Sulfurous Acid
Sulfurous Acid
- CAS:
- 7782-99-2
- MF:
- H2O3S
- MW:
- 82.08
Suppliers by country/region
Company Type
Properties
- Density
- 1.03 g/mL at 25 °C(lit.)
- vapor density
- 2.3 (vs air)
- solubility
- solution of SO2 in H2O
- pka
- 1.92(at 25℃)
- form
- Liquid
- color
- Colorless
- Water Solubility
- Miscible with water.
- Sensitive
- Air Sensitive
- Merck
- 14,8976
- Dielectric constant
- 15.6（0℃）
- Stability:
- Stable. Incompatible with strong bases.
- InChIKey
- LSNNMFCWUKXFEE-UHFFFAOYSA-N
- LogP
- -1.579 (est)
Safety Information
- Symbol(GHS)
GHS05,GHS07
- Signal word
- Danger
- Hazard statements
- H314-H332
- Precautionary statements
- P261-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
- Hazard Codes
- C,Xn
- Risk Statements
- 20-34-36/38
- Safety Statements
- 26-36/37/39-45
- RIDADR
- UN 1833 8/PG 2
- WGK Germany
- 1
- RTECS
- WT2775000
- F
- 10-23
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- II
- HS Code
- 28111990
Use
Sulfurous Acid is a weak and unstable inorganic acid, which is considered an aqueous solution of sulfur dioxide in water. It is formed theoretically by burning sulfur to produce sulfur dioxide, which is then reacted with water. However, there is no evidence that sulfurous acid exists in solution, while the molecules of which has been detected in the gas phase, since the reaction is reversible and the acid readily decomposes back into the reactants. Sulfurous acid is not usually available in its acid form, but more commonly prepared as its sodium or potassium salts. Sulfurous acid and its salts are commonly applied as powerful reducing agents and disinfectant agents due to its strong reducibility. It is also considered as a mild bleaching agent especially for applications having chlorine sensitive materials. Besides, Sulfurous acid is a food additive listed on the EAFUS food Additive Database (Jan. 2001).
5 India supplier list of "Sulfurous Acid"
- Product Name:Sulfurous acid
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:Sulphur Dioxide
- Products Intro:Purity: 99% | Package: 1kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Kerela,INDIA
- Product Name:Sulfurdioxidesolution
- Products Intro:Brand:sigma aldrich | Product Number:247626 | Purity:ACSreagent,≥6%
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:Sulfurous Acid
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:SulphurousAcidsolution5-6%AR(Sulphurdioxide)
- Products Intro:Brand:cdhfinechemical | Product Number:895440
- Company Type: Trader
- Country/Region: New Delhi,INDIA
- Product Name:Sulphurousacid,GRsolutionapp.5.6%
- Products Intro:Brand:ottokemi | Product Number:S2807
- Company Type: Trader
- Country/Region: Mumbai,INDIA
- Product Name:Sulphur Dioxide
- Company Type: Trader
- Country/Region: New Delhi,INDIA
- Product Name:sulfurousacid
- Products Intro:Brand:thermofisher.in | Product Number:ALF-033275-AP
- Company Type: Trader
- Country/Region: Maharashtra,INDIA
- Product Name:SulfurousAcid
- Products Intro:Brand:clearsynth | Product Number:CS-T-87014
- Company Type: Trader
- Country/Region: Hyderabad,INDIA
- Product Name:SULPHURDIOXIDEAQUEOUSSOLUTIONExtraPure
- Products Intro:Brand:lobachemie | Product Number:6187B | Purity:5%
- Company Type: Trader
- Country/Region: Mumbai,INDIA