Sulfur dioxide solution

SIGALD/247626 - ACS reagent, ≥6%

Synonym: Sulfurous acid; Sulfurous anhydride

CAS Number: 7782-99-2
Empirical Formula (Hill Notation): H₂O₃S
Molecular Weight: 82.08
EC Number: 231-973-1
MDL Number: MFCD00011335
Linear Formula: H₂SO₃
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-247626-100G	100 g	$80.20 1/EA		Add To Favorites
45-247626-500G	500 g	$142.00 1/EA		Add To Favorites
45-247626-2KG	2 kg	$262.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

anion traces	chloride (Cl^-): ≤5 ppm
assay	≥6% SO₂ basis (by Na₂S₂O₃, titration)
cation traces	Fe: ≤5 ppm
	heavy metals (as Pb): ≤2 ppm
concentration	≥6%
density	1.03 g/mL at 25 °C (lit.)
form	liquid
grade	ACS reagent
ign. residue	≤0.005%
InChI	1S/H2O3S/c1-4(2)3/h(H2,1,2,3)
InChI key	LSNNMFCWUKXFEE-UHFFFAOYSA-N
Quality Level	200
SMILES string	OS(O)=O
vapor density	2.3 (vs air)

Packaging:	100, 500 g in glass bottle
Packaging:	2 kg in glass bottle

Symbol	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
Risk Statements	20-34
Safety Statements	26-36/37/39-45
RIDADR	UN 1833 8 / PGII
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥6% SO₂ basis (by Na₂S₂O₃, titration)
Density	1.03 g/mL at 25 °C (lit.)
UNSPSC	12352300

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