Potassium disulfate PurReagent, >=97%

PurReagent


Linear Formula:  K2S2O7
Molecular Weight:  254.33 g/mol
CAS Number: 7790-62-7

Properties

Water Solubility 25.4 g/l at 20 °C
Autoignition temp. > 400 °C
Assay Purity >=97%
B pt. NA
M pt. 335 °C
Density 2.28 g/mL at 25 °C (lit.)
Form Solid

Safety Information

Hazard Statement(s) H314,H331
Precautionary Statement  P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
GHS Pictogram
Signal word Danger
HS Code NA
Storage Temp. Room Temperature
Storage Class 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
UN Number 2923

Description

Application
Used as a flux in chemical and metallurgical analyses to dissolve refractory metal oxides and minerals. Employed in laboratory sample preparation and fusion techniques. Used in the production of certain chemicals and pigments. Acts as a catalyst or reagent in some chemical processes.

Purpose
Its main purpose is to facilitate the decomposition or dissolution of difficult-to-process materials making them suitable for chemical analysis or further processing.

General Description
Potassium disulfate also known as potassium pyrosulfate is a white solid inorganic salt formed by heating potassium bisulfate. It is strongly acidic and acts as a dehydrating and fluxing agent.