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223697

Sigma-Aldrich

Potassium hydrogensulfate, fused

ACS reagent, Mixture of K2S2O7 and KHSO4

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250 G
$223.44

$223.44

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Estimated to ship onApril 12, 2025


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250 G
$223.44

About This Item

MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NB.24
grade:
ACS reagent
form:
powder

$223.44

List Price$266.00Save 16%

Estimated to ship onApril 12, 2025


Request a Bulk Order

grade

ACS reagent

Quality Level

form

powder

concentration

37.5-38.6% H2SO4 in NaOH (titration)

impurities

≤0.002% H2SO4
≤0.01% insolubles
≤2.5% water

acid number

37.5‑38.6%

density

2.512 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.002%
phosphate (PO43-): ≤0.001%

cation traces

Ca: ≤0.002%
Fe: ≤0.002%
Mg: ≤0.001%
Na: ≤0.01%
heavy metals: ≤0.001%

SMILES string

[K+].[K+].[K+].OS([O-])(=O)=O.[O-]S(=O)(=O)OS([O-])(=O)=O

InChI

1S/3K.H2O7S2.H2O4S/c;;;1-8(2,3)7-9(4,5)6;1-5(2,3)4/h;;;(H,1,2,3)(H,4,5,6);(H2,1,2,3,4)/q3*+1;;/p-3

InChI key

ZXJZSJHWYNTTSK-UHFFFAOYSA-K

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pictograms

Skull and crossbonesCorrosion

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Electrochemical Behavior of Molten V2O5- K2S207-KHSO4 Systems.
Petrushina IM, et al.
Journal of the Electrochemical Society, 144(2), 532-539 (1997)

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