Sulfur Dioxide

Base Information

• Chemical Name: Sulfur Dioxide
• CAS No.: 7446-09-5
• Deprecated CAS: 12396-99-5,8014-94-6,83008-56-4,89125-89-3,1239882-82-6,1239882-82-6,8014-94-6,83008-56-4,89125-89-3
• Molecular Formula: SO2
• Molecular Weight: 64.0648
• Hs Code.: 2811290090
• European Community (EC) Number: 231-195-2
• ICSC Number: 0074
• UN Number: 1079
• UNII: 0UZA3422Q4
• DSSTox Substance ID: DTXSID6029672
• Nikkaji Number: J3.737K
• Wikipedia: Sulfur dioxide
• Wikidata: Q5282
• RXCUI: 1362879
• ChEMBL ID: CHEMBL1235997
• Mol file: 7446-09-5.mol

Synonyms:Sulfur Dioxide;Sulfurous Anhydride

Chemical Property of Sulfur Dioxide

Chemical Property:

• Appearance/Colour: Colourless gas
• Vapor Pressure: 2530mmHg at 25°C
• Melting Point: -73 °C
• Refractive Index: 1.51
• Boiling Point: -10 °C
• PSA: 66.23000
• Density: 1.59 g/cm³
• LogP: 0.41060
• XLogP3: 0.1
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 63.96190041
• Heavy Atom Count: 3
• Complexity: 18.3
• Transport DOT Label: Poison Gas Corrosive

Purity/Quality:

99.9% ^*data from raw suppliers

Safty Information:

• Pictogram(s): T
• Hazard Codes: T:Toxic
• Statements: R23:; R34:
• Safety Statements: S9:; S26:; S36/37/39:; S45:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Corrosive Gases
• Canonical SMILES: O=S=O
• Inhalation Risk: A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
• Effects of Short Term Exposure: Rapid evaporation of the liquid may cause frostbite. The substance is irritating to the eyes and respiratory tract. Inhalation may cause asthma-like reactions. The substance may cause effects on the respiratory tract. This may result in asthma-like reactions, reflex spasm of the larynx and respiratory arrest. The effects may be delayed. Medical observation is indicated.
• Effects of Long Term Exposure: Repeated or prolonged inhalation may cause asthma.

Technology Process of Sulfur Dioxide

There total 1864 articles about Sulfur Dioxide 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:

pyrosulfuryl chloride (7791-27-7) + phosphorus trichloride (7719-12-2,52843-90-0) → phosphorus pentachloride (10026-13-8,874483-75-7) + sulfur dioxide (7446-09-5,12143-17-8,89125-89-3) + trichlorophosphate (10025-87-3,12599-09-6,63736-95-8,39380-77-3)

Guidance literature:

In not given; react. with S2O5Cl2 in coldness;;

Reference yield:

pyrosulfuryl chloride (7791-27-7) + phosphorus pentachloride (10026-13-8,874483-75-7) → sulfur dioxide (7446-09-5,12143-17-8,89125-89-3) + chlorine (7782-50-5) + trichlorophosphate (10025-87-3,12599-09-6,63736-95-8,39380-77-3)

Guidance literature:

In not given; react. with S2O5Cl2;;

Reference yield:

iron(III) oxide + zinc sulfide → iron(II) oxide (1345-25-1) + sulfur dioxide (7446-09-5,12143-17-8,89125-89-3) + zinc(II) oxide

Guidance literature:

direct smelting of sulfide ores; unreduced Fe2O3 roasts zinc blende;;

upstream raw materials:

thiophene

Dimethyldisulphide

thionyl chloride

water

Downstream raw materials:

3-[(Z)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarbonyl chloride

5-ethoxycarbonyl-2,3,3-trimethylindolenine

sodium 2-fluorobenzenesulfinate

phenyl trifluoromethylsulfide

Refernces

• 1、 Whyte, A. R.,Phillips, L. F.. "SO(B-X) Bands. Tests of the Effects of SO Decay Energy Transfer from O2(1Δg) on Measured SO Absorption Cross Sections in the O + CS2 Recation System". . p. 4327 - 4330. Retrieved 1982.
• 2、 Chen, Jianjun,Ding, Yun,He, Minghua,Li, Junhua,Liu, Haiyan,Liu, Jun,Liu, Xiaoqing,Liu, Yuefeng,Mi, Jinxing,Shi, Jianqiang,Shi, Lin,Wang, Zisha,Wu, Zhong-Shuai,Xiong, Shangchao,Zhang, Qinfang. "In Situ Modulation of A-Site Vacancies in LaMnO3.15 Perovskite for Surface Lattice Oxygen Activation and Boosted Redox Reactions". supporting information. p. 26747 - 26754. Retrieved 2021/11/17.
• 3、 Chen, Lei,Zhou, Mi,Shen, Lin,He, Xiaochun,Li, Xiong,Zhang, Xuemei,Lian, Zhong. "Metal- And Base-Free C(sp2)-H Arylsulfonylation of Enamides for Synthesis of (E)-β-Amidovinyl Sulfones via the Insertion of Sulfur Dioxide". supporting information. p. 4991 - 4996. Retrieved 2021/06/30.