Potassium Oxalate (Monohydrate)

Synonyms : Oxalic acid dipotassium salt; ethanedioic acid



Molecular Formula


Molecular Weight



Transparent Colorless Crystals





98.0% MIN

*Also available Pure, Pharma synthesis, LR, AR and ACS Grade

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Material Safety Data Sheet

Potassium Oxalate (Monohydrate)


Section 1: Chemical Product and Company Identification


Chemical Name: Oxalic acid, potassium salt, monohydrate


CAS#: 6487-48-5

RTECS: RO2885000

TSCA: TSCA 8(b) inventory: No products were found.

CI#: Not available.

Synonym: Ethanoic acid, dipotassium salt, monohydrate;

Oxalic acid, dipotassium salt, monohydrate

Chemical Formula: (COOK)2.H2O



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 Oxalate (Monohydrate)




Toxicological Data on Ingredients:  Potassium oxalate monhydrate LD50: Not available. LC50: Not available.


Section 3: Hazards Identification


Potential Acute Health Effects:

Hazardous in case of skin contact (irritant, permeator), of eye contact (irritant), of ingestion, of inhalation. Slightly hazardous in case of skin contact (corrosive), of eye contact (corrosive).


Potential Chronic Health Effects:





The substance may be toxic to blood, kidneys, the nervous system, brain, eyes, central nervous system (CNS).

Repeated or prolonged exposure to the substance can produce target organs 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 immediate medical attention.



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


Serious Inhalation: Not available.



Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight clothing such as a collar, tie, belt or waistband.


Serious Ingestion: Not available.


Section 5: Fire and Explosion Data


Flammability of the Product: May be combustible at high temperature.


Auto-Ignition Temperature: Not available.


Flash Points: Not available.


Flammable Limits: Not available.


Products of Combustion: These products are carbon oxides (CO, CO2). Some metallic oxides.


Fire Hazards in Presence of Various Substances:

Slightly flammable to flammable in presence of heat.

Non-flammable in presence of shocks.


Explosion Hazards in Presence of Various Substances:

Slightly explosive in presence of open flames and sparks.

Non-explosive in presence of shocks.


Fire Fighting Media and Instructions:

SMALL FIRE: Use DRY chemical powder.

LARGE FIRE: Use water spray, fog or foam. Do not use water jet.


Special Remarks on Fire Hazards: As with most organic solids, fire is possible at elevated temperatures


Special Remarks on Explosion Hazards:

Fine dust dispersed in air in sufficient concentrations, and in the presences of an ignition source is a potential dust explosion hazard.


Section 6: Accidental Release Measures


Small Spill:

Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and dispose of according to local and regional authority requirements.


Large Spill:

Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and allow to evacuate through the sanitary system.


Section 7: Handling and Storage



Keep container dry. Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. 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, acids, alkalis.


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


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. Lab coat. 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. 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. (Crystalline powder.)


Odor: Odorless.


Taste: Not available.


Molecular Weight: 184.2 g/mole


Color: White.


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


Boiling Point: Not available.


Melting Point: Not available.


Critical Temperature: Not available.


Specific Gravity: 2.13 (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.

Soubility in water: 30 g in 100 g of water


Section 10: Stability and Reactivity Data


Stability: The product is stable.


Instability Temperature: Not available.


Conditions of Instability: Excess heat, dust generation, incompatible materials


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


Corrosivity: Non-corrosive in presence of glass.


Special Remarks on Reactivity:

Hygroscopic; keep container tightly closed.

Incompatible with silver compounds, hypochlorites, and chlorites


Special Remarks on Corrosivity: Not available.


Polymerization: Will not occur.


Section 11: Toxicological Information


Routes of Entry: Absorbed through skin. Dermal contact. Inhalation. Ingestion.


Toxicity to Animals:

LD50: Not available.

LC50: Not available.


Chronic Effects on Humans:

May cause damage to the following organs: blood, kidneys, the nervous system, brain, eyes, central nervous system (CNS).


Other Toxic Effects on Humans:

Hazardous in case of skin contact (irritant, permeator), of ingestion, of inhalation.

Slightly hazardous in case of skin contact (corrosive), of eye contact (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: Causes skin irritation/inflammation and possible skin lesions/ulcerations and burns. Skin lesions begin with cracking of the skin and the formation of slow-healing ulcers. It may be harmful if absorbed through the skin.

Eyes: Causes eye irritation and possible eye/corneal injury/burns. Symptoms may include blurred vision, redness, pain and possibly severe tissue burns.

Inhalation: Causes irritation of the respiratory tract, mucous membranes, and lungs, ulceration of the mucous membranes. Exposure can cause coughing, spasm, inflammation and edema of the larynx, and bronchi, chemical pneumonitis, pulmonary edema, chest pains, burning sensation, wheezing, and difficulty in breathing. Inhalation can cause systemic poisoning

Ingestion: May be harmful if ingested. Causes digestive irritation and possible burns. Symptoms may include ulceration of the mouth, headache, nausea, vomiting, diarrhea, excess salivation. May affect behavior/central nervous system (lethargy, ataxia, nervousness, weakness, muscle tremors, convulsions, staggering, depression). cardiovascular system (rapid weak pulse, hypotension, dysrhythmia), respiration(rapid labored respiration), kidneys/urinary system (shrunken fibrotic kidneys, and anuria, proteinuria, albuminuria, hematuria, nephrosis from kidney damage). Other symptom may include low blood calcium levels (hypocalcemia).

Chronic Potential Health Effects:

Ingestion: Prolonged or repeated ingestion can cause kidney damage, emaciation due to poor appetite, and anemia and can affect behavior/central nervous system.

Eyes: Prolonged contact may cause eye damage.

Skin: Prolonged or repeated skin contact may cause dermatitis.


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 products of degradation are less toxic than the product itself.


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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