• Molecular Formula: (H3PW12O40)
  • Molecular Weight: 2880.2
  • CAS No. 12501-23-4
  • UN No: 3260/1759
  • UN Packing Code :
  • Packing Group : III
  • Proper Shipping Name:
  • Flash Point : NA c
  • Marine Pollutant: NO
  • Solid/Liquid/Gas : Solid
  • EMS : NA
  • MPA Group : NA
  • IMO Class: 8


Sr. Characteristic Specifications
1 Description White to off white powder
2 Identification Peaks at 1080±2 cm-1 and 983±2 cm-1
4 Water content by KF Not more than 15.0
4 Assay ( on anhydrous basis ) Not less than 90.0 % w/w


  • Catalyst
  • Dyeing and Pigments
  • Histology
  • Medicinal
  • Precipitation of Proteins
  • Trichrome Reagents


50 kg/ 25 kgs HDPE bags with heat-sealed and automatically stitched inner plastic liner.


Section 1: Chemical Product and Company Identification

Product Name Phosphotungstic acid
Catalog Codes SLP5083
CAS# 12501-23-4
RTECS TH5650000
TSCA:TSCA 8(b) inventory Phosphotungstic acid
CI# Not available
Synonym Tungstophosforic acid
Chemical Name Not available
Chemical Formula P2O5.24WO3.xH20

For non-emergency assistance, call 09765490787

Section 2: Composition and Information on Ingredients

Composition - -
Name CAS # % by Weight
Phosphotungstic acid 12501-23-4 100

Toxicological Data on Ingredients : Phosphotungstic acid LD50: Not available. LC50: Not available.

Section 3:Hazards Identification

Potential Acute Health Effects: Hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Corrosive to eyes and skin.The amount of tissue damage depends on length of contact.

Potential Chronic Health Effects : CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. The substance is toxic to lungs, mucous membranes. Repeated or prolonged exposure to the substance can produce target organs damage. 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. Do not use an eye ointment. Seek medical attention.

Skin Contact: If the chemical got onto the clothed portion of the body, remove the contaminated clothes as quickly as possible, protectingyour own hands and body. Place the victim under a deluge shower. If the chemical got on the victim's exposed skin, such as the hands : Gently and thoroughly wash the contaminated skin with running water and non-abrasive soap. Be particularlycareful to clean folds, crevices, creases and groin. If irritation persists, seek medical attention. Wash contaminated clothingbefore reusing.

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

InhalationAllow the victim to rest in a well ventilated area. Seek immediate medical attention.

Serious InhalationEvacuate 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.

Ingestion : Do not induce vomiting. Loosen tight clothing such as a collar, tie, belt or waistband. If the victim is not breathing, perform mouth-to-mouth resuscitation. Seek immediate medical attention.

Section 5: Fire and Explosion Data

Flammability of the Product: Non-flammable

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 inpresence of static discharge: Not available.

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: Contact with metals may evolve flammable hydrogen gas.

Special Remarks on Explosion Hazards: When heated, vapors may form explosive mixtures with air. Containers may explode when heat

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. Be careful that the product is not present at a concentration level above TLV. Check TLV on the MSDS and with local authorities.

Section 7 : Handling and Storage

Precautions : Keep container dry. Do not breathe dust. Never add water to this product Wear suitable protective clothing In case of insufficient ventilation, wear suitable respiratory equipment If you feel unwell, seek medical attention and show the label when possible. Avoid contact with skin and eyes

Storage : Corrosive materials should be stored in a separate safety storage cabinet or room.

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.

Section 9 : Physical and Chemical Properties

Physical state and appearance Solid
Odour Not available
Taste Not available
Molecular Weight Not available
Colour Not available
PH (1% soln/water) Not available
Boiling Point Not available
Melting Point Decomposes
Critical Temperature Not Available
Specific Gravity Not Available
Vapour Pressure Not Available
Vapour Density Not Available
Volatility Not Available
Odour Threshold Not Available
Water/Oil Dist. Coeff Not Available
Ionicity (in Water) Not Available
Dispersion Properties Not Available

Section 10 : Stability and Reactivity Data

Stability : The product is stable

Section 11: Toxicological Information

Routes of Entry : Eye contact. Inhalation. Ingestion.

Toxicity to Animals : LD50: Not available. LC50: Not available.

Chronic Effects on Humans : The substance is toxic to lungs, mucous membranes.

Other Toxic Effects on Humans : Hazardous in case of skin contact (irritant), of ingestion, of inhalation.

Section 12: Ecological Information

Ecotoxicity : 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 more toxic.

Section 13: Disposal Considerations

Waste Disposal :

Section 14: Transport Information

DOT Classification : CLASS 8: Corrosive solid.

Identification : Corrosive solud, n.o.s. (Phosphotungstic acid) : UN1759 PG: III

Special Provisions for Transport : Not available

Section 15: Other Regulatory Information


Section 16: Other Information

References : Not available

Other Special Considerations : Not available

Created : 10/11/2005 01:45 PM

Last Updated : 05/21/2013 12:00 PM