Some typical oxidizers by NFPA classification

OXIDIZING AGENTS BY

NFPA CLASSIFICATION

DOE-HDBK-1081-94

Spontaneous Heating and Pyrophoricity

Some typical oxidizers by NFPA classification.a

Class 1 (continued)

Class 1

All Inorganic nitrates (unless otherwise classified)

Potassium dichromate

All Inorganic nitrites (unless otherwise classified)

Potassium percarbonate

Ammonium persulfate

Potassium persulfate

Barium peroxide

Sodium carbonate peroxide

Calcium peroxide

Sodium dichloro-s-triazinetrione dihydrate

Hydrogen peroxide solutions (greater than 8 percent up to 27.5

Sodium dichromate

percent)

Sodium perborate (anhydrous)

Lead dioxide

Sodium perborate monohydrate

Lithium Hypochlorite (39 percent or less available chlorine)

Sodium perborate tetrahydrate

Sodium percarbonate

Lithium peroxide

Sodium persulfate

Magnesium peroxide

Strontium peroxide

Manganese dioxide

Zinc peroxide

Nitric acid (40 percent concentration or less)

Perchloric acid solutions (less than 50 percent by weight)

Class 2

Class 2 (continued)

Barium bromate

Mercurous chlorate

Barium chlorate

Nitric acid (more than 40 percent but less than 86 percent)

Barium hypochlorite

Barium perchlorate

Perchloric acid solutions (more than 50 percent but less than

Barium permanganate

60 percent)

1-Bromo-3-chloro-5,5-dimenthylhydantoin

Potassium perchlorate

Calcium chlorate

Potassium permanganate

Calcium chlorite

Potassium peroxide

Calcium hypochlorite (50 percent or less by weight)

Potassium superoxide

Calcium perchlorate

Silver peroxide

Calcium permanganate

Sodium chlorite (40 percent or less by weight)

Chromium trioxide (Chromic acid)

Sodium perchlorate

Copper chlorate

Sodium perchlorate monohydrate

Halane (1,3-Dichloro-5,5-dimenthylhydantoin)

Sodium permanganate

Hydrogen peroxide (greater than 27.5 percent up to 52 percent)

Sodium peroxide

Strontium chlorate

Lead perchlorate

Strontium perchlorate

Lithium chlorate

Strontium peroxide

Lithium hypochlorite (more than 39 percent available chlorine)

Thallium chlorate

Trichloro-s-triazinetrione (Trichloroisocyanuric acid)

Lithium perchlorate

Urea hydrogen peroxide

Magnesium bromate

Zinc bromate

Magnesium chlorate

Zinc chlorate

Magnesium perchlorate

Zinc permanganate

a. NFPA 43A-1980, Code for the Storage of Liquid and Solid Oxidizing Materials.

Pyrophoricity

Page B-4

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