BP98 version
Index name index
Content % 99.5-101.0
Calcium is less than or equal to % 0.02
Heavy metals (Pb) are less than or equal to % 0.001
Chloride is less than or equal to % 0.01
Sulphate (SO4) is less than or equal to % 0.015
Oxalate (C2O4) is less than or equal to % 0.035
Dry weight loss % or less (100-105 ° C constant weight) 0.2
GB15358-94.
Project reference
Monohydrate products
Dl-tartaric acid content (in dry basis), % is greater than 99.5
Melting point range 200-200 ° C
Sulphate (in SO4) % is less than 0.04
The heavy metal Pb % is less than 0.001
Arsenic (in As) % is not equal to 0.0002
Free oxide
The heat reduced by % is less than or equal to 11.5
The burn residue % is less than 0.10
Anhydrous product
Dl-tartaric acid content (in dry basis), % is greater than 99.5
Melting point range 200-200 ° C
Sulphate (in SO4) % is less than 0.04
The heavy metal Pb % is less than 0.001
Arsenic (in As) % is not equal to 0.0002
Free oxide
The reduction in heating is less than or equal to 0.5
The burn residue % is less than 0.10