China supplier natural borneol flake for eye medicines

1.  China supplier natural borneol flake for eye medicines;

Testing Items

Standard Requirements

Testing Result

Color and Appearance

Colorless transparent or white translucent flaky crisp crystal,clean aroma, spicy and cool taste, heavy smoke and  a blaze of yellow when lighting.

Qualified

Melting Point

204°C-209°C

206.0°C

Specific Rotation(20°C)

+34°~+38°

+34.55°

Identification

In the chromatography of samples, the same pot  took an identical color at the corresponding positions of standard one.

Qualified

Solubility

This sample mixes in all proportions with absolute ethyl alcohol,trichloromethanen, or diethyl ether, not mixes with water.

Qualified

Isoborneol

In the chromatography of samples, No pot occurs at the corresponding positions of standard one.  

Qualified.

Camphor

Should not be more than 3.0%

0.4%

Content Test

  B-borneol should not be less than 96.0%

96.6%

 1. We are professional manufacturer with our own planting base and factory, we also accept OEM&ODM;