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SODIUM SELENITE

MacsChem > Lab & Other Analytical Reagents > SODIUM SELENITE

What is Sodium Selenite?

Sodium selenite (Na₂SeO₃) is an inorganic compound recognized for its colorless solid form. The pink-colored pentahydrate, Na₂SeO₃·5H₂O, is the most common water-soluble selenium compound. It is synthesised by the reaction of selenium dioxide with sodium hydroxide. It is the most common selenium supplement for pet foods approved by the U.S. Food and Drug Administration.

Structure-of-Sodium-Selenite

CAS No.: 10102-18-8

Synonyms: Disodium selenite; Selenious acid disodium salt; Natriumselenit; Sodium biselenite; Selenite, sodium; Pleo selene; Sodium selenite anhydrous; Disodium selenium trioxide.

Properties of Sodium Selenite

Physical Properties
Chemical formulaNa2SeO3
IUPAC NameDisodium selenite
Molecular weight172.95 g/mol
Density3.1 g/cm³
SolubilityWater, methanol & ethanol
Chemical Properties
ColorWhite to Off-white
StateSolid Crystalline Powder
Melting point710 °C
λmax205.1 nm
pKa1.2
LogP-1.3

Uses of Sodium Selenite

  1. Dietary Supplements: Sodium selenite is incorporated into dietary supplements to prevent or correct selenium deficiency. It is also used in livestock and poultry feed to prevent selenium deficiency, reducing the risk of white muscle disease.
  2. Glass Manufacturing: Sodium selenite is utilized in the glass industry to make colorless glass. Its pink color cancels out the greenish color of iron impurities and makes the glass colorless.
  3. Insulin-Transferrin-Selenium (ITS): Sodium selenite in the ITS supplement provides the required selenium, which acts as an antioxidant and promotes cellular metabolism, aiding healthier cell growth in culture.
  4. Medical Research: It is used in the cell culture media supplements, to reduce lymphedema, to induce apoptosis of cancer cells, and in the treatment of schizophrenia and bipolar disorder.
  5. Agriculture: Sodium selenite is used to improve crop yields and the quality of Rice, cabbage, Buckwheat, fruit trees, and oats.

Side Effects of sodium Selenite

  • Its overuse creates the chances of Selenosis.
  • Chronic exposure to high levels of selenium may cause cardiovascular issues.
  • It interacts with other medications like anticoagulants, resulting in an increased risk of bleeding and medication of hypothyrodism or hyperthyroidism.
  • It also induced gastrointestinal disturbances and allergic reactions like irritation in the eye, skin, and mucous membranes.
Pictograms :
Hazard Statements :

H300 + H330: Fatal if swallowed or if inhaled.
H315: Causes skin irritation.
H317: This may cause an allergic skin reaction.
H319: Causes serious eye irritation.
H411: Toxic to aquatic life with long-lasting effects.

Precautionary statements :P260: Do not breathe dust.
P273: Avoid release to the environment.
P280: Wear protective gloves/ eye protection/ face protection.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present, and easy to do. Continue rinsing.

What is Sodium Selenite?

Sodium selenite (Na₂SeO₃) is an inorganic compound recognized for its colorless solid form. The pink-colored pentahydrate, Na₂SeO₃·5H₂O, is the most common water-soluble selenium compound. It is synthesised by the reaction of selenium dioxide with sodium hydroxide. It is the most common selenium supplement for pet foods approved by the U.S. Food and Drug Administration.

Structure-of-Sodium-Selenite

CAS No.: 10102-18-8

Synonyms: Disodium selenite; Selenious acid disodium salt; Natriumselenit; Sodium biselenite; Selenite, sodium; Pleo selene; Sodium selenite anhydrous; Disodium selenium trioxide.

Properties of Sodium Selenite

Physical Properties
Chemical formulaNa2SeO3
IUPAC NameDisodium selenite
Molecular weight172.95 g/mol
Density3.1 g/cm³
SolubilityWater, methanol & ethanol
Chemical Properties
ColorWhite to Off-white
StateSolid Crystalline Powder
Melting point710 °C
λmax205.1 nm
pKa1.2
LogP-1.3

Uses of Sodium Selenite

  1. Dietary Supplements: Sodium selenite is incorporated into dietary supplements to prevent or correct selenium deficiency. It is also used in livestock and poultry feed to prevent selenium deficiency, reducing the risk of white muscle disease.
  2. Glass Manufacturing: Sodium selenite is utilized in the glass industry to make colorless glass. Its pink color cancels out the greenish color of iron impurities and makes the glass colorless.
  3. Insulin-Transferrin-Selenium (ITS): Sodium selenite in the ITS supplement provides the required selenium, which acts as an antioxidant and promotes cellular metabolism, aiding healthier cell growth in culture.
  4. Medical Research: It is used in the cell culture media supplements, to reduce lymphedema, to induce apoptosis of cancer cells, and in the treatment of schizophrenia and bipolar disorder.
  5. Agriculture: Sodium selenite is used to improve crop yields and the quality of Rice, cabbage, Buckwheat, fruit trees, and oats.

Side Effects of sodium Selenite

  • Its overuse creates the chances of Selenosis.
  • Chronic exposure to high levels of selenium may cause cardiovascular issues.
  • It interacts with other medications like anticoagulants, resulting in an increased risk of bleeding and medication of hypothyrodism or hyperthyroidism.
  • It also induced gastrointestinal disturbances and allergic reactions like irritation in the eye, skin, and mucous membranes.
Pictograms :
Hazard Statements :

H300 + H330: Fatal if swallowed or if inhaled.
H315: Causes skin irritation.
H317: This may cause an allergic skin reaction.
H319: Causes serious eye irritation.
H411: Toxic to aquatic life with long-lasting effects.

Precautionary statements :P260: Do not breathe dust.
P273: Avoid release to the environment.
P280: Wear protective gloves/ eye protection/ face protection.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present, and easy to do. Continue rinsing.

FAQ's

Sodium selenite is used as a supplement to provide selenium in animal feeds and dietary supplements. It is utilized in the manufacturing of colorless glass and other applications involving selenium chemistry.

Selenium is a trace mineral essential for health, while sodium selenite is a compound that contains selenium. Sodium selenite is a form of selenium used in supplements and animal feeds.

Sodium selenite is not inherently toxic at recommended levels but can become harmful in excess. Proper dosage control is crucial to prevent toxicity.

Sodium selenite is employed in veterinary medicine as a supplement to prevent selenium deficiency in animals. It helps support proper growth, immune function, and reproduction in livestock and pets.

Sodium selenite is synthetic. It is an inorganic compound typically produced through chemical processes involving selenium and sodium hydroxide.

Sodium selenite provides essential selenium, supporting antioxidant activity, thyroid function, and immune health. It’s used in supplements to direct selenium deficiency in humans and animals.

Sodium selenite is added to cat and dog food as a source of selenium, an essential trace mineral that supports immune function and thyroid health.

It prevents hair loss by strengthening hair follicles and supporting healthy thyroid function, which affects hair growth. Its antioxidant property helps in neutralizing free radicals that can damage hair follicles.

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