Sodium Molybdate Dihydrate
Products Description of Sodium molybdate dihydrate CAS#10102-40-6
This substance appears as white crystalline powder or colorless crystals. It dissolves well in water, with a solubility of approximately 39 g per 100 mL of water at 25°C, and its aqueous solution is weakly alkaline—typically with a pH between 9 and 10. It is stable at room temperature; when heated above 100°C, it loses its crystalline water and forms anhydrous sodium molybdate (chemical formula: Na₂MoO₄, CAS No.: 7631-95-0). When reacting with strong acids, it produces a molybdic acid (H₂MoO₄) precipitate.
Parameters
Melting point | 100 °C (dec.)(lit.) |
bulk density | 1000-1400kg/m3 |
density | 2.37 g/mL at 25 °C |
storage temp. | Store at +5°C to +30°C. |
solubility | 840g/l |
form | Solid |
Specific Gravity | 3.28 |
color | White |
PH | 9-10 (840g/l, H2O, 20℃) |
Water Solubility | 56 g/100 mL (O ºC) |
Merck | 14,8645 |
Exposure limits | ACGIH: TWA 0.5 mg/m3 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
CAS DataBase Reference | 10102-40-6(CAS DataBase Reference) |
EPA Substance Registry System | Sodium molybdate(VI) dihydrate (10102-40-6) |
Safety Information
Hazard Codes | Xi,Xn |
Risk Statements | 36/37/38-20/21/22 |
Safety Statements | 24/25-36-26 |
WGK Germany | 1 |
RTECS | QA5085000 |
TSCA | Yes |
HS Code | 28417000 |
Toxicity | LD50 orally in Rabbit: 4233 mg/kg LD50 dermal Rat > 2000 mg/kg |
Product Application of Sodium molybdate dihydrate CAS#10102-40-6
Sodium molybdate dihydrate (CAS No. 10102-40-6) is widely used across industry, pharmaceuticals, electronics, and analytical chemistry. In industry, it acts as a corrosion inhibitor for circulating water, a metal phosphating treatment agent, and a chemical catalyst. In the pharmaceutical industry, it serves as a pharmaceutical intermediate and a reagent for enzyme activity research. In the electronics industry, it is used to manufacture components like semiconductor films. In analytical chemistry, it functions as a chromogenic agent for detecting heavy metal ions. When using it, it must be stored in a sealed container to avoid contact with strong acids, and proper protective measures should be taken.
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