223476

Potassium bisulfate

reagent grade

• Synonyma: Potassium hydrogen sulfate
• Lineární vzorec: KHSO₄
• Číslo CAS: 7646-93-7
• Molekulová hmotnost: 136.17
• EC Number: 231-594-1
• MDL number: MFCD00011404
• UNSPSC Code: 12352302
• eCl@ss: 38030413
• PubChem Substance ID: 329752310
• NACRES: NA.21

Vlastnosti

• grade: reagent grade
• Quality Level: 200
• 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

Popis

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.

Bezpečnostní informace

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H314,H335
• pcodes: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable