Potassium tellurite
Basic information
- CAS
7790-58-1- Standard SMILES
O=[Te]([O-])[O-].[K+].[K+]- InChIKey
BFPJYWDBBLZXOM-UHFFFAOYSA-L- Molecular formula
- K2O3Te
- Average molar mass
- 253.8 g/mol
- Monoisotopic mass
- 255.8183796
Overview
Potassium tellurite is a potassium salt consisting of potassium and tellurite ions in a 2:1 ratio. It contains a tellurite.
Names & identifiers
- Preferred name
- Potassium tellurite
- IUPAC
- dipotassium;tellurite
- English name
- POTASSIUM TELLURITE
- Molecular formula
- H3KO3Te
- Molecular weight
- 217.72
Names & synonyms
Potassium tellurite7790-58-1Potassium tellurate(IV)Telluric acid, dipotassium salt71M41949N8CHEBI:75248RefChem:58741232-213-1Kali TelluricosumDipotassium trioxotelluratedipotassium telluritedipotassium;tellurite
Show more names
PotassiuM telluritPotasium Telluritepotassiumtellurate(ivPotassiumtellurite,97%potassium tellurite(Ⅳ)POTASSIUM TELLURITE (IV)Potassium trioxotelluratePotassium tellurite >=90%
EINECS 232-213-1Telluric acid (H2TeO3), dipotassium saltUNII-71M41949N8Potassiium Tellurite (IV)Telluric acid (H2TeO3), potassium salt (1:2)DTXSID50999096MFCD00011379POTASSIUMTELLURITE
Database identifiers
- CAS
7790-58-1- PubChem CID
- 65186
- DTXSID
DTXSID50999096- ChEBI
CHEBI:75248- UNII
- 71M41949N8
- EC Number
- 232-213-1
- Nikkaji
- J488.860J
Properties
Computed structural properties
- Topological polar surface area
- 63.2 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 6
- Formal charge
- 0
- Complexity
- 18.8
Physicochemical properties
- Melting point
- 460 · decomposes at 460–470℃ [HAW93]
- storage temp.
- 2 · 2-8°C
- solubility
- 2 O · very soluble in H2O
- form
- white hygroscopic crystals
- color
- white hygroscopic crystals, crystalline
- Water Solubility
- 100 g · g/100g H2O: 8.8 (0°C), 27.5 (20°C), 50.4 (30°C) [LAN05]
- InChI
- 1S/H2O3Te/c1-4(2)3/h(H2,1,2,3)
- InChIKey
- SITVSCPRJNYAGV-UHFFFAOYSA-N
- SMILES
- O=[Te](O)O
- CAS DataBase Reference
- 7790 · 7790-58-1(CAS DataBase Reference)
- FDA UNII
- 71 M41949N8 · 71M41949N8
- EPA Substance Registry System
- Telluric acid (H2TeO3), potassium salt (1:2) (7790-58-1)
- UNSPSC Code
- 41171614 · 41171614
- NACRES
- 85 · NA.85
- Symbol(GHS)
- 6 · GHS06
- Signal word
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 53 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Telluric acid (H2TeO3), potassium salt (1:2)
Potassium tellurite, trihydrate: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesAcute Tox. 3 (100%)
Safety & protection
Protective Action Criteria (PAC)
0.60 [mg/m3]
3.4 [mg/m3]
21 [mg/m3]
Safety data
- PPE
- Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 3284 6.1/PG 3
- risk_code
- 36/37/38-25-20/21/22
- Signal word
- Danger
Chemistry & industry
Pharmacology
FDA Pharmacological Classification
KALI TELLURICOSUM
Osmotic Laxative [EPC]; Potassium Compounds [CS]; Potassium Salt [EPC]; Increased Large Intestinal Motility [PE]; Osmotic Activity [MoA]; Inhibition Large Intestine Fluid/Electrolyte Absorption [PE]
Uses & manufacturing
General Manufacturing InformationTelluric acid (H2TeO3), potassium salt (1:2): ACTIVE
Applications
UsesIn 1:50,000 solution for detecting presence of living pathogenic bacteria in sera and vaccines, such organisms forming characteristic black reduction Compounds.
UsesPotassium tellurite along with agar may be used as a component of a selective medium for growth of bacteria.
General DescriptionPotassium tellurite is a hygroscopic granular white powder. It decomposes at 460-470oC.
Additional notes
DefinitionChEBI: A potassium salt consisting of potassium and tellurite ions in a 2:1 ratio.
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