Sulfur dioxide solution, 1 X 100 g (247626-100G)

MilliporeSigma® (Sigma-Aldrich)

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247626-100G

$82.70

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Sulfurous acid (H₂SO₃), a weak diprotic acid, is formed when sulfur dioxide (SO₂) dissolves in water. Sulfurous acid is a complex mixture of various hydrates of SO₂ and the ions H₃O⁺, S₂O₅²⁻ and HSO³⁻. The predominant species present in the solution are pH dependent. Sulfurous acid can be used as a reducing agent in chemical synthesis.

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SDS

ign. residue	≤0.005%
density	1.03 g/mL at 25 °C (lit.)
form	liquid
anion traces	chloride (Cl-): ≤5 ppm
CAS_NO	7782-99-2
InChI	1S/H2O3S/c1-4(2)3/h(H2,1,2,3)
SMILES string	OS(O)=O
concentration	≥6%
grade	ACS reagent
cation traces	Fe: ≤5 ppm
Quality Level	200
assay	≥6% SO2 basis (by Na2S2O3, titration)
InChI key	LSNNMFCWUKXFEE-UHFFFAOYSA-N
cation traces	heavy metals (as Pb): ≤2 ppm
vapor density	2.3 (vs air)

Sulfur dioxide solution, 1 X 100 g (247626-100G)

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Sulfur dioxide solution, 1 X 100 g (247626-100G)

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