含量(以干基计)
|
≥98.0%
|
重金属(Pb计)
|
≤0.001%
|
透光度(E10%1cm:400nm)
|
≥95%
|
干燥失重(105℃,3h)
|
≤1.0%
|
砷(以As计,GT-3)
|
≤0.0001%
|
灼烧残渣
|
≤0.2%
|
比旋光度[α]25D
|
19.0°~ +21.5°
|
PH(10%水溶液)
|
5.0~ 6.0
|