The density is constant at 2.37g/mL (25℃), the melting point of the anhydrous form is approximately 687℃, and the thermal decomposition temperature is clear (100℃). Both solubility and thermal stability have clear parameter boundaries, facilitating precise control of process conditions in industrial production.
Although it has certain irritancy (eye irritation category 2B), risks can be completely avoided through standardized protection (such as wearing nitrile rubber gloves and protective goggles). Acute toxicity data is clear (rat intraperitoneal LD50 = 520mg/kg), with no uncontrollable toxicological hazards. It is non-flammable and non-explosive, ensuring high safety in application scenarios.
Basic industrial products are prepared by the liquid caustic extraction method, with purity meeting conventional chemical needs; high-purity products can be purified through the "acid precipitation-sublimation-recrystallization" process, adapting to scenarios with strict purity requirements such as reagents and electronic materials, covering low to high purity demands.
Sodium molybdate dihydrate (chemical name: disodium molybdate dihydrate) is a kind of lustrous colorless rhombic plate-like crystals or white powder. Its core chemical composition is H₄MoNa₂O₆, containing 2 crystal water molecules, with the international CAS number 10102-40-6 and a molecular weight of 241.948.
This product exhibits excellent chemical stability under normal temperature and pressure, and only decomposes at 100℃ to lose crystal water, converting into anhydrous sodium molybdate. It is easily soluble in water (solubility reaches 56g/100mL at 0℃ and increases to 45.57% at 100℃) but insoluble in acetone. Attention should be paid to moisture protection in powder form—after absorbing moisture, it can be reused after simple sieving, offering high operational convenience.
This product is classified as non-hazardous goods, with no UN number (United Nations dangerous goods number). It can be transported by conventional means such as road, railway, sea, and air, without the need for special transportation qualifications.
Sealed packaging (such as cardboard drums or plastic drums lined with polyethylene) should be used during transportation to prevent powder leakage due to packaging damage. Meanwhile, it should not be mixed with strong oxidants to avoid chemical reactions. The transportation environment should be moisture-proof to prevent product caking caused by rain or moisture intrusion.
After arrival, the product should be promptly transferred to a ventilated and dry warehouse for storage. Check the integrity of the packaging upon unpacking. If moisture absorption or caking is found, it can be used normally after sieving, without affecting product performance.
As a core chemical raw material, it can be used to manufacture special reagents for alkaloids and inks, and also serves as an efficient catalyst in chemical reactions. It can also act as the basic matrix for molybdate synthesis, providing stable raw materials for downstream molybdenum-based chemical production.
- Pigment industry: Used in the production of molybdenum red pigments and lightfast lake precipitants. The prepared pigments have strong color stability and excellent light resistance, suitable for outdoor coatings, plastic coloring, and other scenarios.
- Metal protection: As a pollution-free metal corrosion inhibitor for cooling water systems, it can effectively reduce the corrosion rate of pipelines and equipment without environmental pollution risks, replacing traditional toxic inhibitors.
- Flame-retardant materials: It is a key raw material for environmentally friendly flame retardants, which can improve the flame retardant grade of plastics, rubber, and other materials, meeting the low-toxicity and low-smoke requirements of modern materials.
As an essential micronutrient for animals and plants, it can be added to chemical fertilizers to supplement molybdenum elements required for crop growth, enhancing crop stress resistance and yield. It is also used as a feed additive to ensure the metabolic balance of livestock and poultry.
The density is constant at 2.37g/mL (25℃), the melting point of the anhydrous form is approximately 687℃, and the thermal decomposition temperature is clear (100℃). Both solubility and thermal stability have clear parameter boundaries, facilitating precise control of process conditions in industrial production.
Although it has certain irritancy (eye irritation category 2B), risks can be completely avoided through standardized protection (such as wearing nitrile rubber gloves and protective goggles). Acute toxicity data is clear (rat intraperitoneal LD50 = 520mg/kg), with no uncontrollable toxicological hazards. It is non-flammable and non-explosive, ensuring high safety in application scenarios.
Basic industrial products are prepared by the liquid caustic extraction method, with purity meeting conventional chemical needs; high-purity products can be purified through the "acid precipitation-sublimation-recrystallization" process, adapting to scenarios with strict purity requirements such as reagents and electronic materials, covering low to high purity demands.
Sodium molybdate dihydrate (chemical name: disodium molybdate dihydrate) is a kind of lustrous colorless rhombic plate-like crystals or white powder. Its core chemical composition is H₄MoNa₂O₆, containing 2 crystal water molecules, with the international CAS number 10102-40-6 and a molecular weight of 241.948.
This product exhibits excellent chemical stability under normal temperature and pressure, and only decomposes at 100℃ to lose crystal water, converting into anhydrous sodium molybdate. It is easily soluble in water (solubility reaches 56g/100mL at 0℃ and increases to 45.57% at 100℃) but insoluble in acetone. Attention should be paid to moisture protection in powder form—after absorbing moisture, it can be reused after simple sieving, offering high operational convenience.
This product is classified as non-hazardous goods, with no UN number (United Nations dangerous goods number). It can be transported by conventional means such as road, railway, sea, and air, without the need for special transportation qualifications.
Sealed packaging (such as cardboard drums or plastic drums lined with polyethylene) should be used during transportation to prevent powder leakage due to packaging damage. Meanwhile, it should not be mixed with strong oxidants to avoid chemical reactions. The transportation environment should be moisture-proof to prevent product caking caused by rain or moisture intrusion.
After arrival, the product should be promptly transferred to a ventilated and dry warehouse for storage. Check the integrity of the packaging upon unpacking. If moisture absorption or caking is found, it can be used normally after sieving, without affecting product performance.
As a core chemical raw material, it can be used to manufacture special reagents for alkaloids and inks, and also serves as an efficient catalyst in chemical reactions. It can also act as the basic matrix for molybdate synthesis, providing stable raw materials for downstream molybdenum-based chemical production.
- Pigment industry: Used in the production of molybdenum red pigments and lightfast lake precipitants. The prepared pigments have strong color stability and excellent light resistance, suitable for outdoor coatings, plastic coloring, and other scenarios.
- Metal protection: As a pollution-free metal corrosion inhibitor for cooling water systems, it can effectively reduce the corrosion rate of pipelines and equipment without environmental pollution risks, replacing traditional toxic inhibitors.
- Flame-retardant materials: It is a key raw material for environmentally friendly flame retardants, which can improve the flame retardant grade of plastics, rubber, and other materials, meeting the low-toxicity and low-smoke requirements of modern materials.
As an essential micronutrient for animals and plants, it can be added to chemical fertilizers to supplement molybdenum elements required for crop growth, enhancing crop stress resistance and yield. It is also used as a feed additive to ensure the metabolic balance of livestock and poultry.
