Potassium hydrogen phthalate, 99%

Name: Potassium hydrogen phthalate, 99%
Brand: Vaqora Chemicals
SKU: VQ-014028

About Potassium hydrogen phthalate, 99%

Potassium hydrogen phthalate (CAS 877-24-7) is an alkali metal compound offered by Vaqora Chemicals (Extra Pure grade) with a typical assay of 99%. With the molecular formula C8H5KO4, it has a molar mass of 204.22 g/mol. Systematically, it is named potassium 2-carboxybenzoate. Common synonyms include Potassium phthalate monobasic,KHP and Phthalic acid monopotassium salt.

It is supplied as a white crystals, crystalline powder. Literature values give a melting point of 295-300 °C (dec.). Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for materials research and chemical synthesis. Our customers for this product work in academic and industrial research.

Standard pack sizes are 500 g, 5 kg and 4 x 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Potassium hydrogen phthalate, 99%
Catalogue No.	VQ-014028
CAS Number	877-24-7
IUPAC name	potassium 2-carboxybenzoate
Molecular formula	C₈H₅KO₄
Molecular weight	204.22 g/mol
Exact mass	203.9825
Grade	Extra Pure
Purity / assay	99%
HSN code	29173990
InChIKey	IWZKICVEHNUQTL-UHFFFAOYSA-M
SMILES	C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
PubChem CID	23676735

Physical properties
Physical form	Crystalline
Appearance	White crystals, crystalline powder
Melting point	295-300 °C (dec.)
H-bond donors / acceptors	1 / 4
TPSA	77.4 Å²
Synonyms	Potassium phthalate monobasic,KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate,, Hydrogen potassium phthalate, Potassium acid phthalate, 1,2-Benzenedicarboxylic acid, monopotassium salt, Monopotassium phthalate, Potassium phthalate monobasic, Phthalic acid, monopotassium salt, 1,2-Benzenedicarboxylic acid, potassium salt (1:1)

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H318Causes serious eye damage

Precautionary statements: P264 + P265, P280, P305 + P354 + P338, P317

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 877-24-7

HPLC

Potassium hydrogen phthalate, for HPLC 99%+

CAS: 877-24-7
Formula: C₈H₅KO₄
MW: 204.22 g/mol

VQ-003105

AR

Potassium hydrogen phthalate, GR 99%+

CAS: 877-24-7
Formula: C₈H₅KO₄
MW: 204.22 g/mol

VQ-014029

Frequently asked questions

What is the CAS number of Potassium hydrogen phthalate, 99%?

The CAS Registry Number of Potassium hydrogen phthalate, 99% is 877-24-7. It is also known as Potassium phthalate monobasic,KHP, Phthalic acid monopotassium salt, Potassium biphthalate.

What is the molecular formula and molecular weight of Potassium hydrogen phthalate, 99%?

Potassium hydrogen phthalate, 99% has the molecular formula C8H5KO4 and a molecular weight of 204.22 g/mol. Its IUPAC name is potassium 2-carboxybenzoate.

Which grade and pack sizes of Potassium hydrogen phthalate, 99% can I order?

We supply Potassium hydrogen phthalate, 99% in Extra Pure (99%) grade, in 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium hydrogen phthalate, 99%?

Yes. Every lot of Potassium hydrogen phthalate, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Potassium hydrogen phthalate, 99% be shipped internationally?

Yes. Potassium hydrogen phthalate, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.