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Merck
CN

31260

Supelco

Potassium bisulfate

puriss. p.a., ≥99%

Synonym(s):

Potassium hydrogen sulfate

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About This Item

Linear Formula:
KHSO4
CAS Number:
7646-93-7
Molecular Weight:
136.17
EC Number:
231-594-1
MDL number:
MFCD00011404
UNSPSC Code:
12352300
PubChem Substance ID:
329753708
Assay:
≥99%
Form:
solid

Key Documents

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grade

puriss. p.a.

Assay

≥99%

form

solid

impurities

≤0.001% total nitrogen (N)

mp

214 °C (lit.)

density

2.32 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
phosphate (PO43-): ≤5 mg/kg

cation traces

Al: ≤20 mg/kg
As: ≤0.5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Na: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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

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Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H335

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Jing Li et al.
Chemosphere, 188, 139-147 (2017-09-08)
Electrochemistry coupled with granulated activated carbon catalysis of peroxymonosulfate (electro/GAC/PMS) as a novel wastewater treatment process was performed for the degradation of Acid Orange 7 (AO7) in aqueous solution. The decolorization of AO7 was compared under different permutations and combinations
Emily J Dennis et al.
Nature, 562(7725), 119-123 (2018-09-28)
DEET (N,N-diethyl-meta-toluamide) is a synthetic chemical identified by the US Department of Agriculture in 1946 in a screen for repellents to protect soldiers from mosquito-borne diseases1,2. Since its discovery, DEET has become the world's most widely used arthropod repellent and
Douglas K Rex et al.
Gastrointestinal endoscopy, 72(2), 328-336 (2010-07-22)
Low-volume bowel preparations for colonoscopy improve tolerability. We compared the efficacy, tolerability, and safety of a new low-volume sulfate solution with a standard 4-L polyethylene glycol electrolyte lavage solution as bowel preparation for colonoscopy. Multicenter, single-blind, randomized, noninferiority study. Five
Viralkumar Patel et al.
The American journal of gastroenterology, 104(4), 953-965 (2009-02-26)
Ingestion of a concentrated low-volume phosphate solution produces copious diarrhea, which cleanses the colon, but it occasionally causes renal failure due to calcium phosphate precipitation in renal tubules. We hypothesized that a concentrated low-volume sulfate solution would be an equally
Sunghee Lee et al.
Langmuir : the ACS journal of surfaces and colloids, 26(12), 9556-9564 (2010-02-18)
In this work, we have investigated the effect of potassium salts of different anions upon the crystal nucleation of K(2)SO(4) as interfacially templated by a surfactant monolayer of 1-octadecylamine (ODA), in an aqueous microdroplet system bounded by a liquid-liquid interface
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