ChemicalBook > CAS DataBase List > Potassium bisulfate

Potassium bisulfate

Product Name
Potassium bisulfate
CAS No.
7646-93-7
Chemical Name
Potassium bisulfate
Synonyms
POTASSIUM HYDROGEN SULFATE;POTASSIUM BISULPHATE;POTASSIUM HYDROGEN SULPHATE;Kaliumhydrogensulfat;salenixum;Potassium bisuL;POTASSIUM BISULFATE;monopotassiumsulfate;acidpotassiumsulfate;POTASSIUM PESULPHATE
CBNumber
CB9370612
Molecular Formula
HKO4S
Formula Weight
136.16884
MOL File
7646-93-7.mol
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Potassium bisulfate Property

Melting point:
214 °C(lit.)
Boiling point:
decomposes [STR93]
Density 
2.32 g/mL at 25 °C(lit.)
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
Specific Gravity
2.322
color 
White
PH
1 (50g/l, H2O, 20℃)
Water Solubility 
soluble
Sensitive 
Hygroscopic
Merck 
14,7613
Stability:
Stable. Moisture sensitive.
CAS DataBase Reference
7646-93-7(CAS DataBase Reference)
EPA Substance Registry System
Potassium bisulfate (7646-93-7)
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Safety

Hazard Codes 
C
Risk Statements 
34-37
Safety Statements 
26-36/37/39-45
RIDADR 
UN 2509 8/PG 2
WGK Germany 
1
RTECS 
TS7200000
F 
3
TSCA 
Yes
HS Code 
2833 29 80
HazardClass 
8
PackingGroup 
II
Toxicity
LD50 orally in Rabbit: 2340 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
223476
Product name
Potassium bisulfate
Purity
reagent grade
Packaging
500g
Price
$185
Updated
2024/03/01
Sigma-Aldrich
Product number
223476
Product name
Potassium bisulfate
Purity
reagent grade
Packaging
1kg
Price
$232
Updated
2024/03/01
Sigma-Aldrich
Product number
1.04885
Product name
Potassium hydrogen sulfate
Purity
for analysis EMSURE? Reag. Ph Eur
Packaging
500g
Price
$127
Updated
2024/03/01
Sigma-Aldrich
Product number
1.04885
Product name
Potassium hydrogen sulfate
Purity
for analysis EMSURE? Reag. Ph Eur
Packaging
25kg
Price
$5470
Updated
2024/03/01
Alfa Aesar
Product number
A12428
Product name
Potassium hydrogen sulfate, 97%
Packaging
100g
Price
$42.4
Updated
2024/03/01
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Potassium bisulfate Chemical Properties,Usage,Production

Chemical Properties

Potassium bisulfate, also known as potassium hydrogen sulfate and potassium acid sulfate, KHS04 is water soluble, white deliquescent crystals,which melt at 214°C. Potassium bisulfate dissolved in water undergoes ionization to form K+, H+, SO42-. It is used in wine making, fertilizer manufacture, and as a flux and food preservative.

Uses

Potassium hydrogen sulfate is used in the conversion of tartrates to bitartrates in wine. It serves as a disintegrating agent in analytical chemistry and as an intermediate in the preparation of potassium persulfate by electrolysis. It is also employed in the manufacturing of fertilizers.

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.

Preparation

Potassium bisulfate is typically made by heating potassium sulfate (K2SO4) with sulfuric acid. The acid provides the hydrogen needed to convert the salt (K2SO4) to the corresponding acid salt (KHSO4).

General Description

Potassium hydrogen sulfate is a colorless crystalline solid with a sulfur odor. It may cause illness from ingestion. If heated to high temperatures it may emit toxic fumes. It is used as flux in analysis of ores and siliceous Compounds.

Air & Water Reactions

Fused salt is deliquescent, Soluble in water, yielding a corrosive acidic solution.

Reactivity Profile

Acidic salts, such as Potassium bisulfate , are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Safety Profile

Moderately toxic by ingestion. A corrosive irritant to the skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of SOx and K2O. Can form an explosive mixture. See also SULFATES.

Purification Methods

Crystallise it from H2O (1mL/g) between 100o and 0o. It is also formed when a warm solution of K2SO4 in conc H2SO4 is cooled down.

Potassium bisulfate Preparation Products And Raw materials

Raw materials

Sodium pyruvate

Preparation Products

1-BROMO-4-(METHYLSULPHONYL)-2-NITROBENZENE 4-Chloro-alpha-methylstyrene 4-METHYLUMBELLIFERYL PHOSPHATE DISODIUM SALT 2-Fluoropyridine-5-carboxaldehyde 8-Hydroxyquinoline potassium sulfate TRIOXSALEN 1-BOC-4-ETHYL-4-PIPERIDINECARBOXYLIC ACID Acrolein tert-Butyl N-(2-bromoethyl)carbamate 4-Vinylphenol Boc-Lys(Boc)-OH Sodium pyruvate Cefpodoxime proxetil POTASSIUM METABISULFITE Pyruvic acid N-Boc-D-proline Ethyl N-Boc-4-methylpiperidine-4-carboxylate 2-SULFANYLISONICOTINIC ACID Tirofiban L-Methionine 9-VINYLANTHRACENE 3-Chlorostyrene 4-Acetoxystyrene
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View Lastest Price from Potassium bisulfate manufacturers

Hebei Jingbo New Material Technology Co., Ltd
Product
Potassium bisulfate 7646-93-7
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000000
Release date
2023-12-04
Hebei Yanxi Chemical Co., Ltd.
Product
Potassium bisulfate 7646-93-7
Price
US $0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-11-16
Hebei Chuanghai Biotechnology Co,.LTD
Product
Potassium bisulfate 7646-93-7
Price
US $30.60/KG
Min. Order
1KG
Purity
99%
Supply Ability
5000kg
Release date
2024-08-21

7646-93-7, Potassium bisulfate Related Search:

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