223476
Potassium bisulfate
reagent grade
Synonyme(s) :
Potassium hydrogen sulfate
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A propos de cet article
Formule linéaire :
KHSO4
Numéro CAS:
Poids moléculaire :
136.17
PubChem Substance ID:
eCl@ss:
38030413
UNSPSC Code:
12352302
NACRES:
NA.21
EC Number:
231-594-1
MDL number:
Grade:
reagent grade
Form:
powder or crystals
Service technique
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reagent grade
Quality Segment
form
powder or crystals
concentration
35.0-37.0% H2SO4 (titration)
mp
214 °C (lit.)
acid number
35‑37%(as H2SO4)
density
2.32 g/mL at 25 °C (lit.)
SMILES string
[K+].OS([O-])(=O)=O
InChI
1S/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1
InChI key
CHKVPAROMQMJNQ-UHFFFAOYSA-M
General description
Potassium bisulfate is a water soluble inorganic salt mainly used as a preservative, as a flux and also in the manufacture of fertilizers.
Potassium bisulfate is an inorganic potassium salt. On heating it from 300 to 700°C, it transforms to molten form and the reactions occurring in this transition have been investigated by Raman spectra. Its electrical conductance values have been evaluated (T = 0-700C, Pressure = upto 4000bars).
Application
Potassium bisulfate (Potassium hydrogen sulfate) may be employed as a catalyst in the synthesis of butyl paraben and methyl cinnamate. It may also be used for the gravimetric estimation of beryllium in beryl.
Potassium bisulfate may be used:
- As a catalyst for the preparation of butyl paraben from p-hydroxybenzoic acid and n-butyl alcohol.
- As a promoter for the synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives via Biginelli reaction in ethylene glycol.
- As an acid catalyst for the synthesis of ethyl tert-butyl ether (ETBE) from ethanol and tert-butyl alcohol via reactive distillation.
- As a dehydrating agent for the synthesis of pyruvic acid from tartaric acid.
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Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
target_organs
Respiratory system
Classe de stockage
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Raman spectral studies of molten potassium bisulfate and vibrational frequencies of S2O7 groups.
Walrafen GE, et al.
J. Chem. Phys. , 37(3), 662-670 (1962)
Reactive distillation for synthesizing ethyl tert-butyl ether from low-grade alcohol catalyzed by potassium hydrogen sulfate.
Matouq M, et al.
Industrial & Engineering Chemistry Research, 35(3), 982-984 (1996)
Craig BD and Anderson DS
Handbook of Corrosion Data, 634-634 null