Sodium Selenite Pentahydrate BP
Abstract:
Sodium selenite is the disodium salt of selenious acid. It is an inorganic compound with the formula Na2SeO3. This salt is a colorless solid. The pentahydrate Na2SeO3.5H2O is the most common water-soluble selenium compound.
Use/Application:
Used as an ingredient in dietary suppliments. Approved as a selenium supplement to animal diets; the most common form is sodium selenite for pet foods
Identity:
Chemical Name: Sodium Selenite Pentahydrate
Mol. Formula: Na2SeO3.5H2O
Mol. Weight: 263.0g/mol
CAS No.: 26970-82-1
General Specifications:
| Test | Specification |
| Description | It occurs as a white or almost white crystalline powder, hygroscopic. |
| Identification
Test (A)
Test (B) Test (C) Test (D) |
(a)Specified Test. A red precipitate is formed which may become black (b)Specified Test. The solution remains clear (c)It gives reactions of sodium (d) It complies with the limits of assay |
| Solubility | Freely soluble in water, practically insoluble in ethanol |
| Appearance of Solution | Solution S is clear and colorless |
| pH | Between 9.8 and 10.8 |
| Chlorides | Not more than 50 ppm |
| Sulfates and Selenates | Not more than 300 ppm |
| Iron | Not more than 50 ppm |
| Assay | Not less than 98.5% and not more than 101.5% |
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
Other
GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.
