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SAFC

Potassium disulfite

E 224

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Synonym(s):
Potassium disulfite, Potassium metabisulfite, Potassium pyrosulfite
Empirical Formula (Hill Notation):
K2O5S2
CAS Number:
16731-55-8
Molecular Weight:
222.32
MDL number:
MFCD00167605
E Number:
E224
EC Index Number:
240-795-3

Quality Level

400

form

solid

pH

3.0-4.5 (20 °C, 50 g/L in H2O)

mp

150 °C (decomposition)

application(s)

pharma/biopharma processes

storage temp.

15-25°C

InChI

1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

InChI key

RWPGFSMJFRPDDP-UHFFFAOYSA-L

Related Categories

General description

We offer a range of high quality critical raw materials plus the documentation and expertise to help our customers meet stringent regulatory requirements. Our SAFC® portfolio of high-quality products withstands strict quality control procedures.

Application

Potassium disulfite shows preservative and antioxidant properties. Potassium disulfite E224 is suitable for use in pharmaceutical processes and as food additive.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany
SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H318 - H335

Hazard Classifications

Eye Dam. 1 - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH031

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

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