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13800 Potassium hydrogen sulfate, fused, ACS, mixture of potassium pyrosulfate, K2S2O7, and potassium bisulfate, KHSO4

CAS Number

Stock No. Size Price ($) Quantity Availability
13800-22 100g 44.20
13800-36 500g 194.00
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Potassium hydrogen sulfate, fused, ACS, mixture of potassium pyrosulfate, K2S2O7, and potassium bisulfate, KHSO4


Chemical Properties

Formula Weight
Fused Powder
Melting point
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Soluble in water, isopropyl alcohol and acetone.

Grade Specifications

Maximum level of impurities: Acidity (as H2SO4) 37.5-38.6%, H2O 2.5%, Cl 0.002%, PO4 0.001%, Ca 0.002%, Mg 0.001%, Heavy metals (as Pb) 0.001%, Fe 0.002%, Na 0.01%


Potassium hydrogen sulfate is used in the conversion of tartrates to bitartrates in wine. It is also used as a disintegrating agent in analytical chemistry. Further, it is used to make fertilizers and in the preparation of potassium persulfate. In addition to this, it is used as a catalyst in organic preparations.


Hygroscopic. Incompatible with oxidizing agents, strong reducing agents, acids, alcohols and alkalis.

Literature References

Yue, C. J.; Yao, S. S.; Gu, L. P. Diatomite-entrapped hydrosulfate catalysts for the efficient nitration of toluene with nitric acid. J. Porous Mater. 2015, 22 (2), 455-464.

Sudarma, I. M.; Kusnandini, A.; Darmayanti, M. G. Chemical Transformation of Eugenol Isolated from leaves of Syzygium aromaticum to its new isothiocyanate derivatives. J. Nat. Prod. 2015, 8, 27-32.

GHS Hazard and Precautionary Statements

Hazard Statements: H303-H314-H318-H335

May be harmful if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage. May cause respiratory irritation.

Precautionary Statements: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Do not breathe dusts or mists. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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