Selenious acid

Base Information

• Chemical Name: Selenious acid
• CAS No.: 7783-00-8
• Deprecated CAS: 11140-60-6,1408288-83-4,2225846-51-3,1408288-83-4
• Molecular Formula: H2O3Se
• Molecular Weight: 128.974
• European Community (EC) Number: 231-974-7
• ICSC Number: 0945
• UN Number: 3283,2630
• UNII: F6A27P4Q4R
• DSSTox Substance ID: DTXSID9024300
• Nikkaji Number: J4.497K
• Wikipedia: Selenous acid,Selenious acid,Selenous_acid
• Wikidata: Q413722
• NCI Thesaurus Code: C87344
• RXCUI: 36344
• ChEMBL ID: CHEMBL2009089
• Mol file: 7783-00-8.mol

Synonyms:Acid, Selenious;Acid, Selenous;Selenious Acid;Selenite;Selenous Acid

Chemical Property of Selenious acid

Chemical Property:

• Appearance/Colour: powder
• Melting Point: 70 °C (dec.)(lit.)
• Boiling Point: 684.9 °C(lit.)
• Flash Point: 690 °C
• PSA: 57.53000
• Density: 4.81 g/mL at 25 °C(lit.)
• LogP: -0.85320
• Water Solubility.: 167 g/100 mL (20℃)
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 129.91692
• Heavy Atom Count: 4
• Complexity: 26.3
• Transport DOT Label: Poison

Purity/Quality:

Safty Information:

• Pictogram(s): T; N; Xi
• Hazard Codes: T:Toxic;;
• Statements: R23/25:; R33:; R50/53:
• Safety Statements: S20/21:; S28A:; S45:; S60:; S61:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Other Inorganic Compounds
• Canonical SMILES: O[Se](=O)O
• Recent ClinicalTrials: Selenium as a Potential Treatment for Moderately-ill, Severely-ill, and Critically-ill COVID-19 Patients.
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema. The substance may cause effects on the eyes. This may result in allergic-type reaction of the eyelids (rose eye). Medical observation is indicated.
• Effects of Long Term Exposure: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the respiratory tract, gastrointestinal tract, central nervous system and liver. This may result in nasal irritation, persistent garlic odour, stomach pain, nervousness and liver impairment.

Technology Process of Selenious acid

There total 76 articles about Selenious acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

gold(III) chloride-selenium tetrachloride → gold(III) chloride (13453-07-1) + selenious acid (7783-00-8)

Guidance literature:

With water; byproducts: HCl;

Reference yield:

gold(III) selenate → gold(III) chloride (13453-07-1) + selenious acid (7783-00-8)

Guidance literature:

With hydrogenchloride; byproducts: Cl2;

DOI:10.1021/ja02018a005

Reference yield:

SeO2*4HBr → hydrogen bromide (10035-10-6,12258-64-9) + selenious acid (7783-00-8)

Guidance literature:

In water; decomposition by a large amount of water;;

upstream raw materials:

selenium

water

ozone

selenium(IV) oxide

Downstream raw materials:

copper(II) sulfate

manganese

selenium

tellurium

Refernces

• 1、 Prabhu,Mohanraj,Kannan,Barathan,Sivakumar. "Effect of pH, L-arginine concentration, and aging time on selenium nanostructures". . . Retrieved 2014.
• 2、 Kovrugin, Vadim M.,Kornyakov, Ilya V.,Gurzhiy, Vladislav V.,Siidra, Oleg I.,Colmont, Marie,Mentré, Olivier,Krivovichev, Sergey V.. "Synthesis and crystal structure of β-CuSe2O5, a new polymorph of copper diselenite". . p. 61 - 63. Retrieved 2017.
• 3、 Mukherjee, Nillohit,Khan, Gobinda Gopal,Sinha, Arijit,Mondal, Anup. "Synthesis of band gap engineered PbxCd1-xSe thin films: A study on their optical, electrical, structural and localized mechanical properties". . p. 1880 - 1886. Retrieved 2010.