Ammonium Heptamolybdate

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Ammonium Molybdate

ammonium heptamolybdateProduct Introduction：

Colorless or light yellow green columnar crystals. Dissolved in 2.3 parts of water, insoluble in ethanol, decomposes upon contact with acid. When heated to 90 ℃, one molecule of crystal water is lost, and when heated to 190 ℃, it decomposes. The pH value of a 5% aqueous solution is 5.0-5.5. The relative density is 2.498.

ammonium heptamolybdate Preparation:

Mix the crushed industrial product molybdenum trioxide, water, and ammonia solution to dissolve them. Filter and wash insoluble substances with ammonia water. Add ammonium sulfide solution to the filtrate, heat and filter. When evaporating and concentrating to a relative density of 141, add ammonia water and stir continuously until there is a strong ammonia smell. Cool and filter to obtain pure ammonium molybdate.

ammonium heptamolybdate Purpose:

Used as a reagent for determining phosphates, nickel, germanium, selenium dioxide, arsenates, alkaloids, and lead. Reagents for chromatographic analysis. Used as a catalyst in the petroleum industry, it is also an industrial raw material for powder metallurgy of molybdenum, photography, ceramic glazes, and pigments.

Risk term R22- Harmful if swallowed.

R36/38- Irritation to eyes and skin.

R52/53 -

R36/37/38- Irritation to eyes, respiratory system, and skin.

Safety Terminology S26- In case of accidental contact with eyes, immediately rinse with plenty of water and seek medical advice.

S36- Wear appropriate protective clothing.

Dangerous goods transport number: UN 3264

Customs code: 28417010

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