Basic Information of Sodium Selenite Pentahydrate
- Product Name (English): Sodium Selenite Pentahydrate
- English aliases: Disodium selenite pentahydrate, Sodium selenite(IV) pentahydrate
- Industry Abbreviations: Na2SeO3·5H2O
- Other language names: Sélénite de sodium pentahydraté (French), Natriumselenit-Pentahydrat (German), Selenito de sodio(IV) pentahidrato(Spanish),Селенит натрия(IV) пентагидрат(Russian),셀레늄산나트륨(IV) 오수화물(Korean),سيليينيت الصوديوم (IV) بنتاهايدراط (Arabic)
- CAS number: 26970-82-1
- EINECS number: 248-159-4
- UN number: 2630
- Hazard class: 6.1 (Toxic substances)
- Molecular formula: Na2SeO3·5H2O
- molecular weight: 263.01 g/mol
- Product Grade: Food grade, Feed grade, Industrial grade, Analytical reagent (AR)
- Main uses: Selenium supplement in animal feed, selenium-enriched fertilizer additive, pharmaceutical intermediate, chemical reagent
Physicochemical Properties of Sodium Selenite Pentahydrate
- Appearance and smell: Colorless crystalline powder, odorless
- Solubility: Highly soluble in water, insoluble in ethanol, acetone
- Boiling point: Loses water at 100 °C, decomposes at 885 °C
- Melting point: 40 °C (loses crystallization water)
- Density: 1.86 g/cm³
- Moisture absorption: Hygroscopic, easy to absorb moisture from air
- Purity: 98% min (industrial grade), 99.5% min (feed grade);Selenium content: ≥29.7%
- Toxicity: Highly toxic if swallowed or inhaled
- Stability: Stable under normal conditions, strong oxidizing agent; avoid moisture and heat
- Particle size: 80-120 mesh (standard)
Supplementary Technical Details for Sodium Selenite Pentahydrate
- Production methods: Crystallization method from sodium selenite aqueous solution
- Acute toxicity (LD50): 30 mg/kg (oral, rat)
- Chronic toxicity: Excessive selenium intake may cause selenosis
- Upstream and downstream products (raw materials): Sodium selenite, water, selenous acid
- Upstream and downstream products (downstream): Feed additives, fertilizers, pharmaceuticals
- Quality Standards: GB 29404-2012 (modified), Enterprise standard
- Detection methods: Atomic absorption spectrometry, spectrophotometry
- Transportation methods: Road transport, sea transport (complies with IMDG code)
- Payment methods: T/T, L/C, Western Union
Packaging and Storage of Sodium Selenite Pentahydrate
- Packaging: 1 kg aluminum foil bags, 25 kg fiber drums with plastic liners
- Storage: Store in cool, dry, well-ventilated warehouse; keep away from food, feed and moisture
- Shelf Life: 24 months when stored properly in sealed packaging
- CAS number: 26970-82-1
- Molecular formula: Na2SeO3·5H2O
- molecular weight: 263.01 g/mol
- Implementation Standards: GB 29404-2012 (modified), FCC VI
- Precautions: Strictly control dosage; wear protective equipment; avoid contact with reducing agents
- After-sales service: Quality certification, technical consultation, safety data sheet (SDS)
Applications of Sodium Selenite Pentahydrate
Food Sector
- Food-grade Sodium Selenite Pentahydrate can be added in appropriate amounts as an additive to specific categories of products such as flour, rice, milk powder, table salt, and oral solutions.It is used to supplement the body’s deficiency of the trace element selenium.
- Feed-grade Sodium Selenite Pentahydrate, as an essential additive, is uniformly mixed into animal feed through a scientifically formulated blending process.It can used to prevent selenium deficiency in livestock, poultry, and aquatic animals, thus ensuring animal health.
- Sodium Selenite Pentahydrate is a raw material that can be used in the production of “selenium-enriched agricultural products.”Sodium Selenite Pentahydrate can be absorbed by crops through foliar spraying or root irrigation.Produce agricultural products with added value.
Industrial Sector
- Industrial-grade Sodium Selenite Pentahydrate can be used as a biological reagent, for example, in the detection of alkaloids and in seed germination tests.
- Industrial-grade Sodium Selenite Pentahydrate is used as a raw material or functional additive in industries such as electrolytic manganese production, glass manufacturing, and electroplating, or provides a source of selenium for other selenium compounds.
Pharmaceutical Field
- Pharmaceutical-grade Sodium Selenite Pentahydrate possesses pharmacological effects including antioxidant, anti-inflammatory, and antitumor properties.It has significant research value in the treatment and prevention of certain diseases.
- High-purity, pharmaceutical-grade Sodium Selenite Pentahydrate can be used to prepare selenium-containing drugs for the treatment of selenium deficiency diseases (such as Keshan disease).
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