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Thermo Scientific™
Potassium hydrogen phthalate, 99%
CAS: 877-24-7 | C8H5KO4 | 204.222 g/mol
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Catalog number A12895.0B
also known as A12895-0B
Price (USD)
143.65
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159.00Save 15.35 (10%)
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Quantity:
1000 g
Price (USD)
143.65
Online Exclusive
159.00Save 15.35 (10%)
Each
Chemical Identifiers
CAS877-24-7
IUPAC Namepotassium 2-carboxybenzoate
Molecular FormulaC8H5KO4
InChI KeyIWZKICVEHNUQTL-UHFFFAOYSA-M
SMILES[K+].OC(=O)C1=CC=CC=C1C([O-])=O
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Specifications
Specification Sheet
Specification SheetAppearance (Color)White
FormCrystals or powder or crystalline powder or fused solid or flakes
Assay (Aqueous acid-base Titration)≥98.5 to ≤101.5%
Identification (FTIR)Conforms
Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination. It finds application as a useful standard for total organic carbon testing.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination. It finds application as a useful standard for total organic carbon testing.
Solubility
Soluble in water. Slightly soluble in alcohol.
Notes
Incompatible with strong oxidizing agents.
Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination. It finds application as a useful standard for total organic carbon testing.
Solubility
Soluble in water. Slightly soluble in alcohol.
Notes
Incompatible with strong oxidizing agents.
RUO – Research Use Only
General References:
- Kahr, B.; Bullard, T.; Kurimoto, M.; Yoreo, J. J. Complex organic guests in simple crystals: potassium hydrogen phthalate as case study. Cryst. Res. Technol. 2013, 48 (10), 849-863.
- Sudhahar, S.; Kumar, M. K.; Jayaramakrishnan, V.; Muralidharan, R.; Kumar, R. M. Effect of Sm+ Rare Earth Ion on the Structural, Thermal, Mechanical and Optical Properties of Potassium Hydrogen Phthalate Single Crystals. J. Mater. Sci. Technol. 2014, 30 (1), 13-18.