Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Use water in large amounts, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.
AVOID ALL CONTACT!
Use ventilation, local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
MAY BE ABSORBED! Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Wear safety spectacles or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Blue lips, fingernails and skin. Confusion. Convulsions. Dizziness. Headache. Nausea. Unconsciousness.
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .
CLASSIFICATION & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.
According to UN GHS Criteria
Transportation UN Classification
UN Hazard Class: 8; UN Pack Group: III
Separated from oxidants, nitrates, nitrites and combustible substances.
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALS OR POWDER.
Chemical dangers Decomposes on contact with hot surfaces or flames. This produces corrosive fumes of sulfur oxides. The solution in water is a medium strong acid. The substance is a strong reducing agent. It reacts violently with oxidants, powdered metals, nitrates, nitrites and heavy metal salts.
Molecular mass: 164.1
Decomposes at 120°C Density: 1.88 g/cm³ Solubility in water, g/100ml at 20°C: 58.7 Octanol/water partition coefficient as log Pow: -3.6
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 eyes and skin. The substance may cause effects on the blood. This may result in the formation of methaemoglobin.
Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed.
Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood. This may result in anaemia.
OCCUPATIONAL EXPOSURE LIMITS
The substance is toxic to aquatic organisms.
Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
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