Potassium Biphthalate, Crystal, Reagent Special, ACS
Phthalic Acid Monopotassium Salt; Potassium Acid Phthalate; Potassium Hydrogen Phthalate
Acidimetric standard.
For use as an acidimetric standard, this material should be lightly crushed and dried for 2 hours @ 120°C.
|
Chemical Formula |
C8H5KO4 |
|
Molecular Weight |
F.W. 204.22 |
|
CAS # |
877-24-7 |
|
Safety Information |
|
|
Health Hazard |
1 |
|
Fire Hazard |
1 |
|
Reactivity |
0 |
|
|
|
|
Test |
Specification |
| Assay (C8H5O4K; Dried Basis) | 99.95-100.05% |
| pH of a 0.05M Solution @ 25.0 ± 0.2°C | 4.00-4.02 |
| MAXIMUM LIMITS | |
| Insoluble Matter | 0.005% |
| Chloride compounds (as Cl) | 0.003% |
| Sulfur compounds (as S) | 0.002% |
| Heavy metals (as Pb) | 5 ppm |
|
UPS limit |
150 lb |
Chemical information and descriptions have been provided by Spectrum Chemicals.
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