Potassium bisulfate

≥99.99% trace metals basis

Potassium hydrogen sulfate
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.


≥99.99% trace metals basis


crystals and lumps


214 °C (lit.)

acid number

35‑37%(as H2SO4)


2.32 g/mL at 25 °C (lit.)

SMILES string




InChI key


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Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 2509 8 / PGII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Michele Ghidotti et al.
Analytica chimica acta, 1034, 92-101 (2018-09-09)
Volatile fatty acids (VFAs) are among the most important parameters in process monitoring of anaerobic digestion plants for biogas production. The concentration of single VFA species is typically determined by direct injection of the acidified aqueous phase of digestate samples...
Markus Paananen et al.
Bioresource technology, 193, 97-102 (2015-06-30)
High-alkali low-temperature polysulfide pulping (HALT) was effectively utilised to prevent major polysaccharide losses while maintaining the delignification rate. A yield increase of 6.7 wt% on wood was observed for a HALT pulp compared to a conventionally produced kappa number 60...
Tian-Li Ma et al.
BMC plant biology, 12, 161-161 (2012-09-12)
Potassium (K+) is an important nutrient ion in plant cells and plays crucial roles in many plant physiological and developmental processes. In the natural environment, K+ deficiency is a common abiotic stress that inhibits plant growth and reduces crop productivity....
Michael B Ellis et al.
Journal of insect physiology, 54(12), 1516-1521 (2008-09-30)
Terrestrial organisms need to limit evaporation from their bodies in order to maintain a homeostatic water balance. Owing to a large surface to volume ratio, arthropods are particularly susceptible to desiccation and have evolved behavioural and physiological mechanisms to conserve...
Igor Moudrakovski et al.
The journal of physical chemistry. A, 114(1), 309-316 (2010-01-09)
A set of potassium sulfates presenting a variety of sulfur environments (K(2)SO(4), KHSO(4), K(2)S(2)O(7), and K(2)S(2)O(8)) has been studied by (33)S solid state NMR at 21 T. Low natural abundance (0.75%) and small gyromagnetic ratio of (33)S presented a serious...

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