Citric acid is a weak organic acid,white, granular powder. It occurs naturally in produce, and in particular, citrus fruits such as limes, oranges, and lemons.
APPLICATION
It is mainly used as acidulant, flavoring agent, preservative and antistaling agent in food and beverage industry. It is also used as antioxidant, plasticizer and detergent in chemical, cosmetics and cleaning industries.
SPECIFICATION
|
Test Item
|
Standard
|
Result
|
|
Characteristics
|
White crystal
|
White crystal
|
|
Identification
|
Pass the test
|
Pass the test
|
|
Light Transmittance
|
/
|
100.0%
|
|
Clarity & color of solution
|
Pass test
|
Pass test
|
|
Assay
|
99.5-100.5%
|
99.82%
|
|
Water
|
≤1.0%
|
0.09%
|
|
Sulphated ash
|
≤0.1%
|
0.02%
|
|
Sulphate
|
≤150ppm
|
<20ppm
|
|
Oxalate
|
≤360ppm
|
<20ppm
|
|
Calcium
|
/
|
<20ppm
|
|
Heavy metals
|
≤10ppm
|
<1ppm
|
|
Iron
|
/
|
<1ppm
|
|
Chloride
|
/
|
<5ppm
|
|
Readily carbureted substances
|
Not exceeding the standard
|
0.31
|
|
Bacterial endotoxins
|
≤0.5IU/mg
|
<0.5IU/mg
|
|
Aluminium
|
≤0.2ppm
|
<0.2ppm
|
|
Arsenic
|
/
|
<1.0ppm
|
|
Mercury
|
/
|
<0.1ppm
|
|
Lead
|
/
|
<0.5ppm
|
|
Tridodecylamine
|
/
|
<0.1ppm
|
