1CAS No. 877-24-7
2Appearance: colorless orwhite crystalline powder
3purity:99.8
4suporting mixed batches
5EC No.212-889-4

Specifications for potassium hydrogen phthalate

1) Assay:                                99.8% min

2) ph(50g/L, 25C)                  3.8~4.2

3) Clarify experiment             Conform

4) Water insoluble                  0.005%

5) Loss on drying                    0.05%

6) Chloride(Cl)                        0.002%

7) Sulfate(SO4)                       0.006%

8) Sodium(Na)                        0.01%

9)Iron(Fe)                                0.0005%

10)Heavy Metal(Pb)               0.0005%

 Properties