Chemical dangers Decomposes above 160°C . This produces ammonia, nitrogen oxides and sulfur oxides. The solution in water is a weak acid. Attacks mild steel. Contact with hot water may cause formation of large amounts of steam. Reacts with acids and strong oxidants.
Formula: H6N2O3S / NH4OSO2NH2
Molecular mass: 114.1
Decomposes at 160°C Melting point: 131°C Relative density (water = 1): 1.8 Solubility in water: very good Vapour pressure at 20°C: negligible
EXPOSURE & HEALTH EFFECTS
Routes of exposure
Effects of short-term exposure The substance is irritating to the eyes.
Inhalation risk A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m3, as TWA
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