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SULFUR DIOXIDE

Also known as: Dioxide, Sulfur, EINECS 231-195-2, MFCD00011450, Oxosulfane oxide, SO2, SULFUR OXIDE, SULPHUR DIOXIDE, Schwefeldioxid, Schwefeldioxyd, Sulfane, oxo-, oxide, Sulfur dioxide, Sulfur dioxide Standard, Sulfur dioxide [UN1079] [Poison gas], Sulfur dioxide,liquid, Sulfur oxide, Sulfur oxide (SO2), SulfureDioxide, dioxidedesoufre, siarkidwutlenek(polish), sulfur dioxide

SULFUR DIOXIDE (CAS 7446-09-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula O2S and a molecular weight of 64.064 g/mol. Key properties include a melting point of −73 °C(lit.), a boiling point of -10.0±9.0 °C at 760 mmHg and a density of 1.6±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7446-09-5
Jingsj CID
J-23865-4
Molecular Formula
O2S
Molecular Weight
64.064 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−73 °C(lit.)
Boiling Point-10.0±9.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Exact Mass63.961899
PSA66.23000
LogP0.41060
Additional Property2.26 (21 °C, vs air)
Vapor Pressure2533.5±0.0 mmHg at 25°C
Refractive Index1.510

Customs & Trade Information

HS Code2811290090

Frequently Asked Questions

What is the CAS number of SULFUR DIOXIDE?

The CAS number of SULFUR DIOXIDE is 7446-09-5.

What are the molecular formula and molecular weight of SULFUR DIOXIDE?

SULFUR DIOXIDE has molecular formula O2S and molecular weight 64.064 g/mol.

What are the upstream and downstream products of SULFUR DIOXIDE?

For SULFUR DIOXIDE, Downstream Products: Thionyl bromide, Phosphoryl bromide, hypobromous dithioperoxyanhydride.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "SULFUR DIOXIDE (CAS 7446-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23865-4 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.