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Benzenephosphinic acid(1779-48-2)

Benzenephosphinic acid(1779-48-2)
Product IdentificationBack to Contents
【Product Name】

Benzenephosphinic acid
【Synonyms】

Benzenephosphinic acid
Benzenephosphonous acid
Hydroxyphenylphosphine oxide
Phenylphosphonous acid
【CAS】

1779-48-2
【Formula】

C6H7O2P
【Molecular Weight】

142.1
【EINECS】

217-217-3
【RTECS】

SZ5462500
【RTECS Class】

Primary Irritant
【Beilstein/Gmelin】

2802244
【Beilstein Reference】

4-16-00-01033
Physical and Chemical PropertiesBack to Contents
【Appearance】

White crystals.
【Solubility in water】

77 g/L
【Melting Point】

78 - 80
【Boiling Point】

222
【Density】

1.38 g/cm3 (25 C)
First Aid MeasuresBack to Contents
【Ingestion】

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
【Inhalation】

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
【Skin】

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
【Eyes】

Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).
Handling and StorageBack to Contents
【Storage】

Store in a cool, dry place. Keep container closed when not in use. Corrosives area.
【Handling】

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Discard contaminated shoes.
Hazards IdentificationBack to Contents
【Ingestion】

May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
【Inhalation】

Causes chemical burns to the respiratory tract.
【Skin】

Causes skin burns.
【Eyes】

Causes eye burns.
【Hazards】

Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】

R 22 37/38 41
【EC Safety Phrase】

S 26 36/37/39
【UN (DOT)】

3261
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Poison Class】

2
Fire Fighting MeasuresBack to Contents
【Flash Point】

200
【Autoignition】

125
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability and ReactivityBack to Contents
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents.
【Decomposition】

Phosphine, carbon monoxide, oxides of phosphorus, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

3261
【Hazard Class】

8
【Packing Group】

I; II; III
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