$177

Part Number: MIL-179922-500G
Lead Time: 2-3 weeks
Quantity: each
Size: 500 grams

Category: ACS Grade Chemicals

Description
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Potassium Phthalate Monobasic ACS Reagent, Acidimetric Standard &, 500 Gram

Synonym: KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate

CAS Number 877-24-7
Linear Formula HOOCC6H4COOK
Molecular Weight 204.22
Beilstein/REAXYS Number 3637128
EC Number 212-889-4
MDL number MFCD00013070
PubChem Substance ID 24850834

Grade	ACS reagent
Assay	99.95-100.05% dry basis
Quality	acidimetric standard
Impurities	≤0.002% S compounds ≤0.003% Cl compounds ≤0.005% insolubles
PH	4.00-4.02 (25.0°C±0.2°C, 0.05 M)
mp	295-300°C (dec.) (lit.)
Cation traces	Fe: ≤5 ppm Na: ≤0.005% heavy metals (as Pb): ≤5 ppm

Application

Potassium phthalate monobasic may be used as a primary standard in acidimetric titration[1] and also to prepare potassium phthalate buffer solution for pH calibration.

Safety Information

RIDADR NONH for all modes of transport
WGK Germany 2
RTECS CZ4326000

Warnings

Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.