Used as reducing agent in textiles dyeing; in paper bleaching for whitening; in organic synthesis for decolorization; in photography as fixer; in leather processing.

Precautionary P201 obtain instructions, P273 avoid release to environment, P280 wear protective gear; primary hazards irritant; avoid mixing with other waste.

Containers do not contaminate water, foodstuffs, feed or seed; discharge to sewer is not allowed; handle uncleaned like product.