T es t in g I t e m |
St anda r d |
Re sul t |
A ssa y |
99 . 0 % ~ 10 0 . 5 % |
99 . 7 2 % |
A ppea r a nc e |
W
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a
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t
W
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c r y s t a l s Cr y s t a ll i n e P o w de r |
con f o r m s |
S olub i ty |
E asil y sol u bl e i n w a t e r |
con f o r m s |
I den t i f i ca t i o n |
P osi t i v e R ea c t io n |
P osi t i v e |
M el t in g P oin t |
A bou t 1 90 ºC |
190 . 6 ºC |
Co ppe r |
≤5 mg / k g |
<5 m g / k g |
He a v y M e t al s |
≤10 m g / k g |
< 1 0 m g / k g |
M e r cu ry |
≤0 . 1 m g / k g |
< 0 .1 mg / k g |
Lead |
≤2 mg / k g |
<2 m g / k g |
Ar sen i c |
≤3 mg / k g |
<3 m g / k g |
O x ali c A c i d |
≤0 .2 % |
< 0 . 2 % |
Ir o n |
≤2 mg / k g |
<2 m g / k g |
Ca dm i um (Cd) |
<1 m g / k g |
<1 m g / k g |
I mpu r i ty E |
≤0 .2 % |
< 0 . 2 % |
Lo s s o n Dr y i n g |
≤0 .4 % |
< 0 . 4 % |
S ulph a te A sh (R e sid u e On I g n i t ion ) |
≤0 .1 % |
< 0 . 1 % |
S pec i f i c Opt i c a l R o t a t i o n |
+ 20 . 5 ºC ~ + 21 . 5 ºC |
21 . 0 8 ºC |