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[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols] |  |
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TYPES OF
HAZARD / EXPOSURE |
ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
| FIRE |
Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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| EXPLOSION |
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In case of fire: keep drums, etc., cool by spraying with water.
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| EXPOSURE |
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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| Inhalation |
Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing. Symptoms may be delayed (see Notes).
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Local exhaust or breathing protection.
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Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
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| Skin |
Redness. Skin burns. Pain. Blisters.
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Protective clothing.
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First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
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| Eyes |
Redness. Pain. Loss of vision. Severe deep burns.
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Face shield, or eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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| Ingestion |
Sore throat. Burning sensation. Abdominal pain. Vomiting. Drowsiness. Shock or collapse. Convulsions.
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Do not eat, drink, or smoke during work. Wash hands before eating.
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Rinse mouth. Rest. Refer for medical attention.
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| SPILLAGE DISPOSAL | PACKAGING & LABELLING |
Sweep spilled substance into plastic containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P2 filter respirator for harmful particles).
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Xn Symbol
R: 21/22 S: 2-24/25 UN Hazard Class UN Subsidiary Risks Do not transport with food and feedstuffs. |
| EMERGENCY RESPONSE | STORAGE |
NFPA Code: H3; F1; R0;
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Separated from strong oxidants, food and feedstuffs. Dry.
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| IMPORTANT DATA | |
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PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS OR WHITE POWDER. CHEMICAL DANGERS: On contact with hot surfaces or flames this substance decomposes forming formic acid and carbon monoxide. The solution in water is a medium strong acid. Reacts violently with strong oxidants causing fire and explosion hazard. Reacts with some silver compounds to form explosive silver oxalate. OCCUPATIONAL EXPOSURE LIMITS: TLV: ppm; 1 mg/m 3; 2 mg/m 3 (STEL) (ACGIH 1995-1996). |
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly if powdered. EFFECTS OF SHORT-TERM EXPOSURE: Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of aerosol may cause lung oedema (see Notes). The substance may cause effects on the kidneys. Exposure far above the OEL may result in death. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the kidneys , resulting in stones. |
| PHYSICAL PROPERTIES | |
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Sublimation point: 157°C
Melting point (decomposes): 189.5°C Relative density (water = 1): 1.9 Solubility in water: moderate |
Octanol/water partition coefficient as log Pow: -0.7 (estimated)
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| ENVIRONMENTAL DATA | |
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| NOTES | |
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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 spray, by a doctor or a person authorized by him/her, should be considered. Do NOT use in the vicinity of a fire or a hot surface, or during welding.
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