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Potassium tellurite

Potassium tellurite structure

CAS No:
7790-58-1
Formula:
H2O3Te.2K
Chemical Name:
Potassium tellurite
Synonyms:
Telluric acid (H2TeO3),potassium salt (1:2);Telluric acid (H2TeO3),dipotassium salt;Potassium tellurate(IV) (K2TeO3);Potassium tellurium oxide (K2TeO3);Potassium tellurate (K2TeO3);Potassium tellurite;Potassium trioxotellurate(2-);Dipotassium tellurite;Potassium tellurite (K2TeO3);Potassium tellurate (K2(TeO3));2409067-83-8
Categories:
Organic Chemistry > Free Radicals

Description

Granular, white powder. Hygroscopic; decomposes at 460–470C. Soluble in water.

Potassium tellurite is a potassium salt consisting of potassium and tellurite ions in a 2:1 ratio. It contains a tellurite.

Potassium tellurite Basic Attributes

Molecular Weight：

253.795

Exact Mass：

255.818375

EC Number：

232-213-1

UNII：

71M41949N8

Characteristics

PSA：

63.19000

XLogP3：

-0.73720

Appearance：

White to light yellowish white powder

Melting Point：

decomposes at 460–470℃ [HAW93]

Water Solubility：

g/100g H2O: 8.8 (0°C), 27.5 (20°C), 50.4 (30°C) [LAN05]

Storage Conditions：

2-8ºC

Safety Information

Packing level：

III

Hazard category：

6.1(b)

Transport codes：

UN 3284 6.1/PG 3

wgk germany：

hazard class code：

R36/37/38

safety instructions：

S26-S45-S36

Marks：

Precautionary statement(s)：

P261-P301 + P310-P305 + P351 + P338

Hazard Statements：

H301-H315-H319-H335

GHS Classification：

|Danger|H301 (98%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 50 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

potassium tellurate(IV)

Potassium tellurite Use and Manufacturing

Uses

In 1:50,000 solution for detecting presence of living pathogenic bacteria in sera and vaccines, such organisms forming characteristic black reduction Compounds.

Manufacturing Info：

Telluric acid (H2TeO3), potassium salt (1:2): ACTIVE

Computed Properties

Molecular Weight:253.8
Hydrogen Bond Acceptor Count:3
Exact Mass:255.8183796
Monoisotopic Mass:255.8183796
Topological Polar Surface Area:63.2
Heavy Atom Count:6
Complexity:18.8
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

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