Skip to Content
Merck
CN
All Photos(1)

Key Documents

Safety Information

24-5390

Sigma-Aldrich

Potassium disulfate

JIS special grade, ≥98.0%

Synonym(s):

Potassium pyrosulfate

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
K2S2O7
CAS Number:
Molecular Weight:
254.32
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
Assay:
≥98.0%
grade:
JIS special grade
form:
solid

grade

JIS special grade

Assay

≥98.0%

form

solid

availability

available only in Japan

pH

1.0-2.0 (25 °C, 25.5 g/L)

density

2.28 g/mL at 25 °C (lit.)

SMILES string

[K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O

InChI

1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

KAQHZJVQFBJKCK-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Pictograms

Skull and crossbonesCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Chromate dermatitis and sodium dithionite.
L M Wall
Contact dermatitis, 8(5), 291-293 (1982-09-01)
Titrimetric determination of glutaraldehyde concentrations.
T Kalina et al.
Folia morphologica, 35(2), 113-115 (1987-01-01)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service