SDS Library

Corrosive bleach (12.5% sodium hypochlorite). The big danger is mixing it with acid, which makes toxic chlorine gas. Wear goggles and gloves, pour into deep water, keep the jug vented and out of the sun.

Strong acid (hydrochloric acid). Burns skin and eyes and gives off harsh fumes. Never let it touch chlorine. Always add acid to water, pour into the deep end, and keep the cap tight.

Concentrated stabilized chlorine tablet and strong oxidizer. Fatal if inhaled and dangerous when wet. Keep it dry and sealed, never mix it with any other chlorine or acid, and use a dedicated dry scoop. (1 inch tabs share this sheet.)

Fast-dissolving stabilized chlorine shock and strong oxidizer. Fatal if inhaled and dangerous when wet. Keep dry and sealed, broadcast into deep water, and never mix with trichlor or liquid chlorine.

Raises pH. Main risk is the dust, which is toxic to breathe and irritates eyes. Pour low and slow to avoid dust, wear glasses and a dust mask, and keep it away from acid.

Plain baking soda used to raise alkalinity. Not classified as hazardous. The only real nuisance is dust, so avoid breathing it and keep it away from acid.

Conditioner that keeps chlorine from burning off in sunlight. Mild irritant. Avoid the dust, add it through the skimmer, and store it away from chlorine products.