Page:NIOSH Manual of Analytical Methods - Chapter M.pdf/11

 Iron and compounds


 * Iron, ferrous oxide, ferric oxide, and iron oxide — Insoluble in hot and cold water.
 * Ferric chloride, ferric nitrate, ferric sulfate, ferrous sulfate and ferrous chloride — Soluble in hot and cold water.
 * Ferric chloride — Soluble in ethanol, methanol, and ether.
 * Ferric nitrate and ferrous chloride — Soluble in ethanol and acetone.
 * Ferric sulfate — Sparingly soluble in ethanol; insoluble in acetone.
 * Ferrous sulfate — Insoluble in ethanol.

Molybdenum and compounds


 * Molybdenum — Insoluble in hot or cold water; soluble in nitric, sulfuric, and hydrochloric acids.


 * Molybdic oxide — Sparingly soluble in water; soluble in acids and alkalies.
 * Molybdenum disulfide — Insoluble in hot or cold water and dilute acids; soluble in hot sulfuric acid, aqua regia, and nitric acid.


 * Ammonium molybdate — Soluble in hot or cold water, acids, and alkalies.
 * Calcium molybdate — Insoluble in cold water; soluble in hot water.
 * Lead molybdate — Insoluble in water and alcohol; soluble in acid and potassium hydroxide.
 * Sodium molybdate — Soluble in hot and cold water.

Nickel and compounds
 * Nickel — Insoluble in hot and cold water; soluble in nitric, sulfuric, and hydrochloric acids.
 * Nickel oxide — Insoluble in hot and cold water; soluble in ammonium hydroxide and acids.
 * Nickel acetate — Soluble in cold water; insoluble in alcohol;[4] soluble in alcohol.[7]
 * Nickel carbonate — Soluble in cold water; insoluble in hot water.
 * Nickel hydrates — Some forms soluble, others insoluble (in water).
 * Nickel sulfate — Soluble in hot and cold water.

Platinum and compounds


 * Platinum — Insoluble in hot or cold water and single mineral acids; soluble in aqua regia; attacked by halogens, alkali cyanides, and caustic alkalies.
 * Platinum forms are series of complex chloroplatinate salts that are water soluble.

Rhodium and compounds
 * Rhodium — Insoluble in hot or cold water; soluble in hot sulfuric acid plus hydrochloric acid; slightly soluble in acids and aqua regia.
 * Water-soluble rhodium compounds include rhodium trichloride, sodium chlororhodite, and rhodium carbonyl acetylacetonate.

Silver and compounds
 * Silver — Insoluble in water and inert to most acids; reacts readily in dilute nitric acid or hot concentrated sulfuric acid; soluble in fused alkali hydroxides in the presence of air.
 * Silver oxide — Soluble in hot and cold water, acids, and alkalies.
 * Silver acetate — Soluble in hot or cold water and nitric acid.
 * Silver bromide — Insoluble in hot or cold water and nitric acid.
 * Silver chloride — Soluble in hot water; slightly soluble in cold water and ammonium hydroxide.
 * Silver cyanide — Soluble in cold water, nitric acid, and ammonium hydroxide.