properties of raw water, according to different situations, on-site debugging or beaker tests should be carried out to obtain the best conditions of use and the best dosage to achieve the best treatment effect.
1. Before use, put this product into the alum-dissolving pool at a certain concentration (10-30%), inject tap water and stir to make it fully hydrolyzed, and let it stand until it becomes
Reddish-brown liquid, then diluted with water to the required concentration and added for coagulation. The water plant can also be made into 2-5% direct dosing, and the industrial wastewater treatment can be directly added
Into 5-10% dosing.
2. The amount of dosage can be determined according to the nature of the raw water through production debugging or beaker experiments, depending on the amount of alum flowers formed, and the water plant can use the original
The dosage of other medicines is used as a reference. Under the same conditions, the dosage of this product is roughly equivalent to that of solid polyaluminum chloride, which is the dosage of solid aluminum sulfate.
1/3-1/4. If the original liquid product is used, it can be determined according to the calculation of the corresponding drug concentration. Roughly according to the weight ratio of 1:3.
3. When in use, pump the above-mentioned prepared medicinal solution into the metering tank, and coagulate with the raw water by metering the medicinal solution.
4. Under normal circumstances, it is used on the day of preparation on the same day. Tap water is required for dispensing, and a little sediment is a normal phenomenon.
5. Pay attention to the hydraulic conditions and the formation of alum flowers in the three stages of the coagulation process.
(1) Coagulation stage: it is the process in which the liquid medicine is injected into the coagulation tank and the raw water coagulates rapidly to form fine alum flowers in a very short time.
To be more turbid, it requires the water flow to generate intense turbulence. Rapid (250-300 rpm) stirring should be used in the beaker experiment
10-30S, generally no more than 2min.
(2) Flocculation stage: it is the process of the growth and thickening of alum flowers, which requires an appropriate degree of turbulence and sufficient residence time (10-15min).
In the later stage, it can be observed that a large number of alum flowers gather and sink slowly, forming a clear layer on the surface. In the beaker experiment, stir at 150 rpm for about
6 minutes, then stirred at 60 rpm for about 4 minutes until it was suspended.
(3) Settling stage: it is the floc settling process carried out in the settling tank, which requires slow water flow. In order to improve efficiency, inclined tubes are generally used
(Plate type) settling tank (it is best to use air flotation method to separate flocs), a large number of thick alum flowers are blocked by the wall of the inclined tube (plate) and deposited
At the bottom of the pool, the upper layer of water is clarified water, and the remaining alum flowers with small particle size and low density continue to collide with each other while falling slowly.
Large, and the residual turbidity basically remains unchanged in the later stage. For the beaker experiment, it is advisable to stir slowly at 20-30 rpm for 5 minutes, then settle for 10 minutes, and measure the residual turbidity.
6. Strengthening filtration is mainly to rationally select the filter layer structure and filter aid to improve the removal rate of the filter, which is an important measure to improve water quality.
7. This product is used in the treatment of environmental protection and industrial wastewater. The method of use is roughly the same as that of water plants. It is suitable for high chroma, high COD and BOD
Raw water treatment, supplemented by additives, has a very good effect.
8. For enterprises using chemical coagulation, the original equipment does not need to be greatly modified, and this product can be used only by adding an alum-dissolving pool.
9. This product must be stored in a dry, moisture-proof, and heat-proof place (< 80°C, do not damage the packaging, and the product can be stored for a long time).
10. This product must be dissolved before it can be used, and the dissolution equipment and dosing facilities should be made of corrosion-resistant materials.
Overview of folding hazards
Health Hazard: This product is irritating to the skin and mucous membranes. Inhalation of high concentrations can cause bronchitis, and some individuals can cause bronchial asthma. When a large amount is taken by mistake, it can cause oral erosion, gastritis, gastric bleeding and mucosal necrosis. Chronic effects: long-term exposure can cause headache, dizziness, loss of appetite, cough, nasal congestion, chest pain and other symptoms.
Explosion hazard: This product is non-flammable.
folding first aid
Skin contact: Immediately take off contaminated clothing, rinse with plenty of running water for at least 15 minutes. Seek medical attention.
Eye contact: Immediately lift the eyelids and rinse thoroughly with plenty of running water or normal saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly leave the scene to fresh air. Keep airway open. If breathing is difficult, give oxygen. If not breathing, give artificial respiration immediately. seek medical attention
Ingestion: Rinse mouth with water, drink milk or egg white. Seek medical attention.
folding fire protection
Fire fighting methods: Firefighters must wear full-body acid and alkali resistant firefighting clothing.
Extinguishing media: dry sand.
Folding leakage emergency treatment
Emergency treatment: isolate the leaked contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face masks) and anti-acid and alkali overalls. Do not come into direct contact with spilled material.
Small amount of leakage: avoid raising dust, collect it in a closed container with a clean shovel.
Large spills: Cover with plastic sheeting, canvas. Remove under expert guidance.
Operation precautions: airtight operation, local exhaust. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety protective glasses, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials. Avoid generating dust. Avoid contact with alkalis and alcohols. Take particular care to avoid contact with water. When handling, load and unload lightly to prevent damage to packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may be harmful residues.
Precautions for storage: Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. The relative humidity is kept below 75%. The packaging must be sealed and kept away from moisture. It should be stored separately from flammable (combustible) materials, alkalis, alcohols, etc., and should not be stored together. It should not be stored for a long time to avoid deterioration. Storage areas should be equipped with suitable materials to contain spills.
folding control protection
Occupational Exposure Limits
China MAC (mg/m3): No standard established
TLVTN: ACGIH 2mg/m3
TLVWN: Not Standardized
Engineering control: airtight operation, local exhaust. Provide safety showers and eyewash facilities.
Respiratory system protection: When you may be exposed to its dust, you should wear a self-priming filter dust mask. In emergency rescue or evacuation, it is recommended to wear an air respirator.
Eye Protection: Wear chemical safety goggles.
Body Protection: Wear rubber acid and alkali resistant clothing.
Hand protection: Wear rubber acid and alkali resistant gloves.
ENVIRONMENTAL HAZARDS: Usually slightly hazardous to bodies of water, do not allow undiluted product to contact ground water, water courses or sewage systems.
Other protection: Smoking, eating and drinking are prohibited at the work site. After work, take a shower. Store poison-contaminated clothes separately and wash them for later use. Practice good hygiene.
Folding stability and reactivity
Stability: relatively stable
Incompatible substances: flammable or combustible substances, alkalis, water, alcohols.
Conditions to Avoid: Moist air.
Polymerization Hazard: None Hazardous
Fold Toxicology Information
Acute toxicity:
LD50: 3730 mg/kg (rat oral)
LC50: QYSEM-0810
folded for disposal
Disposal disposal method: Dispose according to the requirements of relevant national and local regulations. Or contact vendor or manufacturer to determine disposal method.
Collapse Shipping Information
Dangerous Goods Number: 81045
UN number: 1726
Packaging mark: rainproof, moistureproof
Packing category: O52
Packing method: 25kg, 50kg, plastic woven bag lined with polyethylene bag
When transporting by rail, it should be assembled in strict accordance with the dangerous goods assembly table in the "Rules for the Transport of Dangerous Goods" issued by the Ministry of Railways. The packaging should be complete and the loading should be secure at the time of shipment. During transportation, it is necessary to ensure that the container does not leak, collapse, fall or be damaged. It is strictly forbidden to mix and transport with flammables or combustibles, alkalis, alcohols, food chemicals, etc. The transport vehicle should be equipped with leakage emergency treatment equipment during transportation. During transportation, it should be protected from sun exposure, rain and high temperature.
Iron sesquisulfate - Names and Identifiers
Name：Iron sesquisulfate
Synonyms：Iron sesquisulfate
Polymer Ferric Sulphate
CAS：35139-28-7
Molecular Formula：FeH4O5S
Molar Mass：171.93
Polymerized ferric sulfate is an inorganic polymer coagulant with superior performance. The liquid is brown, and the solid is a light yellow amorphous powdery solid. It is easily soluble in water. The 10% (mass) aqueous solution is a reddish brown transparent solution. Solid products are highly hygroscopic. Polyferric sulfate is widely used in the purification treatment of drinking water, industrial water, various industrial wastewater, urban sewage, sludge dehydration, etc.
Chemical name: polyferric sulfate, solid polyferric sulfate (referred to as solid polyferric or SPFS)
Molecular formula: [Fe2(OH)n(SO4)3-n/2]m (where n<2, m=f(n))
Technical specification code: BK-113-06
Hazardous ingredients: iron sulfate (polymerization)
Iron sulfate content: 20-21%
CAS No. : 1327-41-9
Main ingredients: pure
Appearance and properties: yellow or reddish-brown amorphous powder or granular solid.
pH(10g/L aqueous solution): 2-3
Melting point (℃): 190 (253kPa)
Boiling point (℃): no information
Relative density (water=1): 2.44
Relative vapor density (air=1): no information
Saturated vapor pressure (kPa): 0.13 (100°C)
Solubility: easily soluble in water, alcohol, chloroform, carbon tetrachloride, slightly soluble in benzene. [1]
New, high-quality, high-efficiency iron salt inorganic polymer flocculant, mainly used for excellent water purification effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, and no transfer of iron ions to the water, non-toxic, non-toxic Harmless, safe and reliable, it has remarkable effects in removing turbidity, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, COD, BOD and heavy metal ions in water, etc. It is also used for industrial wastewater treatment, such as printing and dyeing wastewater, and is also widely used in foundry, papermaking, medicine, leather, etc.
Compared with other inorganic flocculants, polyferric sulfate has the following characteristics:
1. New, high-quality, high-efficiency iron salt inorganic polymer flocculant;
2. Excellent coagulation performance, dense alum flowers, fast settling speed;
3. Excellent water purification effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, and no water phase transfer of iron ions, non-toxic,
Harmless, safe and reliable;
4. Remarkable effects in removing turbidity, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, COD, BOD and heavy metal ions in water;
5. The wide range of PH value of the water body is 4-11, and the optimal PH value range is 6-9. After purification, the pH value and total alkalinity of the raw water change little.
Less corrosive to processing equipment;
6. It has a remarkable effect on the purification of micro-pollution, algae-containing, low-temperature and low-turbidity raw water, especially for high-turbidity raw water;
7. The dosage is less, the cost is low, and the treatment cost can be saved by 20%-50%.
Preparation
The preparation of polyferric sulfate mainly includes direct oxidation method and catalytic oxidation method. The preparation of most PFS adopts the direct oxidation method. The process route of this method is relatively simple. It can reduce equipment investment and production links and reduce equipment costs when used in industrial production. However, this production process must rely on oxidants, such as: H2O2, KClO3, HNO3 and other inorganic oxidants. The catalytic oxidation method generally selects a catalyst and uses oxygen or air to oxidize to prepare polyferric sulfate.
Due to the different properties of raw water, according to different situations, on-site debugging or beaker tests should be carried out to obtain the best conditions of use and the best dosage to achieve the best treatment effect.
1. Before use, put this product into the alum-dissolving pool at a certain concentration (10-30%), inject tap water and stir to make it fully hydrolyzed, and let it stand until it becomes
Reddish-brown liquid, then diluted with water to the required concentration and added for coagulation. The water plant can also be made into 2-5% direct dosing, and the industrial wastewater treatment can be directly added
Into 5-10% dosing.
2. The amount of dosage can be determined according to the nature of the raw water through production debugging or beaker experiments, depending on the amount of alum flowers formed, and the water plant can use the original
The dosage of other medicines is used as a reference. Under the same conditions, the dosage of this product is roughly equivalent to that of solid polyaluminum chloride, which is the dosage of solid aluminum sulfate.
1/3-1/4. If the original liquid product is used, it can be determined according to the calculation of the corresponding drug concentration. Roughly according to the weight ratio of 1:3.
3. When in use, pump the above-mentioned prepared medicinal solution into the metering tank, and coagulate with the raw water by metering the medicinal solution.
4. Under normal circumstances, it is used on the day of preparation on the same day. Tap water is required for dispensing, and a little sediment is a normal phenomenon.
5. Pay attention to the hydraulic conditions and the formation of alum flowers in the three stages of the coagulation process.
(1) Coagulation stage: it is the process in which the liquid medicine is injected into the coagulation tank and the raw water coagulates rapidly to form fine alum flowers in a very short time.
To be more turbid, it requires the water flow to generate intense turbulence. Rapid (250-300 rpm) stirring should be used in the beaker experiment
10-30S, generally no more than 2min.
(2) Flocculation stage: it is the process of the growth and thickening of alum flowers, which requires an appropriate degree of turbulence and sufficient residence time (10-15min).
In the later stage, it can be observed that a large number of alum flowers gather and sink slowly, forming a clear layer on the surface. In the beaker experiment, stir at 150 rpm for about
6 minutes, then stirred at 60 rpm for about 4 minutes until it was suspended.
(3) Settling stage: it is the floc settling process carried out in the settling tank, which requires slow water flow. In order to improve efficiency, inclined tubes are generally used
(Plate type) settling tank (it is best to use air flotation method to separate flocs), a large number of thick alum flowers are blocked by the wall of the inclined tube (plate) and deposited
At the bottom of the pool, the upper layer of water is clarified water, and the remaining alum flowers with small particle size and low density continue to collide with each other while falling slowly.
Large, and the residual turbidity basically remains unchanged in the later stage. For the beaker experiment, it is advisable to stir slowly at 20-30 rpm for 5 minutes, then settle for 10 minutes, and measure the residual turbidity.
6. Strengthening filtration is mainly to rationally select the filter layer structure and filter aid to improve the removal rate of the filter, which is an important measure to improve water quality.
7. This product is used in the treatment of environmental protection and industrial wastewater. The method of use is roughly the same as that of water plants. It is suitable for high chroma, high COD and BOD
Raw water treatment, supplemented by additives, has a very good effect.
8. For enterprises using chemical coagulation, the original equipment does not need to be greatly modified, and this product can be used only by adding an alum-dissolving pool.
9. This product must be stored in a dry, moisture-proof, and heat-proof place (< 80°C, do not damage the packaging, and the product can be stored for a long time).
10. This product must be dissolved before it can be used, and the dissolution equipment and dosing facilities should be made of corrosion-resistant materials.
Overview of folding hazards
Health Hazard: This product is irritating to the skin and mucous membranes. Inhalation of high concentrations can cause bronchitis, and some individuals can cause bronchial asthma. When a large amount is taken by mistake, it can cause oral erosion, gastritis, gastric bleeding and mucosal necrosis. Chronic effects: long-term exposure can cause headache, dizziness, loss of appetite, cough, nasal congestion, chest pain and other symptoms.
Explosion hazard: This product is non-flammable.
folding first aid
Skin contact: Immediately take off contaminated clothing, rinse with plenty of running water for at least 15 minutes. Seek medical attention.
Eye contact: Immediately lift the eyelids and rinse thoroughly with plenty of running water or normal saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly leave the scene to fresh air. Keep airway open. If breathing is difficult, give oxygen. If not breathing, give artificial respiration immediately. seek medical attention
Ingestion: Rinse mouth with water, drink milk or egg white. Seek medical attention.
folding fire protection
Fire fighting methods: Firefighters must wear full-body acid and alkali resistant firefighting clothing.
Extinguishing media: dry sand.
Folding leakage emergency treatment
Emergency treatment: isolate the leaked contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face masks) and anti-acid and alkali overalls. Do not come into direct contact with spilled material.
Small amount of leakage: avoid raising dust, collect it in a closed container with a clean shovel.
Large spills: Cover with plastic sheeting, canvas. Remove under expert guidance.
Operation precautions: airtight operation, local exhaust. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety protective glasses, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials. Avoid generating dust. Avoid contact with alkalis and alcohols. Take particular care to avoid contact with water. When handling, load and unload lightly to prevent damage to packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may be harmful residues.
Precautions for storage: Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. The relative humidity is kept below 75%. The packaging must be sealed and kept away from moisture. It should be stored separately from flammable (combustible) materials, alkalis, alcohols, etc., and should not be stored together. It should not be stored for a long time to avoid deterioration. Storage areas should be equipped with suitable materials to contain spills.
folding control protection
Occupational Exposure Limits
China MAC (mg/m3): No standard established
TLVTN: ACGIH 2mg/m3
TLVWN: Not Standardized
Engineering control: airtight operation, local exhaust. Provide safety showers and eyewash facilities.
Respiratory system protection: When you may be exposed to its dust, you should wear a self-priming filter dust mask. In emergency rescue or evacuation, it is recommended to wear an air respirator.
Eye Protection: Wear chemical safety goggles.
Body Protection: Wear rubber acid and alkali resistant clothing.
Hand protection: Wear rubber acid and alkali resistant gloves.
ENVIRONMENTAL HAZARDS: Usually slightly hazardous to bodies of water, do not allow undiluted product to contact ground water, water courses or sewage systems.
Other protection: Smoking, eating and drinking are prohibited at the work site. After work, take a shower. Store poison-contaminated clothes separately and wash them for later use. Practice good hygiene.
Folding stability and reactivity
Stability: relatively stable
Incompatible substances: flammable or combustible substances, alkalis, water, alcohols.
Conditions to Avoid: Moist air.
Polymerization Hazard: None Hazardous
Fold Toxicology Information
Acute toxicity:
LD50: 3730 mg/kg (rat oral)
LC50: QYSEM-0810
folded for disposal
Disposal disposal method: Dispose according to the requirements of relevant national and local regulations. Or contact vendor or manufacturer to determine disposal method.
Collapse Shipping Information
Dangerous Goods Number: 81045
UN number: 1726
Packaging mark: rainproof, moistureproof
Packing category: O52
Packing method: 25kg, 50kg, plastic woven bag lined with polyethylene bag
When transporting by rail, it should be assembled in strict accordance with the dangerous goods assembly table in the "Rules for the Transport of Dangerous Goods" issued by the Ministry of Railways. The packaging should be complete and the loading should be secure at the time of shipment. During transportation, it is necessary to ensure that the container does not leak, collapse, fall or be damaged. It is strictly forbidden to mix and transport with flammables or combustibles, alkalis, alcohols, food chemicals, etc. The transport vehicle should be equipped with leakage emergency treatment equipment during transportation. During transportation, it should be protected from sun exposure, rain and high temperature.
Iron sesquisulfate - Names and Identifiers
Name：Iron sesquisulfate
Synonyms：Iron sesquisulfate
Polymer Ferric Sulphate
CAS：35139-28-7
Molecular Formula：FeH4O5S
Molar Mass：171.93
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