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Phosphinic acid(6303-21-5)

Phosphinic acid(6303-21-5)
Product IdentificationBack to Contents
【Product Name】

Phosphinic acid
【Synonyms】

Dihydroxyphosphine
Hydroxyphosphine oxide
Phosphinic acid
Phosphonous acid
【CAS】

6303-21-5
【Formula】

H3O2P
【Molecular Weight】

66
【EINECS】

228-601-5
【Merck】

13,4894
【Beilstein/Gmelin】

25146 (G)
Physical and Chemical PropertiesBack to Contents
【Appearance】

Colorless oily liquid or deliquescent crystals with a sour odor.
【Melting Point】

26.5
【Boiling Point】

130
【Density】

1.493 g/cm3 (20 C)
【pKa/pKb】

pK1 1.1. (pKa)
【Usage】

Used in the formulation of pharmaceuticals, discoloration of polymers, water treatment, retrieval of precious or non-ferrous metals. Its main use is for electrodless plating.
【Refractive Index】

1.39 (20 C)
First Aid MeasuresBack to Contents
【Ingestion】

Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
【Inhalation】

If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
【Skin】

Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
【Eyes】

If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.
Handling and StorageBack to Contents
【Storage】

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
【Handling】

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
【Respirators】

Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
【Exposure Effects】

The toxicological properties of this material have not been investigated.
Fire Fighting MeasuresBack to Contents
【Fire Fighting】

Use water in flooding quantities as fog. Use alcohol foam, dry chemical or carbon dioxide.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Apply water spray or mist to knock down vapors. Disperse vapors using fans or blowers. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom. Add ferric chloride (FeCl3). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability and ReactivityBack to Contents
【Stability】

No data.
【Incompatibilities】

Reacts explosively with mercury(II) oxide Reacts violently with mercury(II) nitrate.
Transport InformationBack to Contents
【UN Number】

3264
Hazards IdentificationBack to Contents
【EC Risk Phrase】

R 34
【EC Safety Phrase】

S 26 36/37/39 45
【UN (DOT)】

3264
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