Sulfur trioxide, stabilized

BGC Id:	730265011455
CAS No:	7446-11-9
Synonyms:	sulphur trioxide ; sulfan ; sulfuric anhydride ; so3 ; sulfuric oxide ; sulfur oxide (so3) ; sulfur trioxide ; sulfuricoxide ; schwefeltrioxid ; sulfan(r) ; sulfuroxide (so3)
Molecular Formula:	SO3
Molecular Weight:	80.06
EINECS:	231-197-3

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Synonyms:

sulphur trioxide ; sulfan ; sulfuric anhydride ; so3 ; sulfuric oxide ; sulfur oxide (so3) ; sulfur trioxide ; sulfuricoxide ; schwefeltrioxid ; sulfan(r) ; sulfuroxide (so3)

CAS:

7446-11-9

EINECS:

231-197-3

Molecular Formula:

SO3

MDL:

MFCD00011452

Properties

Molecular Weight:

80.06 g·mol−1

Density:

1.97 g/mL at 25 °C(lit.)

Melting point:

16.8 °C(lit.)

Boiling point:

44.8 °C at 760 mmHg

Solubility:

reacts violently with water

Physical Description:

needles or polymer

Safety Information

Hazard Symbols: O, T+, C

Europe standard Hazard pictograms, code and definition

Hazard Classes:

Risk Codes:

45-8-14-26-34-37-35 (R)

Safety Codes:

53-17-26-36/37/39-45-8-25-30 (S)

WGK Germany:

RID / ADR:

UN 1829 8 / PG 1

RTECS:

WT4830000

Storage temperature:

Indoors

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In addition to the providers presented here for Sulfur trioxide, stabilized with the CAS number 7446-11-9, there are other 12 providers with slightly different product names available for this CAS number.

Sulfur trioxide

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