Basic Information of Sodium Selenate
- Product Name (English): Sodium Selenate
- English aliases: Disodium selenate, Sodium selenate(VI)
- Industry Abbreviations: Na2SeO4
- Other language names: Sélénate de sodium (French), Natriumselenat(VI) (German),Селенат натрия(VI)(Russian),셀레늄산나트륨(VI)(Korean),سيليينات الصوديوم (VI)(Arabic)
- CAS number: 13410-01-0
- EINECS number: 236-501-8
- UN number: 2630
- Hazard class: 6.1 (Toxic substances)
- Molecular formula: Na2SeO4
- Molecular weight: 188.94 g/mol
- Product Grade: Industrial grade, Feed grade, Analytical reagent (AR)
- Main uses: Selenium supplement in animal feed, fertilizer additive, glass industry, analytical reagent, catalyst
Physicochemical Properties of Sodium Selenate
- Appearance and smell: White crystalline powder or colorless crystals, odorless
- Solubility: Soluble in water, insoluble in ethanol, acetone
- Boiling point: Decomposes at 884 °C
- Melting point: 884 °C
- Density: 3.213 g/cm³
- Moisture absorption: Slightly hygroscopic
- Purity: 98% min (industrial grade), 99.5% min (feed grade)；Selenium content: ≥42%
- Toxicity: Highly toxic if swallowed or inhaled
- Stability: Stable under normal conditions, oxidizing agent
- Particle size: 80-120 mesh
Supplementary Technical Details for Sodium Selenate
- Production methods: Oxidation of sodium selenite, neutralization of selenic acid with sodium hydroxide
- Acute toxicity (LD50): 2 mg/kg (oral, rat)
- Chronic toxicity: Excessive selenium intake may cause selenosis
- Upstream and downstream products (raw materials): Sodium selenite, selenic acid, sodium hydroxide
- Upstream and downstream products (downstream): Feed additives, fertilizers, glass products
- Quality Standards: Enterprise standard, GB/T 22480-2008 (modified)
- Detection methods: Atomic absorption spectrometry, spectrophotometry
- Transportation methods: Road transport, sea transport (complies with IMDG code)
- Payment methods: T/T, L/C
Packaging and Storage of Sodium Selenate
- Packaging: 25 kg fiber drums with plastic liners
- Storage: Store in cool, dry, well-ventilated warehouse; keep away from food and feed
- Shelf Life: 24 months when stored properly
- CAS number: 13410-01-0
- Molecular formula: Na2SeO4
- Molecular weight: 188.94 g/mol
- Implementation Standards: Enterprise standard, GB/T 22480-2008 (modified)
- Precautions: Avoid direct contact; use in well-ventilated environment
- After-sales service: Technical support, quality guarantee
Applications of Sodium Selenate
Agricultural Sector
Sodium Selenite, as a fertilizer additive, can supplement crops with selenium through methods such as spraying, thus improving selenium deficiency in humans and livestock in an indirect way.
Animal Feed Industry
Feed-grade Sodium Selenite is added to livestock and poultry feed as a selenium supplement, helping to improve animal growth performance, reproductive capacity, and disease resistance.However, the amount of Sodium Selenite added must be strictly controlled, and it needs to be prepared into a very low-concentration premix feed before use to ensure uniform mixing in subsequent steps.
Industrial Sector
- Industrial-grade Sodium Selenite can be used as a decolorizing agent in glass production, eliminating discoloration in glass products.Additionally, when selenium combines with cadmium compounds to form cadmium selenide, it can impart a red hue to glass.
- Industrial-grade Sodium Selenate is one of the sources of selenium used in the preparation of certain selenide catalysts.It is used in various catalytic reactions in chemical production, such as hydrogenation and dehydrogenation.
- Electronic-grade Sodium Selenite can be used as one of the selenium sources for preparing selenide semiconductor materials.These semiconductor materials can be used in the manufacture of optoelectronic devices.
Analytical Reagents
- High-purity Sodium Selenate can be used as a standard solution of selenium in the laboratory to calibrate instruments or validate analytical methods, in order to determine the total selenium content in samples.
- High-purity Sodium Selenate can be used in research on the synthesis of specific materials.
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