CAS No.: | 97-67-6 |
---|---|
Formula: | C4h6o5 |
EINECS: | 202-601-5 |
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Testing Item
|
Standard
|
Result
|
Assay
|
>99%
|
99.4
|
Specific rotation
|
-1.6~-2.6
|
-2.0
|
State of solution
|
pass
|
qualified
|
Sulfate
|
<0.02
|
<0.02
|
Chloride
|
<0.004
|
<0.004
|
Fumaric acid
|
<0.5
|
0.04
|
Maleic acid
|
<0.05
|
<0.01
|
Heavy metals
|
<10.0
|
<10.0
|
As
|
<2.0
|
<2.0
|
Lead Pb
|
<2.0
|
<2.0
|
Note: Special requirements of particle size should be negotiated by both suppliers and customers
|