295698
Sulfur dioxide
≥99.9%
Synonym(s):
Sulfurous anhydride, Sulfurous oxide, Sulphur dioxide
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
About This Item
Linear Formula:
SO2
CAS Number:
Molecular Weight:
64.06
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
231-195-2
Beilstein/REAXYS Number:
3535237
MDL number:
Assay:
≥99.9%
vapor density
2.26 (21 °C, vs air)
Quality Level
vapor pressure
1779 mmHg ( 21 °C)
assay
≥99.9%
bp
−10 °C (lit.)
mp
−73 °C (lit.)
density
1.25 g/mL at 25 °C (lit.)
SMILES string
O=S=O
InChI
1S/O2S/c1-3-2
InChI key
RAHZWNYVWXNFOC-UHFFFAOYSA-N
Application
Sulfur dioxide is primarily used as a feedstock for the production of sulfuric acid (contact process). It is generally used in the synthesis of a variety of sulfur-containing organic compounds like alkyl/aryl sulfonyl chlorides, sulfinates, sultines, and polysulfone.
Packaging
Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.
Compatible with the following:
Compatible with the following:
- Aldrich® lecture-bottle station systems
- Aldrich® lecture-bottle gas regulators
Other Notes
See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Still not finding the right product?
Explore all of our products under Sulfur dioxide
signalword
Danger
Storage Class
2A - Gases
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, multi-purpose combination respirator cartridge (US)
target_organs
Respiratory system
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Eye Dam. 1 - Press. Gas Liquefied gas - Skin Corr. 1B - STOT SE 1 Inhalation
Regulatory Information
监管及禁止进口产品
This item has
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
The development and application of sulfur dioxide surrogates in synthetic organic chemistry.
Emmett EJ and Willis MC
Asian Journal of Organic Chemistry, 4(7), 602-611 (2015)
Sulfur dioxide
Understanding Wine Chemistry, 4(7), 140-148 (2016)
Sulfur dioxide.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 295698-454G | 04061826648995 |
| 295698-PZ | 04061823972222 |