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Friday, 12 August 2011 01:08

Phosphates, Inorganic & Organic: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division / Subsidiary Risks

CALCIUM PHOSPHIDE
1305-99-3

4.3/ 6.1

DIETHYLTHIOPHOSPHORYL CHLORIDE
2524-04-1

The substance decomposes on heating producing toxic fumes •Upon heating, toxic fumes are formed

8

PHOSPHINE
7803-51-2

The gas is heavier than air

The substance may spontaneously ignite on contact with air •On combustion, forms toxic fumes of phosphorus oxides •Reacts with water, halogens, nitric acid, nitrous oxides, oxygen, copper, causing fire and explosion hazard •On contact with air it emits toxic fumes of phosphorus oxides

6.1 / 2.1

PHOSPHORUS
7723-14-0

The substance may spontaneously ignite on contact with air producing toxic fumes (phosphorus oxides) •Reacts violently with oxidants, halogens and sulphur, with fire and explosion hazard •Reacts with strong alkalies, giving off toxic gas (phosphine)

4.2/ 6.1

PHOSPHORUS OXYCHLORIDE
10025-87-3

8

PHOSPHORUS PENTACHLORIDE
10026-13-8

On burning toxic gases are formed •The solution in water is a strong acid, it reacts violently with bases and is corrosive •Reacts with water, producing hydrogen chloride fume and phosphoric acid mist •On contact with air it emits corrosive fumes •Attacks plastics and rubber

8

PHOSPHORUS PENTASULFIDE
1314-80-3

4.3/ 4.1

PHOSPHORUS PENTOXIDE
1314-56-3

The solution in water is a strong acid, it reacts violently with bases and is corrosive •Reacts violently with perchloric acid causing fire and explosion hazard •Reacts violently with water forming phosphoric acid with heat generation •In the presence of water reacts with metals forming flammable or poisonous gases (hydrogen or phosphine)

8

PHOSPHORUS TRICHLORIDE
7719-12-2

The vapour is heavier than air

On combustion, forms toxic, corrosive, flammable fumes of phosphorus oxides, hydrogen chloride, phosphorus •The substance decomposes on heating and on contact with water producing toxic acid fumes and gases (phosphine), and is corrosive to many metals •The substance is a strong oxidant and reacts with combustible and reducing materials •The solution in water is a strong acid, it reacts violently with bases and is corrosive to many metals •Reacts violently with bases causing fire and explosion hazard •Reacts with alcohols and phenols •On contact with air it emits corrosive fumes •Attacks many metals forming combustible gas (Hydrogen)  •Attacks many materials

3/ 6.1

TETRAPHOSPHORUS TRISULPHIDE
1314-85-8

4.1

TETRAPOTASSIUM PYROPHOSPHATE
7320-34-5

The solution in water is a medium strong base •Reacts with strong acids

TETRASODIUM PYROPHOSPHATE
7722-88-5

On combustion, forms toxic gases •The solution in water is a weak base •Reacts with acids

THIOPHOSPHORYL CHLORIDE
3982-91-0

The vapour is heavier than air

The substance decomposes on contact with water or humidity producing phosphoric acid, hydrogen chloride, hydrogen sulfide, which are toxic and flammable •Upon heating, toxic fumes are formed •Reacts with strong oxidants and alcohols •Attacks many metals in presence of water

8

TRIBUTYL PHOSPHATE
126-73-8

The substance decomposes on heating and on burning producing toxic vapours and gases (carbon and phosphorus oxides, and phosphine) •Attacks some forms of plastics, rubber and coatings

TRICRESYL PHOSPHATE
1330-78-5

6.1

TRI-o-CRESYL PHOSPHATE
78-30-8

The substance decomposes on heating and on burning producing toxic fumes (including phosphorus oxides) •Reacts with oxidants

6.1

TRIETHYL PHOSPHITE
122-52-1

The substance decomposes on burning producing toxic fumes •Reacts with oxidants and strong bases

3

TRIMETHYL PHOSPHATE
512-56-1

The substance decomposes on heating producing toxic fumes of POx

TRIMETHYL PHOSPHITE
121-45-9

3

TRIPHENYL PHOSPHITE
101-02-0

On combustion, forms toxic fumes (POx) •The substance decomposes on heating or on burning producing toxic fumes (phosphorus oxides) •Reacts with strong oxidants

TRIPHENYLPHOSPHINE
603-35-0

Dust explosion possible if in powder or granular form, mixed with air

The substance decomposes on heating producing highly toxic fumes of phosphorus oxides and phosphine •Reacts with strong acids and strong oxidants

TRIS(2-ETHYLHEXYL) PHOSPHATE
78-42-2

The substance decomposes on heating producing phosphine, phosphorus oxides •Reacts with strong oxidants

For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance

 

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