Sodium Selenite

Whatsapp Order

Sodium Selenite is an inorganic selenium compound with the formula Na₂SeO₃. In its commercial 45% concentration, it is typically supplied as a colorless to slightly yellow aqueous solution or as a crystalline solid with 45% selenium content. It is primarily used as a micronutrient additive in animal nutrition, a reagent in the pharmaceutical and glass industries, and in various research applications. Highly bioavailable, it serves as a key selenium source where controlled selenium supplementation is critical. This 25kg product offers precise dosing, stability, and ease of handling in industrial and agricultural settings.

Add to compare

Add to wishlist

Categories: Animal Feed Additives, Nutrient Supplements Tags: Agricultural use, Inorganic Selenium Compound, Na₂SeO₃, Nutraceuticals, Pharmaceutical ingredient, Sodium Selenite

Description

Table of Contents

Sodium Selenite

Primary Uses

Animal Nutrition

Feed Additive for Livestock: Provides essential selenium in poultry, swine, and cattle feed formulations.
Pet Food Fortification: Supplies trace selenium in dog and cat food.
Aquaculture Feed: Maintains optimal selenium levels in fish and shrimp diets.
Premix Manufacturing: Used in vitamin-mineral premixes for commercial feed production.

Pharmaceutical & Nutraceutical Industry

Dietary Supplements: Source of selenium in tablets, capsules, and liquid formulations.
Parenteral Nutrition: Occasionally used in injectable selenium preparations under medical supervision.
Topical Formulations (Antifungal/Skin health): Included in certain dermatological preparations for its antimicrobial properties.

Glass & Ceramics Industry

Glass Manufacturing: Acts as a decolorizing agent to neutralize green tints caused by iron.
Red-Colored Glass Production: Imparts pink or red coloration in specialty glass and enamels.

Chemical & Industrial Applications

Metal Alloy Additive: Used in specialty steels and brasses for improved machinability.
Electronics & Semiconductors: Occasionally used in selenium-containing compounds for photovoltaic or rectifier applications.
Pigments & Dyes: Trace amounts used in certain inorganic pigment formulations.

Secondary Uses

Water Treatment & Environmental Applications

Nutrient Additive in Bioremediation: Supports microbial activity in selenium-deficient remediation environments.
Trace Element Balancing in Hydroponics: Occasionally used to supplement selenium in nutrient solutions.

Laboratory & Research

Cell Culture & Biotech Research: Essential trace element in media for mammalian and microbial cultures.
Analytical Chemistry Reagent: Employed in certain redox titrations or as a selenium standard.
Toxicology & Nutrition Studies: Used in controlled studies on selenium metabolism and deficiency.

Agriculture (Plant Nutrition)

Soil Fertilizer (Micro-dose Application): In selenium-deficient regions, applied in trace amounts to increase plant selenium uptake.
Foliar Application (Very limited): Applied in diluted form to crops to enrich selenium content for human/animal consumption.

Veterinary & Animal Health

Injectable Selenium-Vitamin E Therapy: Used under veterinary supervision for selenium-responsive disorders (e.g., white muscle disease).
Mineral Licks & Blocks: Incorporated into solid supplements for grazing animals.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Disodium selenite
Common/Trade Name: Sodium Selenite
CAS Number: 10102-18-8
HS Code: 2842.90.00
Synonyms: Disodium selenite, Sodium salt of selenious acid

2. Physical & Chemical Properties

Physical State: Typically an aqueous solution or crystalline powder
Color & Odor: Colorless to pale yellow; odorless
Concentration: 45% active Sodium Selenite by weight (in solution)
Solubility: Freely soluble in water
Density (solution): ~1.45–1.50 g/cm³
pH (solution): 8.0–9.5
Molecular Weight: 172.94 g/mol (anhydrous Na₂SeO₃)

3. Safety & Hazard Attributes

GHS Classification: Acute Toxicity Oral (Category 2), Aquatic Acute (Category 1), Aquatic Chronic (Category 1)
Toxicity: LD₅₀ (oral, rat) ≈ 3.9 mg/kg
Exposure Limits: OSHA PEL: 0.2 mg Se/m³ (as selenium)
Carcinogenicity: Not classifiable (IARC Group 3); regulated due to narrow margin between essentiality and toxicity

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry, well-ventilated area; keep container tightly closed
Container Type: 25kg HDPE drums, IBCs, or lined steel drums for bulk liquid
Shelf Life: 12–24 months under recommended conditions
Handling Precautions: Avoid skin and eye contact; minimize aerosol or mist formation

5. Regulatory & Compliance Attributes

REACH Registered
Complies with:
- EU Feed Additive Register (EC No. 1831/2003)
- US FDA regulations (21 CFR 573.920 – Selenium in animal feeds)
- USP Grade Available (for pharma/nutraceutical use)
UN Number: Not classified as a dangerous good for transport in solution
TSCA Listed

6. Environmental & Health Impact

Biodegradability: Inorganic compound; not biodegradable
Ecotoxicity: Highly toxic to aquatic life
Bioaccumulation: Potential in aquatic organisms; requires controlled disposal
Soil Impact: Persistent in soil if not managed; risk of phytotoxicity at high concentrations

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Chemical-resistant gloves, safety goggles, lab coat, and dust or mist mask (as applicable)
Handling Guidelines: Use only in well-ventilated areas; avoid spills into environment
Storage Measures: Keep away from strong acids, oxidizers, and incompatible metals

First Aid Measures

Inhalation: Move to fresh air immediately; seek medical attention if symptoms occur
Skin Contact: Rinse with water and remove contaminated clothing
Eye Contact: Flush eyes with water for at least 15 minutes; seek medical advice
Ingestion: Rinse mouth; do NOT induce vomiting; seek urgent medical attention

Firefighting Measures

Fire Hazards: Not flammable; may decompose at high temperatures producing toxic selenium fumes
Extinguishing Media: Water spray, CO₂, dry chemical
Hazardous Combustion Products: Selenium oxides, toxic fumes