Name of index
|
High-class
|
Grade-1
|
Appearance
|
Clear,colorless liquid,no visible impurity
|
|
Dimethylformamide,%ge
|
99.8
|
99.5
|
Methanol,%
|
50
|
100
|
Color,(Pt-Co)
|
5
|
10
|
Refractive Index
|
1.427-1.429
|
š
|
H2O,%
|
0.05
|
0.10
|
Formic acid,mg/kg
|
30
|
50
|
Di-methylamine,mg/kg
|
15
|
30
|
PH(20% Water Solution)
|
6.5-8.0
|
6.5-9.0
|
Fe, mg/kg ˜
|
0.05
|
-
|