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Lac Dye

Lac Dye

Lac dye is extracted from Laccifer lacca by weak alkali solution and refining.
Main composition:Laccaic acid A(85%) and Laccaic acid B, C, D, E ,etc.
Properties:Red or red-purple powder. In aqueous solution its color vary with its PH. When PH is 3-5, it is orange-red, PH is 5-7 red to red-purple color. When PH is more than 7, it is red-purple. The resistance to light and heat is good in acid medium. Powder dissolves in water(0.1%), in alcohol and propanediol, pass through 80-mesh-screen.
Quality standard:

 

ITEMS
INDICES
INDICES(GB5176-85)
Appearance
Purple-red powder
Purple-red powder
Color Value       E10%1cm 490nm
 
1300-1470
1240
Drying Weightlessness        
 
10%max
10% max
Ash                
 
0.8%max
0.8% max
Heavy Metal           ppm≤
10ppm max
10ppm max
Lead              ppm≤
 
5ppm max
5ppm max
Arsenic             ppm≤
2ppm max
2ppm max
Microbiologic Quality Conforms to Standards of Food Additives

Technological Process: 
Raw Material → weak alkali solution Extracting →Purification → Powder 
Usages: Applicable to food and beverages. 
Storage: Prevent contact with air, light and heat, and store in cool condition.

Disclaimer: The information on this website is from the internet for reference only. Please refer to the actual instructions attached to the product and the final interpretation is owned by the company.




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