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Potassium Chlorate, Laboratory Grade, 2 kg

Flinn Chemicals, etc.
Catalog Number
Potassium Chlorate, Laboratory Grade, 2 kg
Product Description

Laboratory grade
F.W. 122.56

HAZARD ALERT: Strong oxidizer; slightly toxic; irritant. LD50 1870 mg/kg. Extremely dangerous since the substance, if only slightly contaminated, will explode when exposed to moderate shock or when heated. Because this substance is so frequently a source of accidents on school premises we have elected to list some of the incompatible substances which should be avoided:
Ammonium Salts Phosphorus
Carbon Sulfuric Acid
Combustible Material Metal Powders
Finely Divided Materials Organic Materials
Sulfur Sugar

SPECIAL HAZARD ALERT: Only pure manganese dioxide (manganese(IV) oxide) should be used with potassium chlorate for oxygen preparation. A safer method is the catalytic decomposition of hydrogen peroxide. You will find this method recited in detail under the oxygen gas listing (Flinn Catalog Nos. LB1025, LB1080).
Storage: Inorganic #6
Disposal: #12a
Shelf Life: Indefinite if stored safely.
Soluble: Boiling water.
Color: White
Odor: None
CAS No. 3811-04-9
Technical Note: Potassium Chlorate as an O2 Source: Molar volume is frequently measured by generating O2 using potassium chlorate and manganese dioxide. Molten KClO3 is a powerful oxidizer of organic materials like the rubber in the stoppers used in the generating apparatus. Explosions can and do result. Please call or e-mail us to obtain a free copy of Chem Fax No. 1001, which describes a safe method involving the use of dry ice to measure molar volume.


Additional Resources
Flinn Catalog/Reference Manual Page 120
Flinn Middle School Catalog/Reference Manual Page 71

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