Sodium Molybdate Dihydrate CAS#10102-40-6

High Water SolubilityWhite crystalline powder or colorless crystals dissolve effectively in water, with a solubility of about 39 g/100 mL at 25°C.


Mild AlkalinityThe aqueous solution is weakly alkaline, with a pH of approximately 9–10, suitable for various chemical applications.


Thermal StabilityStable at room temperature, retaining its crystalline structure under normal conditions.


Chemical ReactivityReacts with strong acids to form molybdic acid (H₂MoO₄) and can transform into anhydrous sodium molybdate (Na₂MoO₄) upon heating above 100°C, enabling diverse industrial and chemical uses.

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Product Description

Product Description of Sodium Molybdate Dihydrate CAS#10102-40-6

Sodium Molybdate Dihydrate is a white crystalline powder or colorless crystal, highly soluble in water with solubility of about 39 g/100 mL at 25°C. Its aqueous solution is weakly alkaline with pH ranging from 9 to 10. It remains stable at room temperature. When heated above 100°C, it gradually loses crystal water to form anhydrous sodium molybdate (Na₂MoO₄, CAS 7631-95-0). It reacts with strong acids to generate molybdic acid (H₂MoO₄) precipitate.


Product Application of Sodium Molybdate Dihydrate CAS#10102-40-6

Sodium Molybdate Dihydrate (CAS 10102-40-6) has broad application prospects. Industrially, it is used as a circulating water corrosion inhibitor, metal phosphating agent and chemical catalyst. In the pharmaceutical field, it acts as a chemical intermediate and a reagent for enzyme research. In the electronics industry, it is applied to the preparation of semiconductor films and other components. In analytical chemistry, it serves as a chromogenic agent for the detection of heavy metal ions. For storage and handling, it should be kept in a sealed container and kept away from strong acids, with relevant protective measures properly taken.

Product Information

Parameters


Melting point100 °C (dec.)(lit.)
bulk density1000-1400kg/m3
density2.37 g/mL at 25 °C
storage temp.Store at +5°C to +30°C.
solubility840g/l
formSolid
Specific Gravity3.28
colorWhite
PH9-10 (840g/l, H2O, 20℃)
Water Solubility56 g/100 mL (O ºC)
Merck148,645
Exposure limitsACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 1000 mg/m3
Stability:Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference10102-40-6(CAS DataBase Reference)
EPA Substance Registry SystemSodium molybdate(VI) dihydrate (10102-40-6)
Hazard CodesXi,Xn
Risk Statements36/37/38-20/21/22
Safety Statements24/25-36-26
WGK Germany1
RTECSQA5085000
TSCAYes
HS Code28417000
ToxicityLD50 orally in Rabbit: 4233 mg/kg LD50 dermal Rat > 2000 mg/kg


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