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Tellurous(IV) acid, also known as H2TeO3, is a chemical compound that features the tellurium element in the +4 oxidation state. It is characterized as a weak acid with the chemical formula H2TeO3 and is typically encountered in the form of its salts or esters. Tellurous(IV) acid is distinguished by its unique properties and reactivity, which make it valuable in research and technology, despite its limited commercial applications.

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  • 10049-23-7 Structure
  • Basic information

    1. Product Name: Tellurous(IV) acid
    2. Synonyms: Telluric(IV)acid (H2TeO3) (6CI,7CI); Dihydrogen trioxotellurate; Tellurium hydroxide oxide(Te(OH)2O); Telluronium, trihydroxy-, inner salt; Tellurous acid; Tellurousacid (H2TeO3)
    3. CAS NO:10049-23-7
    4. Molecular Formula: H2O3Te
    5. Molecular Weight: 0
    6. EINECS: 233-173-8
    7. Product Categories: N/A
    8. Mol File: 10049-23-7.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Tellurous(IV) acid(CAS DataBase Reference)
    10. NIST Chemistry Reference: Tellurous(IV) acid(10049-23-7)
    11. EPA Substance Registry System: Tellurous(IV) acid(10049-23-7)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 10049-23-7(Hazardous Substances Data)

10049-23-7 Usage

Uses

Used in Analytical Chemistry:
Tellurous(IV) acid is utilized as a reagent for the determination of specific metals, such as antimony and bismuth. Its role in this application is crucial for accurate analytical measurements and assessments in various scientific and industrial processes.
Used in the Production of Tellurium-Containing Compounds:
Tellurous(IV) acid serves as a precursor in the synthesis of a variety of tellurium-containing compounds. Its involvement in the production process is essential for creating materials with specific properties that can be tailored for different applications.
Used in the Synthesis of Tellurium-Containing Materials:
Tellurous(IV) acid is also employed in the synthesis of materials that incorporate tellurium. These materials can exhibit unique characteristics that are beneficial in various technological and industrial applications, highlighting the compound's significance in material science and innovation.

Check Digit Verification of cas no

The CAS Registry Mumber 10049-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,4 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 10049-23:
(7*1)+(6*0)+(5*0)+(4*4)+(3*9)+(2*2)+(1*3)=57
57 % 10 = 7
So 10049-23-7 is a valid CAS Registry Number.
InChI:InChI=1/O3Te/c1-4(2)3/q-2/p+2

10049-23-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name tellurous acid

1.2 Other means of identification

Product number -
Other names Tellurium dioxide hydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:10049-23-7 SDS

10049-23-7Relevant articles and documents

ISOLATION OF TELLURIUM DIOXIDE FROM SODIUM TELLURITE SOLUTION

REVZIN GE,KUZINA VA

, p. 1456 - 1461 (2008/10/08)

The use of tellurium and its compounds as semiconductor materials requires preparation of highly pure tellurium, e. g. the form of its dioxide. Investigation was made of the influence of the precipitation conditions on the purity and yield of tellurium dioxide obtained by neutralization of sodium tellurite solutions with nitric acid. The optimal conditions for precipitation of pure tellurium dioxide with nitric acid were Na//2Teo//3 concentration 100 g/liter, or less, temperature 100 C, and final pH at precipitation 3. 5 to 4. 0.

THERMODYNAMIC EQUILIBRIA OF SULFUR, SELENIUM AND TELLURIUM WATER SYSTEMS IN RANGE OF TEMPERATURES FROM 25 TO 300 C AND THEIR GEOCHEMICAL INTERPRETATION

D'YACHKOVA IB,KHODAKOVSKII IL

, p. 1358 - 1375 (2008/10/08)

Thermodynamic analysis of Eh-pH stability fields shows that separation stage of sulfur, selenium, and tellurium from solutions may be determined by Eh-pH factors and temperature changes; Eh of environment is most important factor. Maximum separation of th

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