247626

Sulfur dioxide solution

Manufacturer: Sigma Aldrich

CAS Number: 7782-99-2

Synonym(S): Sulfurous acid, Sulfurous anhydride

Select a Size

Pack Size SKU Availability Price
500 G 247626-500-G In Stock ₹ 6,354.28
100 G 247626-100-G In Stock ₹ 7,534.20
2 KG 247626-2-KG In Stock ₹ 11,918.33

247626 - 500 G

₹ 6,354.28

In Stock

Quantity

1

Base Price: ₹ 6,354.28

GST (18%): ₹ 1,143.77

Total Price: ₹ 7,498.05

grade

ACS reagent

Quality Level

200

vapor density

2.3 (vs air)

Assay

≥6% SO2 basis (by Na2S2O3, titration)

form

liquid

concentration

≥6%

ign. residue

≤0.005%

density

1.03 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 ppm

cation traces

Fe: ≤5 ppmheavy metals (as Pb): ≤2 ppm

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Description

  • General description: 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.
  • Application: Sulfurous acid can be used as a reducing agent in chemical synthesis.

SAFETY INFORMATION

Pictograms

GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H332

Precautionary Statements

P261 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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ACS reagent

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2.3 (vs air)

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≥6% SO2 basis (by Na2S2O3, titration)

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≥6%

ign. residue:
≤0.005%

density:
1.03 g/mL at 25 °C (lit.)

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chloride (Cl-): ≤5 ppm

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Fe: ≤5 ppmheavy metals (as Pb): ≤2 ppm

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