• Unstabilized chlorine — adds no cyanuric acid to the pool
• Readily soluble and fast acting
• Used as a shock treatment to control bacteria and algae

The information below is reproduced from the manufacturer’s Safety Data Sheet (GHS, revision dated 1 January 2024). Read the product label before use.

Hazard Statements

• H272 May intensify fire; oxidizer.
• H302 Harmful if swallowed.
• H314 Causes severe skin burns and eye damage.
• H318 Causes serious eye damage.
• H335 May cause respiratory irritation.
• H410 Very toxic to aquatic life with long lasting effects.

Personal Protective Equipment

• Hands: chemical-resistant, impervious gloves complying with an approved standard — nitrile, neoprene or butyl rubber.
• Eyes: chemical splash goggles and face shield.
• Body: suitable protective clothing selected for the task and the risks involved.
• Feet: appropriate protective footwear to prevent exposure.
• Respiratory: workers exposed above the exposure limit must use appropriate, certified respirators.

Safe Handling

Use extreme caution in handling spilled material. Use only with adequate ventilation. Keep away from combustible material. Strong oxidizer — contact with other material may cause fire. Do not mix this product with any other chemicals, including any other pool chemicals of any kind, such as other disinfection or "shock" pool products. Contamination with moisture, acids, organic matter, other chemicals, petroleum or paint products or other easily combustible materials may start a chemical reaction with generation of heat, liberation of hazardous gases and possible violent reaction leading to fire or explosion. Always add product to large quantities of water to fully dissolve product; do not pour water into product. Use only a clean, dry scoop each time product is taken from the container. Do not use with stabilized chlorine or bromine tablet chemical feeders.

Storage

Ventilate enclosed areas. Keep only in the original container. Keep the container closed. Separate from acids, alkalis, reducing agents and combustibles. The product is an NFPA Class 3 oxidizer which can cause a severe increase in fire intensity. Store in a cool, dry, well-ventilated place. If product becomes contaminated or decomposes, do not reseal the container; if possible isolate the container in open air or a well-ventilated area.

Incompatible Materials

Highly reactive or incompatible with moisture, combustible materials, organic materials, metals, acids, alkalis, oxidizing materials, reducing materials, ammonia, petroleum products, paint products, wood and paper, and pool chemicals. Acid or ammonia contamination will release toxic gases.

First Aid

In case of exposure, follow the first-aid directions on the product label and the Safety Data Sheet. In Canada, call CANUTEC at (613) 996-6666 for a transport emergency, or contact a poison centre or doctor.