Selenous acid - PrimorTrace™, ≥99.999% metals basis , CAS No.7783-00-8

CAS: 7783-00-8 Cat. No.: S475223 Formula: H₂SeO₃ Molecular Weight: 128.97 EC Number: 231-974-7

GRADE & PURITY PrimorTrace™, ≥99.999% metals basis

Synonyms

Monohydrated selenium dioxide|Selenium dioxide, monohydrated|Selenous acid|Selenious acid (H2SeO3)|selenige Saeure

Storage

Room temperature

Shipped In

FedEx DG Service

Overview

Selenous acid is a dibasic acid. It is the oxoacid of selenium and can be formed by adding selenium dioxide gas to water. Selenous acid shows analogy to sulfurous acid. As a crystalline solid, the molecules are arranged in a pyramid and in a solution it behaves as a diprotic acid.

Specifications

Synonyms

Monohydrated selenium dioxide | Selenium dioxide, monohydrated | Selenous acid | Selenious acid (H2SeO3) | selenige Saeure

Specifications & Purity

PrimorTrace™, ≥99.999% metals basis

Storage

Room temperature

Shipped In

FedEx DG Service

Grade

PrimorTrace™

Purity

≥99.999% metals basis

Names and Identifiers

Pubchem Sid

528769831

Canonical Smiles

O[Se](=O)O

IUPAC Name

selenous acid

InChIKey

MCAHWIHFGHIESP-UHFFFAOYSA-N

INCHI

1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)

Isomeric SMILES

O[Se](=O)O

WGK Germany

3

RTECS

VS7175000

UN Number

3283

Packing Group

I

Molecular Weight

128.97

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Other mixed metal/non-metal oxoanionic compounds
      • Subclass Non-metal selenites

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Other mixed metal/non-metal oxoanionic compounds
• Subclass: Non-metal selenites
• Intermediate Tree Nodes: Not available
• Direct Parent: Non-metal selenites
• Alternative Parents: Inorganic oxides
• Molecular Framework: Not available
• Substituents: Non-metal selenite - Inorganic oxide
• Description: This compound belongs to the class of inorganic compounds known as non-metal selenites. These are inorganic non-metallic compounds containing a selenite as its largest oxoanion.
• External Descriptors: an anion

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in water and ethanol.
• Sensitivity: Moisture sensitive
• Melt Point(°C): 70°C
• Molecular Weight: 128.990 g/mol
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 129.917 Da
• Monoisotopic Mass: 129.917 Da
• Topological Polar Surface Area: 57.500 Ų
• Heavy Atom Count: 4
• Formal Charge: 0
• Complexity: 26.300
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

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