Potassium hydrogen phthalate 99.95-100.05% ACS primary standard
Supplier: Thermo Scientific Chemicals
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033351-30
033351-A1
AA33351-30EA
111.44
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AA33351-30
AA33351-A1
Potassium hydrogen phthalate 99.95-100.05% ACS primary standard
Potassium hydrogen phthalate
As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations
Purity: 99.95-100.05
CAS No.: 877-24-7
Molecular Formula: C8H5KO4
Formula Weight: 204.23
Physical Form: Crystalline powder
Density: 1.636
Appearance: White
Odor: Odorless
Melting Point: 297° dec.
Beilstein Reference: 3637128
Merck Reference: 14,7612
MDL No.: MFCD00013070
As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations
Formula:
HOOCC₆H₄COOK Melting Pt: 297 °C (dec.) Density: 1.6362 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00013070 CAS Number: 877-24-7 EINECS: 212-889-4 Merck Index: 13,07694 |
Specification Test Results
Insoluble matter | 0.005 |
pH of a 0.05M solution | 4.0 at 25° |
Cl | 0.003% |
S | 0.002% |
Heavy Metals (as Pb) | 5 ppm |
Fe | 5 ppm |
NA | 0.00005 |
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