Ammonium molybdate tetrahydrate manufacturers and suppliers

Ammonium molybdate tetrahydrate suppliers

Properties

Melting point:: 190 °C

Boiling point:: 190°C

Density: 2.498 g/mL at 25 °C (lit.)

storage temp.: Inert atmosphere,Room Temperature

solubility: H₂O: 0.05 M at 20 °C, clear, colorless

form: Solid

color: White to yellow-green

PH: 4.0-5.5 (25℃, 0.05M in H2O)

Odor: Odorless

PH Range: 5 - 5.5

Water Solubility: 400 g/L (20 ºC)

Merck: 14,533

Exposure limits: ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 1000 mg/m3

Stability:: Stable. Incompatible with strong acids, strong oxidizing agents.

Safety Information

Symbol(GHS): GHS07

Signal word: Warning

Hazard statements: H315-H319-H335

Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Hazard Codes: Xi,Xn

Risk Statements: 36/37/38-22-20/21/22

Safety Statements: 26-37/39-36/37-36

RIDADR: 3288

WGK Germany: 1

RTECS: QA5076000

TSCA: Yes

HS Code: 28417000

Use

Ammonium molybdate tetrahydrate (also referred to as Ammonium heptamolybdate, chemical formula: (NH4)6Mo7O24)), appearing as a colorless solid. It can be manufactured through dissolving the molybdenum trioxide in excess amount of aqueous ammonia and evaporating the solution at the room temperature. It has many applications, e.g. as an analytic reagent for measuring content of phosphates, silicates, arsenates and lead; for the production of molybdenum metal and ceramics; for the production of dehydrogenation and desulphurization catalysts; for the fixing of metals; for electroplating; supplement in the crop fertilizer; as a negative stain in biological electron microscopy; as an analgesic in medical fields.

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