METAL CHLORATES

Metal chlorates Lead dioxide Metallic permanganates Metallic dichromates Nitric acid (concentrated)... 

The modes of thermal decomposition of the halates and their complex oxidation-reduction chemistry reflect the interplay of both thermodynamic and kinetic factors. On the one hand, thermodynamically feasible reactions may be sluggish, whilst, on the other, traces of catalyst may radically alter the course of the reaction. In general, for a given cation, thermal stability decreases in the sequence iodate > chlorate > bromate, but the mode and ease of decomposition can be substantially modified. For example, alkali metal chlorates decompose by disproportionation when fused ... 

Calcium chlorate reacts dangerously as do metal chlorates. This occurs with interactions of this compound with carbon, aluminium, metal sulphides, sulphur and phosphorus. 

Oxidants more concentrated than air are of greater hazard potxential, and the extent of involvement of the common oxidants Perchloric acid Chlorine Nitric acid Hydrogen peroxide Sulfuric acid METAL CHLORATES... 

MRH values for 17 combinations, largely with oxidisable materials, are given. See Other METAL CHLORATES, SILVER COMPOUNDS... 

See metal chlorates phosphorus, etc. also Chloric acid Metal sulfides... 

In contact with oxidisable materials, reactions are similar to those of the metal chlorates. 

See entry metal chlorates See other oxohalogen acids... 

See METAL CHLORATES ACIDS, ALSO METAL HALOGENATES METALS, ETC. 

Contact with fluorine leads to ignition, and interaction with metal chlorates or oxides is violent. 

See Metal chlorates, above Oxygen, etc., below Barium peroxide Selenium Bromine pentafluoride Acids, etc. 

In addition to being oxidants in contact with strong acids, metal chlorates liberate explosive chlorine dioxide gas. With cone, sulfuric acid, a violent explosion may occur unless effective cooling is used [1], Heating a moist mixture of a metal chlorate and a dibasic organic acid (tartaric or citric acid) liberates chlorine dioxide diluted with carbon dioxide [2],... 

Several members of this (often endothermic) group of compounds which contain heavy metals tend to explosive instability, and most are capable of violent oxidation under appropriate circumstances. Fusion of mixtures of metal cyanides with metal chlorates, perchlorates, nitrates or nitrites causes a violent explosion [1], Addition of one solid component (even as a residue in small amount) to another molten component is also highly dangerous [2], Individually indexed compounds are ... 

Fire or explosion hazard may arise from the foUowing ammonia reactions Reaction with halogens produces nitrogen trihahdes which explode on heating its mixture with fluorine bursts into flame reacts with gold, silver, or mercury to form unstable fulminate-type shock-sensitive compounds similarly, shock-sensitive nitrides are formed when ammonia reacts with sulfur or certain metal chlorides, such as mercuric, or silver chloride liquid ammonia reacts violently with alkah metal chlorates and ferricyanides. 

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