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104883 Potassium hydrogen sulfate extra pure


About product information & SDS Downloads: All products shown on this website are based on the EU portfolio pursuant to applicable EU regulations. Safety Data Sheets (SDS) are currently not available for download via this website. Please contact our sales or customer service representative in the country.

Package Size

Product Number



1048839025 Fibre carton 25 kg
1048831000 Plastic bottle 1 kg

Product Information

Product Summary

Synonyms Potassium bisulfate
CAS number 7646-93-7
EC index number 016-056-00-4
EC number 231-594-1
Hill Formula HKO₄S
Chemical formula KHSO₄
Molar mass 136.17 g/mol
RTECS TS7200000

GHS Labeling (according to EU REGULATION (EC) No 1272/2008 (CLP))

Hazard Pictogram
icon icon
Signal Word Danger
Hazard Statement H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation.
Precautionary Statement P280: Wear eye protection/ face protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P313: Get medical advice/ attention.

Handling & Storage Information

Storage Temperature Store at +5°C to +30°C.
Storage class 8B Non-combustible, corrosive hazardous materials
WGK WGK 1 slightly hazardous to water

Physicochemical Information

Melting point 195 °C (decomposition)
Density 2.24 g/cm3 (20 °C)
Bulk Density 1140 kg/m3
pH value 1 (50 g/l, H₂O, 20 °C)


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