D Tartaric Acid

Name of product

D - tartaric acid

MFG DATE

2013/07/30

Retest Date

2014/07/29

Batch No.

20130730

Analysis No.

2013/07/30

Quantity

5000kg

Sample from

Warehouse

Test item

Specification

Result

Description

White crystals or white
powder

White crystals or
white powder

Specific Rotation
[alpha/25/D]

—12~ —12.8

—12.19

Sulphate(so4)

<0.05% Not more than 0.1%

<0.01%

Heavy metals(pb)

<0.001% Not more than 0.001%

<0.001%

Residue on Ignition

<0.1% Not more than 0.1%

0.00043

Loss on drying

<0.5% Not more than 0.5%

0.19%

Assay

>99.0% Not less than 99%

99.88%

Optical purity(ee value)

>99.0% Not less than 99%

99.73%

Clarity test

In accordance with the standard of experiment

Qualified