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Potassium hydrogen phthalate, 1 kg

≥99,5 %, p.a., ISO
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Phthalic acid monopotassium salt, Potassium biphthalate
Empirical formula C8H5KO4
Molar mass (M) 204,23 g/mol
Density (D) 1,636 g/cm³
Boiling point (bp) >300 °C
Flash point (flp) 197,3 °C
Melting point (mp) 303,7 °C
WGK 1
CAS No. 877-24-7
EG-Nr. 212-889-4

Buffer substance and titrimetric standard substance for alkalimetry.

€317.15/Pack Qty. 

excl. VAT. | 1 kg per Pack Qty.

Art. No. P750.2

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Potassium hydrogen phthalate
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P750.1 500 g plastic

€170.95

P750.2 1 kg plastic

€317.15

P750.3 2.5 kg plastic

€650.40

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Downloads / MSDS


General information

Salts for Analysis

Our salts for analysis are manufactured under strict production guidelines. Analytical purity and best quality reliably characterize each batch. Salts in p.a. quality made by Carl ROTH meet the high requirements for reproducible results. Most of our salts are additionally specified according to international standards like ACS and ISO.

Definition:
p.a.: pro analysi (for analysis)ACS: American Chemical SocietyISO: International Standard Organisation


Salts


ROTI®Calipure standards for your calibration needs

Carl ROTH offers an extensive range of calibration and control standards. These products are manufactured from highly pure starting material and are specially tested for each application. The corresponding batch-specific certificate of analysis is available online. Each product series offers excellent value for money.


Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Assay (acidim.)≥99,5 %
In H2O insoluble matter≤0,003 %
Loss on drying (110 °C)≤0,05 %
Nitrogen compounds (as N)≤0,001 %
Sulphur compounds (as S)≤0,002 %
Chloride (Cl)≤0,002 %
Lead (Pb)≤0,0005 %
Cadmium (Cd)≤0,0005 %
Calcium (Ca)≤0,001 %
Chromium (Cr)≤0,001 %
Iron (Fe)≤0,0005 %
Cobalt (Co)≤0,0005 %
Copper (Cu)≤0,0005 %
Magnesium (Mg)≤0,001 %
Manganese (Mn)≤0,0005 %
Sodium (Na)≤0,01 %
Nickel (Ni)≤0,0005 %
Zinc (Zn)≤0,0005 %
Heavy metals (as Pb)≤0,0005 %