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1 Kilogram |
FOB Price: USD 1.0000 |
Pyrogallic Acid chemical synthesis 99.8% pyrogallol pharmaceutical synthesis 1,2,3-Trihydroxybenzene for pesticides
Specification:(Enterprise standard of China)
quality specification |
Standard value |
||
Analysis Pure |
Chemical Pure |
Industrial Grade
|
|
operative norm |
White cryst.powder |
White cryst.powder |
white cryst. powder |
(%) ≥ |
99.8 |
99.6 |
99.4 |
moisture content(%) ≤ |
0.5 |
0.5 |
0.5 |
m.p℃ |
132-134 |
131-135 |
130-136 |
Residue of ignition (%) ≤ |
0.025 |
0.05 |
0.1 |
insolubility in water |
clarify
|
clarify
|
clarify
|
sulfates (SO²¯))(%) ≤ |
0.005 |
0.01 |
0.01 |
Chloride (Cl)(%) ≤ |
0.001 |
0.002 |
0.002 |
gallic acid |
qualified |
qualified |
|
acetone solution |
light yellow to colorless colorless colorless colorless |
yellow to colorless |
|
PH |
4.0-4.4 |
3.9-4.5 |
|
Heavy metal(Pt) ≤ |
5.0 |
5.0 |
5.0 |
CAS NO:2103-57-3
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