Hypophosphorous acid (H3PO2) is also named dihydridohydroxidooxidophosphorus, phosphinic acid, or more commonly “HPA”.
Hypophosphorous Acid Uses
Bleaching Agent: Hypophosphorous Acid is used as a bleaching or decolorizing agent for plastics, synthetic fibers, and chemicals.
Color Stabilizer : HPA is used as a decolorizing agent and for color stabilization during the manufacture of chemicals and several plastics including: nylon fibers, polyamides, polyester fiber, polyacrilonitrile, alkyd rsins, epoxies, fatty acid esters, and glycerols.
Hypophosphite Salts : Hypophosphorous Acid is used in the production of Hypophosphite Salts (i.e., Calcium, Magnesium, Manganese, Potassium, Iron, and Ammonium) which are in turn used in synthetic fibers as wetting dispersing, emulsifying, and anti-static agents.
Chemical Intermediate : Used in organic synthesis and organo phosphinic acid production.
Neturalizing Agent : Used as a moderately strong monobasic acid.
Catalyst : Used as a polymerization and polycondensation catalyst.
Wetting Agent : Used as a wetting, dispersing, or emulsifying agent in electroplating.
Reducing Agent : May be used for its strong but slow reducing action.
Antioxidant : Hypophosphorous Acid may be used as an antioxidant.
Pharmaceutical : HPA may be used as a stimulant in pharmaceuticals.
Hypophosphorous Acid (50% in water) extrapure AR
Cas No. 6303-21-5
HSN Code : Molecular Formula : H3PO2
Molecular Weight : 66.0
Analysis Report
| Test | Specification | Result |
| Appearance | Clear Liquid | Clear Liquid |
| Assay (H3PO2) | 50.00 TO 52.00 % | 50.38 % |
| Chloride (Cl),ppm | 150 ppm MAXIMUM | 20 ppm |
| Color, (APHA) | Less than 30 APHA | Less than 30 APHA |
| Iron (Fe), ppm | 10 ppm MAXIMUM | 2 ppm |
| Orthophosphite % | 0.500 % MAXIMUM | 0.400% |
| Specific Gravity | 1.201 to 1.265 G/CC | 1.210 |
| Product Name |
Hypophosphorous Acid |
| Product Type | RXSOL-22-6399-220 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Stock Point ::: Mumbai, Kandla, Kolkata, Chennai, Visakhaptnam, Fujairah, Muscat
| Phone | +91 22 27815540 / 41 / 42 |
| Fax | +91 22 2781 1318 :::AOH :0091 9322594669 |
| mail@rxmarine.com |
Component CAS-No EC-No. Weight % CLP Classification - Regulation (EC) No 1272/2008
Water 7732-18-5 231-791-2 50 -
Hypophosphorus acid 6303-21-5 EEC No. 228-601-5 50 Skin Corr. 1B (H314) Eye Dam. 1 (H318)
CLP Classification - Regulation (EC) No 1272/2008
Physical hazards
Based on available data, the classification criteria are not met
Health hazards
Skin Corrosion/irritation Category 1 B (H314)
Serious Eye Damage/Eye Irritation Category 1 (H318)
Environmental hazards
Based on available data, the classification criteria are not met
Signal Word Danger
Hazard Statements
H314 - Causes severe skin burns and eye damage
Precautionary Statements
P301 + P330 + P331 - IF SWALLOWED: rinse mouth. Do NOT induce vomiting
P280 - Wear eye protection/ face protection
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P310 - Immediately call a POISON CENTER or doctor/ physician
| Eye Contact |
Contact Immediate medical attention is required. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. |
|
Skin Contact |
Wash off immediately with soap and plenty of water while removing all contaminated clothes and shoes. Immediate medical attention is required. |
|
Ingestion |
Do not induce vomiting. Never give anything by mouth to an unconscious person. Drink plenty of water. Call a physician immediately. If possible drink milk afterwards. |
| Inhalation | Remove from exposure, lie down. Move to fresh air. If not breathing, give artificial respiration. Immediate medical attention is required. |
| Self-Protection of the First Aider | Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and prevent spread of contamination. |
Most important symptoms and effects, both acute and delayed
Causes burns by all exposure routes. Product is a corrosive material. Use of gastric lavage or emesis is contraindicated. Possible perforation of stomach or
esophagus should be investigated: Ingestion causes severe swelling, severe damage to the delicate tissue and danger of perforation
Indication of any immediate medical attention and special treatment needed
Notes to Physician Treat symptomatically
5.1. Extinguishing media
Suitable Extinguishing Media
Carbon dioxide (CO 2). Dry chemical. Chemical foam.
Extinguishing media which must not be used for safety reasons No information available.
5.2. Special hazards arising from the substance or mixture
Thermal decomposition can lead to release of irritating gases and vapors.
Hazardous Combustion Products
Oxides of phosphorus, Phosphorus trihydride (phosphine).
5.3. Advice for firefighters As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
6.1. Personal precautions, protective equipment and emergency procedures
Ensure adequate ventilation.
6.2. Environmental precautions
See Section 12 for additional ecological information.
6.3. Methods and material for containment and cleaning up
Soak up with inert absorbent material (e.g. sand, silica gel, acid binder, universal binder, sawdust). Keep in suitable, closed containers for disposal. Do not let this chemical enter the environment.
6.4. Reference to other sections
Refer to protective measures listed in Sections 8 and 13
7.1. Precautions for safe handling
Do not breathe vapors or spray mist. Do not get in eyes, on skin, or on clothing. Use only in area provided with appropriate exhaust ventilation.
Hygiene Measures
Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product. Remove and wash contaminated clothing before re-use. Wash hands before breaks and at the end of workday.
7.2. Conditions for safe storage, including any incompatibilities
Keep in a dry, cool and well-ventilated place. Keep container tightly closed. Corrosives area.
7.3. Specific end use(s)
Use in laboratories
8.1. Control parameters
Exposure limits
This product, as supplied, does not contain any hazardous materials with occupational exposure limits established by the region specific regulatory bodies
Biological limit values
This product, as supplied, does not contain any hazardous materials with biological limits established by the region specific regulatory bodies
Monitoring methods
BS EN 14042:2003 Title Identifier: Workplace atmospheres. Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents.
Derived No Effect Level (DNEL) No information available
Predicted No Effect Concentration (PNEC) No information available.
8.2. Exposure controls Engineering Measures
Ensure adequate ventilation, especially in confined areas. Ensure that eyewash stations and safety showers are close to the workstation location. Wherever possible, engineering control measures such as the isolation or enclosure of the process, the introduction of process or equipment changes to minimise release or contact, and the use of properly designed ventilation systems, should be adopted to control hazardous materials at source
Personal protective equipment
Eye Protection Goggles (European standard - EN 166)
Hand Protection Protective gloves
Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure Inspect gloves before use.
Please observe the instructions regarding permeability and breakthrough time which are provided by the supplier of the gloves. (Refer to manufacturer/supplier for information) Ensure gloves are suitable for the task: Chemical compatability, Dexterity, Operational conditions, User susceptibility, e.g. sensitisation effects, also take into consideration the specific local conditions under which the product is used, such as the danger of cuts, abrasion. Remove gloves with care avoiding skin contamination.
Respiratory Protection
When workers are facing concentrations above the exposure limit they must use appropriate certified respirators. To protect the wearer, respiratory protective equipment must be the correct fit and be used and maintained properly
Large scale/emergency use
Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced Recommended Filter type: Particulates filter conforming to EN 143 Inorganic gases and vapours filter Type B Grey conforming to EN14387
Small scale/Laboratory use
Use a NIOSH/MSHA or European Standard EN 149:2001 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Recommended half mask:- Particle filtering: EN149:2001 When RPE is used a face piece Fit Test should be conducted
Appearance Colorless
Physical State Liquid
Odor pungent Odor
Threshold No data available
pH 1.0 50% aq.sol. (20°C)
Melting Point/Range -25 °C / -13 °F
Softening Point No data available
Boiling Point/Range 108 °C / 226.4 °F @ 1013 hPa
Flash Point No information available Method - No information available
Evaporation Rate No data available
Flammability (solid,gas) Not applicable
Liquid Explosion Limits No data available
Vapor Pressure 30 hPa @ 20 °C
Vapor Density No information available (Air = 1.0)
Specific Gravity / Density 1.270
Bulk Density Not applicable Liquid
Water Solubility soluble
Solubility in other solvents No information available
Partition Coefficient (n-octanol/water) Autoignition Temperature No data available
Decomposition Temperature 108 °C
Viscosity No data available
Explosive Properties No information available
Oxidizing Properties No information available
10.1. Reactivity None known, based on information available
10.2. Chemical stability Stable under normal conditions.
10.3. Possibility of hazardous reactions Hazardous Polymerization Hazardous polymerization does not occur. Hazardous Reactions No information available.
10.4. Conditions to avoid Incompatible products.
10.5. Incompatible materials Strong oxidizing agents. Strong bases. Metals.
10.6. Hazardous decomposition products Oxides of phosphorus. Phosphorus trihydride (phosphine)
RTECS#:
CAS# 6303-21-5 unlisted.
CAS# 7732-18-5: ZC0110000
LD50/LC50: Not available.
Not available.
Carcinogenicity:
CAS# 6303-21-5: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. CAS# 7732-18-5: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: No information available.
Teratogenicity: No information available.
Reproductive Effects: No information available.
Neurotoxicity: No information available.
Mutagenicity: No information available.
Other Studies: No data available.
12.1. Toxicity
Ecotoxicity effects Do not empty into drains. .
12.2. Persistence and degradability
Persistence Soluble in water, Persistence is unlikely, based on information available. Degradability Not relevant for inorganic substances.
12.3. Bioaccumulative potential Bioaccumulation is unlikely
12.4. Mobility in soil The product is water soluble, and may spread in water systems . Will likely be mobile in the environment due to its water solubility. Highly mobile in soils
12.5. Results of PBT and vPvB assessment No data available for assessment.
12.6. Other adverse effects Endocrine Disruptor Information This product does not contain any known or suspected endocrine disruptors
13.1. Waste treatment methods
Waste from Residues / Unused Products Waste is classified as hazardous. Dispose of in accordance with the European Directives on waste and hazardous waste. Dispose of in accordance with local regulations.
Contaminated Packaging Dispose of this container to hazardous or special waste collection point.
European Waste Catalogue (EWC) According to the European Waste Catalogue, Waste Codes are not product specific, but application specific.
Other Information Waste codes should be assigned by the user based on the application for which the product was used. Do not empty into drains. Do not dispose of waste into sewer. Large amounts will affect pH and harm aquatic organisms. Solutions with low pH-value must be neutralized before discharge.
Land transport (ADR/RID)
| UN number | UN 3264 |
| Proper shipping name | CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) |
| Class | 8 |
| Packing group | II |
Air transport (IATA)
| UN number | UN 3264 |
| Proper shipping name | CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) |
| Class | 8 |
| Packing group | II |
Sea transport (IMDG)
| UN number | UN 3264 |
| Proper shipping name | CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) |
| Class | 8 |
| Packing group | II |
US FEDERAL
TSCA
CAS# 6303-21-5 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
Health & Safety Reporting
List None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
None of the chemicals in this product are under a Chemical Test Rule.
Section 12b None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule None of the chemicals in this material have a SNUR under TSCA.
SARA
CERCLA Hazardous
Substances and corresponding RQs None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances None of the chemicals in this product have a TPQ.
SARA Codes CAS # 6303-21-5: acute, flammable. Section 313 No chemicals are reportable under
Section 313.
Clean Air Act: This material does not contain any hazardous air pollutants. This material does not contain any Class 1 Ozone depletors. This material does not contain any Class 2 Ozone depletors.
Clean Water Act: None of the chemicals in this product are listed as Hazardous Substances under the CWA. None of the chemicals in this product are listed as Priority Pollutants under the CWA. None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA: None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
CAS# 6303-21-5 is not present on state lists from CA, PA, MN, MA, FL, or NJ. CAS# 7732-18-5 is not present on state lists from CA, PA, MN, MA, FL, or NJ. California No Significant Risk Level: None of the chemicals in this product are listed. European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols:
The information provided about the product on this Safety Data Sheet has been compiled from knowledge of the individual constituents.The data given here is based on current knowledge and experience. This Safety Data Sheet describes the product .in terms of safety requirements and does not signify any warranty with regard to the product's properties The data given here only applies when product used for proper application(s). The product is not sold as suitable for other applications - usage in such may cause risks not mentioned in this sheet. Do not use for other.
DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable.