|
Appearance
|
Silvery white soft, waxy surface
|
|
Assay (as Na)
|
Min 98%
|
|
Melting point
|
About 97 deg C
|
|
Chlorine and bromine (as Cl)
|
Max 0.002%
|
|
Sulphur (S)
|
Max 0.003%
|
|
Barium (Ba)
|
Max 0.0005%
|
|
Boron (B)
|
Max 0.0005%
|
|
Calcium (Ca)
|
Max 0.001%
|
|
Lithium (Li)
|
Max 0.002%
|
|
Silver (Ag)
|
Max 0.002%
|