Items

Specification

Appearance:

White crystalline powder

Dimethylaminoethanol:

36.9-37.6%

Condition of water solution:

Confirms

Loss on drying:

Not more than 0.5%

pH value(in 1% solution):

3.2-3.8

Heavy metals(Pb):

Not more than 10ppm

Arsenic (As):

Not more than 1ppm

Hg::

Not more than 3ppm

Cd:

Not more than 3ppm

Melting point:

110 -114 Celsius degree

Specific rotation:

-17.5 to -18.5

Assay:

Not less than 99%

Microbial:

Total bacterial count:

Yeast & moulds:

Escherichia coli:

Salmonella:

Coliforms:

Not more than 3000/g

Not more than 100/g

Negative

Negative

Negative