POTASSIUM TELLURITE
- CAS No.
- 7790-58-1
- Chemical Name:
- POTASSIUM TELLURITE
- Synonyms
- PotassiuM tellurit;Potasium Tellurite;POTASSIUM TELLURITE;dipotassium tellurite;potassiumtellurate(iv;Potassiumtellurite,97%;potassium tellurite(Ⅳ);POTASSIUM TELLURITE (IV);Potassium trioxotellurate;Potassium tellurite >=90%
- CBNumber:
- CB3702871
- Molecular Formula:
- H3KO3Te
- Molecular Weight:
- 217.72
- MDL Number:
- MFCD00011379
- MOL File:
- 7790-58-1.mol
| Melting point | decomposes at 460–470℃ [HAW93] |
|---|---|
| storage temp. | 2-8°C |
| solubility | very soluble in H2O |
| form | white hygroscopic crystals |
| color | white hygroscopic crystals, crystalline |
| Water Solubility | g/100g H2O: 8.8 (0°C), 27.5 (20°C), 50.4 (30°C) [LAN05] |
| CAS DataBase Reference | 7790-58-1(CAS DataBase Reference) |
| FDA UNII | 71M41949N8 |
| EPA Substance Registry System | Telluric acid (H2TeO3), potassium salt (1:2) (7790-58-1) |
| UNSPSC Code | 41171614 |
| NACRES | NA.85 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS06 |
|---|---|
| Signal word | Danger |
| Hazard statements | H301-H315-H319 |
| Precautionary statements | P264-P270-P280-P301+P310-P302+P352-P305+P351+P338 |
| Hazard Codes | T |
| Risk Statements | 36/37/38-25-20/21/22 |
| Safety Statements | 26-45-36 |
| RIDADR | UN 3284 6.1/PG 3 |
| WGK Germany | 3 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
POTASSIUM TELLURITE Chemical Properties,Uses,Production
Chemical Properties
Granular, white powder. Hygroscopic; decomposes at 460–470C. Soluble in water.
Uses
In 1:50,000 solution for detecting presence of living pathogenic bacteria in sera and vaccines, such organisms forming characteristic black reduction Compounds.
Uses
Potassium tellurite along with agar may be used as a component of a selective medium for growth of bacteria.
Definition
ChEBI: A potassium salt consisting of potassium and tellurite ions in a 2:1 ratio.
General Description
Potassium tellurite is a hygroscopic granular white powder. It decomposes at 460-470oC.
Safety Profile
A poison by an unspecified route. Human systemic effects by ingestion: sleep dsturbance, anorexia, nausea. When heated to decomposition it emits toxic fumes of K2O and Te. See also TELLURIUM compounds.