SDS

Guardian Chlorinating Granules (47%) Page 5
Calcium Hydroxide 1305-62-0 OSHA Z1 5 mg/m3 TWA respirable fraction
Calcium Carbonate 471-34-1 OSHA Z1 15 mg/m3 TWA total dust
Calcium Carbonate 471-34-1 OSHA Z1 5 mg/m3 TWA respirable dust fraction
*ARCH-ROEG: Arch Recommended Occupational Exposure Guideline.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Form: Granules
Color: White to off-white
Odor: Chlorine-like
Molecular Weight: 143.00 gm
Specific Gravity: Not applicable
pH: 10.0 – 10.8 (10 g/l as aqueous solution)
Boiling Point: Not applicable
Freezing Point: Not Applicable
Melting Point: Not Applicable
Density: 0.8 g/cm3
Bulk Density: Not Applicable
Vapor Pressure: Not Applicable
Vapor Density: Not Applicable
Viscosity: Not Applicable
Solubility in Water: 180 g/l @ 25
o
C
Partition Coefficient: Noctanol/water - Not Applicalbe
Evaporation Rate: Not Applicable
Oxidizing: None Established
Volatiles, % by vol.: Not Applicable
VOC Content: Not Applicable
HAP Content: Not Applicable
10. STABILITY AND REACTIVITY
Stability and Reactivity Summary: Product is not sensitive to mechanical shock or impact. Product is
not sensitive to electrical static discharge. Product will not undergo hazardous polymerization.
Product is an NFPA Class I Oxidizer. Not pyrophoric. Not an organic peroxide. If subjected to
excessive temperatures, the product may undergo rapid decomposition, evolution of chlorine gas,
and heat sufficient to ignite combustible substances. If product is exposed to small amounts of water,
it can react violently to produce heat and toxic gases and spatter. Use copious amounts of water for
fires involving this product.
Conditions to Avoid: Do not store next to heat source, in direct sunlight, or elevated storage
temperature. Do not store where the daily average temperature exceeds 95
o
F. Prevent ingress of
humidity and moisture into container or package. Always close the lid.
Chemical Incompatibility: This product is chemically reactive with many substances, including e.g.
other pool treatment products, acids, organics, (containing mono-ammonium phosphate), oxidizers,
corrosive, flammable or combustible materials. Do not allow product to contact any foreign matter,
including other water treatment products. Contamination or improper use may cause a fire, explosion
or the release of toxic gases. If product is exposed to small amounts of water, it can react violently to
produce heat and toxic gases and spatter.