Sulfurous Acid

HCID 1100CAS 14265-45-3
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Grundinformationen

Standard-SMILES
O=S(O)O
InChIKey
LSNNMFCWUKXFEE-UHFFFAOYSA-N
Summenformel
H2O3S
Durchschnittliche Molmasse
82,08 g/mol
Monoisotopische Masse
81,97246492

Überblick

Sulfurous acid appears as a colorless liquid with a pungent burning sulfur odor. Corrosive to metals and tissue.

Namen und Bezeichner

Bevorzugter Name
Sulfurous Acid
IUPAC
sulfurous acid

Namen und Synonyme

Sulfurous acid7782-99-2Sulphurous acidSchweflige saureH2SO3EINECS 231-973-1acide sulfureuxacido sulfurososchweflige Saeuretrioxosulfuric aciddihydroxidooxidosulfurUNII-J1P7893F4J
Weitere Namen anzeigen
CHEBI:48854SULFUROUS ACID (H2SO3)J1P7893F4JSULPHUROSUM ACIDUMDTXSID7042435S(O)(OH)2SULFUROUS ACID (II)SULFUROUS ACID [II]

Datenbank-Bezeichner

CAS
14265-45-3、7782-99-2
PubChem CID
1100
DTXSID
DTXSID7042435
ChEMBL
CHEMBL1161699
ChEBI
CHEBI:48854
UNII
J1P7893F4J
EC Number
231-973-1
Nikkaji
J54.364K

Eigenschaften

Berechnete Struktureigenschaften

XLogP
-0,5
Polarare Oberfläche (TPSA)
76,7 Ų
H-Brücken-Donoren
2
H-Brücken-Akzeptoren
4
Frei drehbare Bindungen
0
Schwere Atome
4

Experimentelle und physikochemische Eigenschaften

Chemical Classes · 2 Einträge

Toxic Gases & Vapors -> Acids, Inorganic

Corrosives

Food AdditivesUse unspecified -> FDA Substance added to food
Density1.03 @25 °C
Solubility558.5 mg/mL
Physical Description · 4 Einträge

Sulfurous acid appears as a colorless liquid with a pungent burning sulfur odor. Corrosive to metals and tissue.

Liquid

Clear colorless liquid with a suffocating odor of sulfur dioxide; [Merck Index]

Solid

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 5 Einträge

This chemical does not meet GHS hazard criteria for 0.8% (1 of 130) of reports.

Danger

H314 (95.4%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 130 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Gefahrenhinweise

Regulatory Information · 3 Einträge

Chemical: Sulfurous acid

Sulfurous acid is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfurous acid are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelCorrosive
Fire Hazards · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Health Hazards · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

· TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death.

Hazards Summary · 1 Eintrag

Aqueous solution of approximately 6% sulfur dioxide; Gradually oxidized by air forming sulfuric acid; Corrosive; [Merck Index] A strong oxidizing agent; Causes burns; [CAMEO] Human ingestion of 0.5 mg/kg causes diarrhea, other gastrointestinal changes, and nausea or vomiting; [RTECS] Causes burns; Harmful by inhalation; [Alfa Aesar MSDS] See Sulfur dioxide and Sulfuric acid.

DOT ID and Guide1833 154

Sicherheit und Schutzausrüstung

Fire FightingExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
Accidental Release Measures · 2 Einträge

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

First Aid · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

General First Aid:

Exposure Control and Personal Protection· Wear positive pressure self-contained breathing apparatus (SCBA).
Nonfire Spill ResponseExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
Isolation and Evacuation · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Immediate precautionary measure

Toxikologische Informationen

Adverse EffectsDermatotoxin - Skin burns.

Chemie und Industrie

Pharmakologische Informationen

Tissue LocationsBrain
Cellular LocationsMitochondria
Metabolite PathwaysBeta-mercaptolactate-cysteine disulfiduria

Verwendung und Herstellung

Uses · 2 Einträge

Used as a dental bleach, reducing agent, and antiseptic; [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Using Disinfectants or Biocides [Category: Clean]

U.S. Production2023: 51,128 lb
Industry UsesReducing agent
General Manufacturing Information · 2 Einträge

Food, beverage, and tobacco product manufacturing

Sulfurous acid: ACTIVE

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