ICSC 0602 - ZINC PHOSPHIDE

ZINC PHOSPHIDE	ICSC: 0602 (March 2001)
Trizinc diphosphide

CAS #: 1314-84-7

UN #: 1714

EC Number: 215-244-5

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible but forms flammable gas on contact with water or damp air.	NO contact with acids, water or oxidizing agents.	In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Headache. Fatigue. Nausea. Diarrhoea. Vomiting.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Burning sensation.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Pain. Photophobia.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Nausea. Incoordination. Fatigue. Vomiting. Cough. Diarrhoea. Dizziness. Headache. Laboured breathing. Unconsciousness.	Do not eat, drink, or smoke during work. Wash hands before eating.	Give a slurry of activated charcoal in water to drink. See Notes. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered dry containers. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER In contact with water releases flammable gases which may ignite spontaneously Fatal if swallowed Harmful in contact with skin Causes eye irritation Causes damage to central nervous system if swallowed Causes damage to the liver and the kidneys through prolonged or repeated exposure if swallowed Very toxic to aquatic life Transportation UN Classification UN Hazard Class: 4.3; UN Subsidiary Risks: 6.1; UN Pack Group: I
STORAGE
Separated from strong oxidants, acids and water. Dry. Cool. Keep in a well-ventilated room.
PACKAGING

ZINC PHOSPHIDE

ICSC: 0602

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance DARK GREY CRYSTALS, POWDER OR PASTE WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on heating and on contact with acids. Decomposes slowly on contact with water. This produces toxic and flammable fumes of phosphorous oxides and zinc oxides and phosphine. Reacts violently with strong oxidants. This generates fire hazard.	Formula: Zn₃P₂ Molecular mass: 258.1 Boiling point: 1100°C Melting point: 420°C Density: 4.6 g/cm³ Solubility in water: none, slowly decomposes

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
DARK GREY CRYSTALS, POWDER OR PASTE WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on heating and on contact with acids. Decomposes slowly on contact with water. This produces toxic and flammable fumes of phosphorous oxides and zinc oxides and phosphine. Reacts violently with strong oxidants. This generates fire hazard.

Formula: Zn₃P₂
Molecular mass: 258.1
Boiling point: 1100°C
Melting point: 420°C
Density: 4.6 g/cm³
Solubility in water: none, slowly decomposes

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure The substance is irritating to the respiratory tract. The substance may cause effects on the liver, kidneys, heart and nervous system. Exposure at high levels could cause death. Inhalation of decomposition products (phosphine) may cause lung oedema. See Notes.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered. Effects of long-term or repeated exposure The substance may have effects on the nervous system.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Effects of short-term exposure
The substance is irritating to the respiratory tract. The substance may cause effects on the liver, kidneys, heart and nervous system. Exposure at high levels could cause death. Inhalation of decomposition products (phosphine) may cause lung oedema. See Notes.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.

Effects of long-term or repeated exposure
The substance may have effects on the nervous system.

OCCUPATIONAL EXPOSURE LIMITS
MAK: (respirable fraction): 0.1 mg/m³; peak limitation category: I(4); pregnancy risk group: C. MAK: (inhalable fraction): 2 mg/m³; peak limitation category: I(2); pregnancy risk group: C

ENVIRONMENT
The substance is very toxic to aquatic organisms. This substance may be hazardous to the environment. Special attention should be given to birds and mammals.

NOTES
Reacts violently with fire extinguishing agents such as water and carbon dioxide. Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. If a patient vomits after ingestion, collect the vomitus in a plastic bag to prevent emission of phosphine. See ICSC 0694. EU Supplementary Hazard Statements EUH029 ('Contact with water liberates toxic gas') and EUH032 ('Contact with acids liberates very toxic gas') may apply.

NOTES

Reacts violently with fire extinguishing agents such as water and carbon dioxide.
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.
If a patient vomits after ingestion, collect the vomitus in a plastic bag to prevent emission of phosphine.
See ICSC 0694.
EU Supplementary Hazard Statements EUH029 ('Contact with water liberates toxic gas') and EUH032 ('Contact with acids liberates very toxic gas') may apply.

ADDITIONAL INFORMATION

EC Classification
Symbol: F, T+, N; R: 15/29-28-32-50/53; S: (1/2)-3/9/14-30-36/37-45-60-61

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       Toxicological Abbreviations