Potassium hydrogen phthalate

Base Information

• Chemical Name: Potassium hydrogen phthalate
• CAS No.: 877-24-7
• Molecular Formula: C8H6O4.K
• Molecular Weight: 204.224
• Hs Code.: 29173990
• Mol file: 877-24-7.mol

Synonyms:1,2-Benzenedicarboxylicacid, monopotassium salt (9Cl);Phthalic acid, monopotassium salt (8Cl);Hydrogen potassium phthalate;AI3-51765;Monopotassium 1,2-benzenedicarboxylate;Monopotassium phthalate;Potassium acid phthalate;Potassium biphthalate;

Chemical Property of Potassium hydrogen phthalate

Chemical Property:

• Appearance/Colour: White crystalline powder
• Vapor Pressure: 2.14E-06mmHg at 25°C
• Melting Point: 295-300 °C
• Boiling Point: 378.3 °C at 760 mmHg
• Flash Point: 196.7 °C
• PSA: 77.43000
• Density: 1.006g/mLat 20°C
• LogP: -0.25170
• Storage Temp.: Store at RT.
• Solubility.: H2O: 100 mg/mL, clear, colorless
• Water Solubility.: 80 G/L (20 ºC)

Purity/Quality:

99% ^*data from raw suppliers

Potassium Hydrogen Phthalate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi,C
• Hazard Codes: Xi,C,T
• Statements: 36/38-36/37/38-34-61-60
• Safety Statements: 26-36-24/25-22-45-36/37/39-53

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Uses: As primary standard for preparing volumetric alkali solutions, also as a buffer in pH determinations. As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations. Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters. It acts as a buffer in pH determination. It finds application as a useful standard for total organic carbon testing. Potassium hydrogen phthalate [KHP; pH(S) = 4.005 (25 °C)] is a certified secondary standard reference material used as a calibration buffer standard for pH instruments or pH electrodes.

Technology Process of Potassium hydrogen phthalate

There total 5 articles about Potassium hydrogen phthalate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

N-phthaloylglycine (4702-13-0) → potassium hydrogen phthalate (877-24-7)

Guidance literature:

With potassium hydroxide; In ethanol; at 20 ℃; for 4h;

DOI:10.1016/j.ica.2018.04.045

Reference yield:

benzene-1,2-dicarboxylic acid (88-99-3,73607-73-5) → potassium hydrogen phthalate (877-24-7)

Guidance literature:

With potassium hydroxide; In water;

DOI:10.1016/j.physb.2010.03.004

Reference yield:

C8H4(2)HO4(1-)*K(1+) → potassium hydrogen phthalate (877-24-7)

Guidance literature:

With water-d2; In water; at 34.9 ℃; Equilibrium constant;

DOI:10.1021/ja00295a017

upstream raw materials:

benzene-1,2-dicarboxylic acid

N-phthaloylglycine

phthalic anhydride

Downstream raw materials:

methane

trans-1,2-cyclohexanedicarboxylic acid

benzoic acid

copper ortho-phthalic acid γ-picoline complex

Refernces

• 1、 Nadeem, Muhammad,Bhatti, Moazzam H.,Yunus, Uzma,Mehmood, Mazhar,Asif, Hafiz Muhammad,Mehboob, Shoaib,Fl?rke, Ulrich. "Synthesis and characterization of unique new lithium, sodium and potassium coordination polymers". . p. 179 - 188. Retrieved 2018/05/09.
• 2、 Jarret, Ronald M.,Saunders, Martin. "A New Method for Obtaining Isotopic Fractionation Data at Multiple Sites in Rapidly Exchanging Systems". . p. 2648 - 2654. Retrieved 2007/10/02.