Hypophosphorous Acid

Synonyms: Phosphinic acid

SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name Hypophosphorous Acid
Product Form Substance
Catalogue No. AL2529
CAS Number 6303-21-5
EC Number 228-601-5
EC Index Number phosphinic acid
Grade 30-32%
HSN Code 28111920
Molecular Formula HPH2O2
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name Hypophosphorous Acid
Catalogue No. AL2529
Product form Substance
CAS Number 6303-21-5
EC Number 228-601-5
Grade 30-32%
EC Index Number phosphinic acid
Chemical Formula HPH2O2
HSN Code 28111920
Synonyms Phosphinic acid
Chemical Structure -
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture Reducing agent, catalyst in organic synthesis
Uses advised against Not specified
1.3 Details of the supplier of the safety data sheet
Company identification Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 Skin Corr. 1; Eye Dam. 1
Classification source ECHA C&L Inventory via PubChem CID 4124402 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms Corrosive
Signal word Danger
Hazard statements H314: Causes severe skin burns and eye damage; H318: Causes serious eye damage
2.3 Other hazards
Other hazards Corrosive to metals
SECTION 3: Composition/information on ingredients
3.1 Substance
Name Hypophosphorous Acid
CAS No. 6303-21-5
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation Move to fresh air. If symptoms persist, seek medical attention.
First-aid measures after skin contact Wash with plenty of soap and water. Seek medical attention if irritation develops.
First-aid measures after eye contact Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
First-aid measures after ingestion Rinse mouth. Do NOT induce vomiting. Seek medical attention immediately.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use Burning sensation, redness, and pain on contact with skin or eyes.
4.3 Indication of any immediate medical attention and special treatment needed
General information Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Unsuitable extinguishing media Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures May emit toxic fumes under fire conditions.
5.3 Advice for firefighters
Protection during firefighting Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures Contain spill and absorb with inert material. Dispose of in accordance with local regulations.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up Neutralize with a weak base and absorb with inert material.
6.4 Reference to other sections
Reference Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling Use personal protective equipment. Avoid contact with skin and eyes.
Hygiene measures Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection Handle with gloves.
Eye protection Tightly fitting safety goggles. Faceshield (8-inch minimum).
Skin and body protection Wear suitable protective clothing
Respiratory protection Use in a well-ventilated area. If exposure limits are exceeded, use appropriate respiratory protection.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state Liquid
Colour Colorless to pale yellow
Odour Slightly pungent
Odour threshold No data available
pH value 1.5-2.0 (1% solution)
Relative evaporation rate (butylacetate=1) No data available
Melting point 26.5 °C
Freezing point No data available
Boiling point Decomposes upon heating >133 °C
Flash point No data available
Auto-ignition temperature No data available
Decomposition temperature No data available
Flammability (solid, gas) Not flammable
Vapour pressure 0.00323 mmg Hg at 25 °C (effusion method: vapor pressure balance)
Relative vapour density at 20°C No data available
Density Marketed in aqueous solutions of varying concentrations, 50% (density 1.274), 30-32% (density 1.13), 10% (density 1.04)
Solubility Miscible with water
Log Pow No data available
Viscosity, kinematic No data available
Viscosity, dynamic No data available
Explosive properties Not explosive
Oxidising properties Not oxidizing
Explosive limits No data available
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity Reacts with strong oxidizers and bases.
10.2 Chemical stability
Chemical stability Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions No dangerous reactions known under normal conditions of use.
10.4 Conditions to avoid
Conditions to avoid Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials Strong oxidizing agents, strong bases, metals.
10.6 Hazardous decomposition products
Hazardous decomposition products Hazardous decomposition products formed under fire conditions - Oxides of phosphorus.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity LD50 (oral, rat) 2000 mg/kg
Skin corrosion/irritation H314: Causes severe skin burns and eye damage
Serious eye damage/irritation H318: Causes serious eye damage
Respiratory or skin sensitisation Not classified (based on available data)
Germ cell mutagenicity Not classified (based on available data)
Carcinogenicity Not classified (based on available data)
Specific target organ toxicity (single exposure) Not classified (based on available data)
Specific target organ toxicity (repeated exposure) Not classified (based on available data)
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information Not specified
12.2 Persistence - degradability
Persistence - degradability Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential Not specified
12.4 Mobility in soil
Mobility in soil Not specified
12.6 Other adverse effects
Environmental precautions Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR) UN 3264
UN-No. (IMDG) UN 3264
UN-No. (IATA) UN 3264
UN-No. (ADN) UN 3264
UN-No. (RID) UN 3264
14.2 UN proper shipping name
Proper Shipping Name (ADR) Hypophosphorous acid
Proper Shipping Name (IMDG) Hypophosphorous acid
Proper Shipping Name (IATA) Hypophosphorous acid
Proper Shipping Name (ADN) Hypophosphorous acid
Proper Shipping Name (RID) Hypophosphorous acid
14.3 Transport hazard class(es)
Transport hazard class(es) 8
14.4 Packing group
Packing group (ADR) II
Packing group (IMDG) II
Packing group (IATA) II
Packing group (ADN) II
Packing group (RID) II
14.5 Environmental hazards
Dangerous for the environment Not specified
Marine pollutant Not specified
Other information No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations Not specified
SECTION 16: Other Information
Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.