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| TYPES OF HAZARD / EXPOSURE |
ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
| FIRE | Combustible. |
NO open flames. |
Powder, water spray, foam, carbon dioxide. |
| EXPLOSION | Finely dispersed particles form explosive mixtures in air. |
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. |
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| EXPOSURE | PREVENT DISPERSION OF DUST! |
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| Inhalation | Cough. Shortness of breath. Sore throat. |
Ventilation (not if powder). |
Fresh air, rest. Refer for medical attention. |
| Skin | Redness. |
Protective gloves. |
Rinse skin with plenty of water or shower. Refer for medical attention. |
| Eyes | Redness. Pain. |
Safety goggles. |
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. |
| Ingestion | Abdominal pain. Sore throat. |
Do not eat, drink, or smoke during work. |
Rinse mouth. Refer for medical attention. |
| SPILLAGE DISPOSAL | PACKAGING & LABELLING |
| Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P2 filter respirator for harmful particles). |
| EMERGENCY RESPONSE | STORAGE |
| Separated from strong oxidants, strong bases, metal nitrates and metals. Dry. |
| IMPORTANT DATA | |
| PHYSICAL STATE; APPEARANCE: COLOURLESS CRYSTALS PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. CHEMICAL DANGERS: The substance decomposes on heating above 175°C. The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metal. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. |
ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the teeth , resulting in erosion. |
| PHYSICAL PROPERTIES | |
| Decomposes below boiling point at 175°C Melting point: 153°C Solubility in water, g/100 ml at 20°C: 59 |
Flash point: 100°C Explosive limits, vol% in air: 0.28-2.29 Octanol/water partition coefficient as log Pow: -1.7 |
| ENVIRONMENTAL DATA | |
| NOTES | |