About Potassium Bisulphate: Properties & Uses
Also known as Potassium hydrogen sulfate or Potassium Acid Sulphate, it is made by treating potassium sulfate with sulfuric acid. The Potassium salt of bisulphate anion, Potassium Bisulphate is used chiefly in the conversion of tartrates to bitartrates and as a food preservatives, analytical reagent etc.

It should be kept in a tightly closed container and stored in a cool, dry, ventilated and locked store-room area, well-protected against physical damage and isolated from any source of heat or ignition. The containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

While handling, do not breathe dust or vapor. Avoid contact with skin, eyes, or clothing as well as inhalation and ingestion since its absorption is harmful. Wash hands thoroughly after handling.

    Appearance              : White Powder
    Molecular Formula      : HKO4S
    Molecular Weight       : 136.17
    Odor                       : Odorless
    Solubility                  : Soluble in Water; insoluble in ethanol, acetone.


  • As an ingredient in making cream of tartar and as a flux.
  • As a compound in the conversion of tartrates to bitartrates in wine.
  • As a disintegrating agent in Analytical Chemistry.
  • As a Food Preservative to prevent the growth of mold, yeast and bacteria in foods.
  • As an additive for homemade wine.
  • As an ingredient in the manufacture of juice drinks and concentrate helping to increase the shelf life of the products.
  • As a common ingredient in wine and beer making and in the tanning of leathers.
  • As a ingredient in the bleaching of textiles and straw.
Potassium Bisulphate Manufacturers
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Potassium Bisulphate Suppliers
A leading Potassium Bisulphate Suppliers, Vishnupriya Chemicals supplies high purity and quality. With a wide variety of uses, it has been finely tuned by us to meet the high expectations of our customers to ensure consistent results.

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Material Safety Data Sheet

Potassium Bisulfate


Section 1: Chemical Product and Company Identification


Chemical Name: Potassium Bisulfate


CAS#: 7646-93-7

RTECS: TS7200000

TSCA: TSCA 8(b) inventory: Potassium bisulfate

CI#: Not available.

Synonym: Acid Potassium Sulfate; Monopotassium sulfate;

Potassium acid sulfate; Potassium sulfate; Sal enixum;

Sulfuric acid, monopotassium salt; Potassium bisulphate;

Potassium Hydrogen Sulfate

Chemical Formula: KHSO4



Contact Information:


Vishnupriya Chemicals Pvt. Ltd.


Office No. 7, Meridian apartments

Lake Hills Road, New MLA Quarters

Basheerbagh, Hyderabad 63,  A.P

Tel :  040 - 23225550

Fax : 040 23223177

Email :

Website :


Section 2: Composition and Information on Ingredients






% by Weight

Potassium Bisulfate




Toxicological Data on Ingredients:  Potassium bisulfate: ORAL (LD50): Acute: 2340 mg/kg [Rat].


Section 3: Hazards Identification


Potential Acute Health Effects:

Very hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion. Hazardous in case of skin contact (corrosive), of eye contact (corrosive), of inhalation. The amount of tissue damage depends on length of contact. Eye contact can result in corneal damage or blindness. Skin contact can produce inflammation and blistering. Inhalation of dust will produce irritation to gastro-intestinal or respiratory tract, characterized by burning, sneezing and coughing. Severe over-exposure can produce lung damage, choking, unconsciousness or death.

Inflammation of the eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering.


Potential Chronic Health Effects:





Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can produce local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or lung damage.


Section 4: First Aid Measures


Eye Contact:

Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention immediately.


Skin Contact:

In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.


Serious Skin Contact:

Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical attention.



If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately.


Serious Inhalation:

Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or corrosive. Seek immediate medical attention.



Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention if symptoms appear.


Serious Ingestion: Not available.


Section 5: Fire and Explosion Data


Flammability of the Product: Non-flammable.


Auto-Ignition Temperature: Not applicable.


Flash Points: Not applicable.


Flammable Limits: Not applicable.


Products of Combustion: Not available.


Fire Hazards in Presence of Various Substances: Not applicable.


Explosion Hazards in Presence of Various Substances:

Risks of explosion of the product in presence of mechanical impact: Not available.

Risks of explosion of the product in presence of static discharge: Not available.


Fire Fighting Media and Instructions: Not applicable.


Special Remarks on Fire Hazards: Not available.


Special Remarks on Explosion Hazards: Not available.


Section 6: Accidental Release Measures


Small Spill: Use appropriate tools to put the spilled solid in a convenient waste disposal container.


Large Spill:

Corrosive solid.

Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to reduce vapors. Prevent entry into sewers, basements or confined areas; dike if needed. Call for assistance on disposal.


Section 7: Handling and Storage



Keep container dry. Do not ingest. Do not breathe dust. Never add water to this product. In case of insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as oxidizing agents, alkalis.


Storage: Keep container tightly closed. Keep container in a cool, well-ventilated area. Hygroscopic


Section 8: Exposure Controls/Personal Protection


Engineering Controls:

Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit.


Personal Protection:

Splash goggles. Synthetic apron. Vapor and dust respirator. Be sure to use an approved/certified respirator or equivalent. Gloves.


Personal Protection in Case of a Large Spill:

Splash goggles. Full suit. Vapor and dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product.


Exposure Limits: Not available.


Section 9: Physical and Chemical Properties


Physical state and appearance: Solid.


Odor: Odorless.


Taste: Not available.


Molecular Weight: 136.17 g/mole


Color: White.


pH (1% soln/water): Not available.


Boiling Point: Not available.


Melting Point:

197C (386.6F)

Decomposition Temperature: 210 deg. C.


Critical Temperature: Not available.


Specific Gravity: 2.24 (Water = 1)


Vapor Pressure: Not applicable.


Vapor Density: Not available.


Volatility: Not available.


Odor Threshold: Not available.


Water/Oil Dist. Coeff.: Not available.


Ionicity (in Water): Not available.


Dispersion Properties: See solubility in water.



Soluble in cold water.

Solubility in water: 56 g/100 g water


Section 10: Stability and Reactivity Data


Stability: The product is stable.


Instability Temperature: Not available.


Conditions of Instability: Incompatible materials, moisture/moist air


Incompatibility with various substances: Reactive with oxidizing agents, alkalis.


Corrosivity: Non-corrosive in presence of glass.


Special Remarks on Reactivity: Not available.


Special Remarks on Corrosivity: Not available.


Polymerization: Will not occur.


Section 11: Toxicological Information


Routes of Entry: Inhalation. Ingestion.


Toxicity to Animals: Acute oral toxicity (LD50): 2340 mg/kg [Rat].


Chronic Effects on Humans: Not available.


Other Toxic Effects on Humans:

Very hazardous in case of skin contact (irritant), of ingestion.

Hazardous in case of skin contact (corrosive), of eye contact (corrosive), of inhalation (lung corrosive).


Special Remarks on Toxicity to Animals: Not available.


Special Remarks on Chronic Effects on Humans: Not available.


Special Remarks on other Toxic Effects on Humans:

Acute Potential Health Effects:

Skin: Corrosive. Causes severe skin irritation and burns, especially if the skin is wet or moist. Symptoms can

include redness, pain, and severe tissue burns.

Eyes: Corrosive. Contact causes severe irritation and burns. Symptoms can include blurred vision, redness pain

and severe tissue burns.

Inhalation: Corrosive. Inhalation produces damaging effects on the mucous membranes and upper respiratory

tract. Symptoms can include soreness in nasal passages, irritation of the throat, coughing, sneezing, labored

breathing. May cause delayed lung edema.

Ingestion: Corrosive. Swallowing can cause sore throat, swelling of the throat, convulsions, severe burns of the

mouth, throat, and stomach, vomiting, diarrhea


Section 12: Ecological Information


Ecotoxicity: Not available.


BOD5 and COD: Not available.


Products of Biodegradation:

Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.


Toxicity of the Products of Biodegradation: The product itself and its products of degradation are not toxic.


Special Remarks on the Products of Biodegradation: Not available.


Section 13: Disposal Considerations


Waste Disposal:

Waste must be disposed of in accordance with federal, state and local environmental control regulations.





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