Reported in EPA TSCA Inventory.

DOT Classification:  8; Label: Corrosive

The Potassium bisulfate is the potassium salt of bisulfate anion, with the molecular formula KHSO₄. It belongs to the product categories of Inorganics; Inorganic Salts; Potassium; Synthetic Reagents. Its EINECS registry number is 231-594-1. With the CAS registry number 7646-93-7, its IUPAC name is called potassium hydrogen sulfate. 

Physical properties of Potassium bisulfate: (1)ACD/LogP: -1.03; (2)ACD/LogD (pH 5.5): -5.53; (3)ACD/LogD (pH 7.4): -5.53; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)#H bond acceptors: 4; (7)#H bond donors: 2; (8)Enthalpy of Vaporization: 62.94 kJ/mol; (9)Boiling Point: 330 °C at 760 mmHg; (10)Vapour Pressure: 3.35E-05 mmHg at 25°C.

Preparation: this chemical can be prepared by K₂CO₃ and H₂SO₄. The reaction is as the following:

K₂CO₃ + H₂SO₄ → K₂SO₄↓+CO₂↑+H₂O

Uses of Potassium bisulfate: This compound is commonly used in the conversion of tartrates to bitartrates in wine. Potassium bisulfate is also used as a disintegrating agent in analytical chemistry.

When you are using this chemical, please be cautious about it as the following:
This chemical may destroy living tissue on contact and may cause burns. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: OS(=O)(=O)[O-].[K+]
(2)InChI: InChI=1S/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1
(3)InChIKey: CHKVPAROMQMJNQ-UHFFFAOYSA-M

The toxicity data is as follows: