Potassium bisulfate
SIGALD/223476 - reagent grade
Synonym: Potassium hydrogen sulfate
CAS Number: 7646-93-7
Empirical Formula (Hill Notation): HKO4S
Molecular Weight: 136.17
EC Number: 231-594-1
MDL Number: MFCD00011404
Linear Formula: KHSO4
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 223476-500G
This image depicts SKU: 223476-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 223476-1KG
This image depicts SKU: 223476-1KG
| acid number | 35‑37%(as H2SO4) |
| concentration | 35.0-37.0% H2SO4 (titration) |
| density | 2.32 g/mL at 25 °C (lit.) |
| form | powder or crystals |
| grade | reagent grade |
| InChI | 1S/K.H2O4S/c;1-5(2,3)4/h; |
| InChI key | CHKVPAROMQMJNQ-UHFFFAOYSA |
| mp | 214 °C (lit.) |
| Quality Level | 200  |
| SMILES string | [K+].OS([O-])(=O)=O |
| 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. |
| Application: | 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. |
| 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. |
| General description: | 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). |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 500 g in poly bottle |
| Symbol |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H314 - H335 |
| Precautionary statements | P260 - P271 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34-37 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2509 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 214 °C (lit.) |
| Density | 2.32 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |