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13471

Sodium sulfite

puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)

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About This Item

Linear Formula:
Na2SO3
CAS Number:
7757-83-7
Molecular Weight:
126.04
NACRES:
NA.22
PubChem Substance ID:
329750185
UNSPSC Code:
12352302
EC Number:
231-821-4
MDL number:
MFCD00003503
Assay:
95.0-100.0% (iodometric)
Form:
solid

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Product Name

Sodium sulfite, puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)

InChI key

GEHJYWRUCIMESM-UHFFFAOYSA-L

InChI

1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

SMILES string

[Na+].[Na+].[O-]S([O-])=O

grade

puriss.

assay

95.0-100.0% (iodometric)

form

solid

quality

meets analytical specification of Ph. Eur., BP, NF

impurities

residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.05% thiosulfate (S2O3)

pH

9.0-10.5 (25 °C, 126 g/L)

anion traces

chloride (Cl-): ≤200 mg/kg

cation traces

Fe: ≤10 mg/kg
Se: ≤10 mg/kg
Zn: ≤10 mg/kg

suitability

complies for appearance of solution

Quality Level

100

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1 of 4

This Item
31454901916SX0785
Sodium sulfite puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)

Sigma-Aldrich

13471

Sodium sulfite

Sodium sulfite puriss. p.a., reag. Ph. Eur., anhydrous, 98-100.0% (iodometric)

Sigma-Aldrich

31454

Sodium sulfite

Sodium sulfite anhydrous, Redi-Dri™, reagent grade, ≥98%

Sigma-Aldrich

901916

Sodium sulfite

Sodium sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

SX0785

Sodium sulfite

form

solid

form

solid

form

powder or crystals

form

powder

assay

95.0-100.0% (iodometric)

assay

98-100.0% (iodometric)

assay

≥98%

assay

≥98.0% (iodometric)

Quality Level

100

Quality Level

100

Quality Level

-

Quality Level

200

grade

puriss.

grade

puriss. p.a.

grade

-

grade

-

pH

9.0-10.5 (25 °C, 126 g/L)

pH

9.0-10.5 (25 °C, 126 g/L)

pH

9-10.5 (25 °C, 126 g/L)

pH

8.8-10 (20 °C, 50 g/L in H2O)

cation traces

Fe: ≤10 mg/kg, Zn: ≤10 mg/kg, Se: ≤10 mg/kg

cation traces

As: ≤0.2 mg/kg, Ca: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Pb: ≤5 mg/kg, Se: ≤10 mg/kg, Zn: ≤10 mg/kg

cation traces

-

cation traces

Fe: ≤0.001%, heavy metals (as Pb): ≤0.001%

supp_hazards

EUH031

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
STBK9566
STBL4780
STBK8585
STBK5651
STBK5131

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