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60359

Sigma-Aldrich

Potassio ftalato monobasico

BioUltra, ≥99.5% (T)

Sinonimo/i:

Acido ftalico, KHP, Potassio biftalato, Potassio idrogeno ftalato

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About This Item

Formula condensata:
HOOCC6H4COOK
Numero CAS:
877-24-7
Peso molecolare:
204.22
Beilstein:
3637128
Numero CE:
212-889-4
Numero MDL:
MFCD00013070
Codice UNSPSC:
12161700
ID PubChem:
57651755
NACRES:
NA.21

Nome Commerciale

BioUltra

Livello qualitativo

200

Saggio

≥99.5% (T)

Stato

powder or crystals

Impurezze

insoluble matter, passes filter test

Perdita

≤0.05% loss on drying, 110 °C

pH

3.5-5.0 (25 °C, 0.1 M in H2O)

Punto di fusione

295-300 °C (dec.) (lit.)

Solubilità

H2O: 0.1 M at 20 °C, clear, colorless

Anioni in tracce

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

Assorbimento

cut-off at 309 nm in H2O at 0.1 M

Stringa SMILE

[K+].OC(=O)c1ccccc1C([O-])=O

InChI

1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
IWZKICVEHNUQTL-UHFFFAOYSA-M

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Applicazioni

Potassium hydrogen phthalate may be used as a buffering agent or as a standard for total organic carbon (TOC) calibration and may be used to asses the oxidating activity of CNTs/TiO(2) photoanodes. Potassium hydrogen phthalate solution may be used as a liquid filter to reduce the effects of Rayleigh scattering on collected Raman spectra.

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

387.1 °F - Pensky-Martens closed cup

Punto d’infiammabilità (°C)

197.3 °C - Pensky-Martens closed cup

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
BCCG8674
BCCG3667
BCCD1058
BCCC7353
BCCC2702

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TOC standard solution according to EN 1484-H3, according to DIN 38409-H3, 1000 mg/L potassium hydrogen phthalate in water (stabilized), Certipur®

Supelco

1.09017

TOC standard solution

Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) Certipur®

Supelco

1.01965

Potassium hydrogen phthalate

Potassium nitrate puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

Sigma-Aldrich

31263

Potassium nitrate

TOC 1000 mg/L Calibration Standard certified reference material

Supelco

TOC1000

TOC 1000 mg/L Calibration Standard

TOC standard according to ISO/CEN EN1484, 1000 mg/L±10 mg/L

Supelco

76067

TOC standard

J E A Saunders et al.
The Review of scientific instruments, 81(1), 013108-013108 (2010-02-02)
Broadband XeCl excimer lasers operating at 308 nm are not currently used in the field of gas phase vibrational Raman spectroscopy (VRS). An explanation as to why alternative wavelengths, and in particular tuneable, narrowband lasers are currently preferred for gas
Maria Cristina Fossi et al.
Marine pollution bulletin, 64(11), 2374-2379 (2012-09-12)
Baleen whales are potentially exposed to micro-litter ingestion as a result of their filter-feeding activity. However, the impacts of microplastics on baleen whales are largely unknown. In this case study of the Mediterranean fin whale (Balaenoptera physalus), we explore the
H Fromme et al.
Environment international, 61, 64-72 (2013-10-10)
Phthalates have been used for decades in large quantities, leading to the ubiquitous exposure of the population. In an investigation of 63 German daycare centers, indoor air and dust samples were analyzed for the presence of 10 phthalate diesters. Moreover
Juanjuan Feng et al.
Journal of chromatography. A, 1268, 16-21 (2012-11-07)
Because of the occurrence of ion exchange between high-ionic-strength solution and anions of polymeric ionic liquids (PILs), PILs based solid-phase microextraction (SPME) fibers were rarely used in direct immersion mode to high-salt-added samples. In this work, a novel double-confined PIL
Hanne Frederiksen et al.
Environmental science & technology, 47(2), 958-967 (2012-12-14)
Urinary phthalate excretion is used as marker of phthalate exposure in epidemiological studies. Here we examine the reliability of urinary phthalate levels in exposure classification by comparing the inter- and intrasubject variation of urinary phthalate metabolite levels. Thirty-three young healthy
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