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Chemical Hygiene Plan - Queensborough Community College ...

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APPENDIX C: PEROXIDIZABLE CHEMICALS LIST<br />

Class 1 (High Probability of Peroxide Formation)<br />

• <strong>Chemical</strong> Name<br />

• Isopropyl Ether<br />

• Divinyl Acetylene<br />

• Vinylidene Chloride<br />

• Potassium metal<br />

• Sodium amide<br />

• Recommended<br />

storage time or<br />

retest schedule<br />

• 3 months<br />

• 3 months<br />

• 3 months<br />

• 3 months<br />

• 3 months<br />

Class 2 (Moderate Probability of Peroxide Formation)<br />

Ethyl Ether<br />

Tetrahydrofuran<br />

Dioxane<br />

Acetal<br />

Methyl isobutyl ketone<br />

Ethylene glycol dimethy ether<br />

Vinyl ether<br />

Dicyclopentadiene<br />

Diacetylene<br />

Methyl acetylene<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

6 months<br />

Cumene<br />

6 months<br />

Tetrahydronaphthalene<br />

6 months<br />

Cyclohexene<br />

6 months<br />

Methyl Cyclpentane<br />

6 months<br />

2 Propanol 6 months<br />

Iso butanol<br />

6 months<br />

Class 3 (Hazard due to Peroxide Initiation of Polymerization)<br />

Styrene<br />

Butadiene<br />

Tetrafluroethylene<br />

Chlorotrifluroethylene<br />

Vinyl Acetylene<br />

Vinyl Acetate<br />

Vinyl Chloride<br />

Vinyl Pyridine<br />

Chlorobutadiene<br />

12 months<br />

12 months<br />

12 months<br />

12 months<br />

12 months<br />

12 months<br />

12 months<br />

12 months<br />

12 monhs<br />

165

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