|
Item |
Standard value |
|
APPEARANCE |
white crystal powder |
|
CONTENT (%): |
99.0MIN |
|
CHLORIDE (%): |
0.02MAX |
|
SULFATE (%): |
0.02MAX |
|
NTA (%): |
- |
|
HEAVY METAL (ppm): |
10MAX |
|
FERRUM (ppm): |
10MAX |
|
CHELATING VALUE mg(CaCO3)/g |
265MIN |
|
PH VALUE |
4.0-5.0 |
|
Transparency(50g/L, 60℃ water solution, stirring for 15 min) |
Clear and transparent without impurities |