7782-99-2 Usage
Reactivity Profile
Colorless, corrosive, moderately toxic liquid. When heated to decomposition SULFUROUS ACID emits toxic fumes of oxides of sulfur [Lewis, 3rd ed., 1993, p. 1196].
Hazard
Toxic by ingestion and inhalation, strong
irritant to tissue.
Health Hazard
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Safety Profile
A poison by ingestion and inhalation. A corrosive irritant to skin, eyes, and mucous membranes. Human systemic effects by ingestion: nausea or vomiting, hypermotility, diarrhea, and othergastrointestinal effects. When heated to decomposition it emits highly toxic fumes ofSOx.
References
https://en.wikipedia.org/wiki/Sulfurous_acid http://printwiki.org/Sulfurous_Acid http://www.softschools.com/formulas/chemistry/sulfurous_acid_uses_properties_structure_formula/242/ https://pubchem.ncbi.nlm.nih.gov/compound/Sulfurous_acid#section=Top http://www.chemistrylearner.com/sulfurous-acid.html
Check Digit Verification of cas no
The CAS Registry Mumber 7782-99-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7782-99:
(6*7)+(5*7)+(4*8)+(3*2)+(2*9)+(1*9)=142
142 % 10 = 2
So 7782-99-2 is a valid CAS Registry Number.
InChI:InChI=1/H2O3S/c1-4(2)3/h(H2,1,2,3)
7782-99-2Relevant articles and documents
A Fluorescent Visual Proton Donor and Photoacid Sterilant Based on Sulfonate‐conjugated BODIPY
Ali, Abbas Mohammed,Shao, Jian,Wang, Jia-Xin,Chen, Qiu-Yun,Li, Yang,Qu, Ling-Ling
, p. 501 - 507 (2021)
Increasing acidity is an effective method for bacterial inactivation by inhibiting the synthesis of intracellular proteins at low pH. Photo-driven proton release probe can be used for the measurement of proton in hydrophobic condition. To develop fluorescent proton donor, two boron dipyrromethene derivatives (BDP-S and BDP-S2) were characterized by spectroscopic methods. Irradiation of BDP-S by white LED light resulted in efficient generation of acidic species with changes of fluorescence emission. The linear relationship between the pH value and the fluorescence intensity of BDP-S was obtained, indicating that BDP-S is a fluorescent visual proton donor. Light-induced antibacterial results indicate that BDP-S can significantly inhibit the growth of E. coli. The results prove that BDP-S is a very promising photoacid sterilant.
New sulfured compounds
-
, (2008/06/13)
New sulfurized compounds, their preparation and their use are described. They correspond to the general formula: {[R--SX --(CH2)n --]z CH3-z --(CH2)P --}2 Sy, in which R represents a monovalent hydrocarbon radical with 1 to 30 carbon atoms, optionally functionalized; x is a number equal to or greater than 1; z is an integer equal to 1 or 2; when z=1, n is an integer from 0 to 3 and p is an integer from 0 to 3, with n+p being an integer from 0 to 3; when z=2, n is an integer from 1 to 3 and p is an integer from 0 to 3; and y is a number equal to or greater than 1, at last one of the numbers x and y being strictly greater than 1. These sulfurized compounds can be used as extreme-pressure and anti-wear additives in lubricating oils, in particular oils for gear systems and oil for working metals.
