Muby Chemicals of Mubychem Group, established in 1976, is the original manufacturers of Specialty Chemicals, Pharmaceutical Excipient, Fragrance & Flavor chemicals, Shale Gas Fracturing Chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, China, Germany, France, Italy, Portugal etc. The products are offered as per required specifications and in correct shape and size in mm or meshs or microns as specified by the buyer.
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Potassium Hydrogen Phthalate Pure AR LR ACS Analytical Reagent Manufacturers

Potassium Hydrogen Phthalate CAS Number 877-24-7, EINECS EC Number 212-889-4, HS Code 291739**; Molecular Weight 204.22, Molecular Formula C8H5KO4

Specifications of Potassium Hydrogen Phthalate Manufacturers

MSDS Sheet of Potassium Hydrogen Phthalate Manufacturers

Potassium Hydrogen Phthalate
Commercial Pure LR AR ACS Analytical Reagent Grade
Potassium Hydrogen Phthalate

Synonyms : Potassium acid phthalate, biphthalate; Phthalic acid monopotassium salt, potassium hydrogen phthalate, Potassium phthalate monobasic, potassium 2-carboxybenzoate, hydrogen potassium phthalate, phthalic acid potassium salt, potassium biphthalate.

Potassium hydrogen phthalate, often called simply KHP, is an acidic salt compound. It is white powder, colorless crystals, a colorless solution, and an ionic solid that is the monopotassium salt of phthalic acid. The hydrogen is slightly acidic, and it is often used as a primary standard for acid-base titrations because it is solid and air-stable, making it easy to weigh accurately. It is not hygroscopic. It is also used as a primary standard for calibrating pH meters because, besides the properties just mentioned, its pH in solution is very stable.

KHP can be used as a buffering agent (in combination with hydrochloric acid (HCl) or sodium hydroxide (NaOH) depending on which side of pH 4.0 the buffer is to be) but should not be used as a buffer for decarboxylation reactions, as these will degrade the KHP and mop up the conjugation groups. KHP is also a useful standard for total organic carbon (TOC) testing.

Specifications of standard potassium hydrogen phthalate:

Assay: 99.8% min
pH: (50g/L, 25C): 3.8~4.2
Clarify of solution: Conform
Water insoluble: 0.005%
Loss on drying: 0.05%
Chloride (Cl): 0.002%
Sulfate (SO4): 0.006%
Sodium (Na): 0.01%
Iron(Fe): 0.0005%
Heavy Metal (Pb): 0.0005%
Melting Point: 295-300 °C (decomposes)

Specifications of ACS Grade potassium hydrogen phthalate:

Grade: Analytical standard (for titrimetry)
Assay: 99.95-100.05% dry basis
≤0.002% S compounds
≤0.003% Cl compounds
≤0.005% insolubles
≤5 ppm Fe
≤0.005% Na
≤5 ppm heavy metals (as Pb)
pH: 4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)
Melting Point: 295-300 °C (decomposes)


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Last 14 August, 2017

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