68921-42-6 Usage
Description
FOOD BLUE NO. 1 ALUMINUM LAKE is a water-insoluble pigment created by adsorbing a water-soluble dye onto an insoluble substratum, such as alumina, through the use of a precipitant like aluminum chloride. This laking process results in a partially precipitated product that, when completed, yields a stable and heat-resistant pigment. The chemical association between the components of a lake may involve various types of interactions, including ionic bonds, hydrogen bonds, and van der Waals forces. Lakes generally contain 10 to 40 percent by weight of the straight color and approximately 1 to 4 percent of the weight of the lake as the cationic precipitant, with the remaining 56 to 89 percent consisting primarily of substrata.
Uses
Used in Food Industry:
FOOD BLUE NO. 1 ALUMINUM LAKE is used as a color additive to provide a specific color intensity and shade to various food products. Its chemical bonding with substrata promotes light and heat stability, making it suitable for use in food products that may be exposed to varying temperatures and light conditions.
Used in Drug Industry:
FOOD BLUE NO. 1 ALUMINUM LAKE is also used as a coloring agent in药品 (drugs), where its stability and non-water solubility can help prevent color migration and maintain the appearance and quality of the product.
Used in Cosmetic Industry:
In the cosmetics industry, FOOD BLUE NO. 1 ALUMINUM LAKE serves as a pigment to impart color to various cosmetic products. Its stability and insolubility in water contribute to the longevity and consistency of the color in cosmetic formulations.
Regulatory Information:
The current regulations for lakes, including FOOD BLUE NO. 1 ALUMINUM LAKE, were issued under section 203 of the Color Additive Amendments of 1960. Before a lake can be used in a food, drug, or cosmetic product, each batch must be certified by the FDA. This certification process ensures that the concentrations of impurities are within specified levels and that the batch complies with applicable regulations. Lakes represent approximately 25 percent of the total poundage of color additives certified by the FDA, with about 80 percent being FD & C lakes and the remaining 20 percent being D&C lakes.
Preparation
2-Formylbenzenesulfonic acid and 3-(Ethyl(phenyl)amino)methyl)benzenesulfonic acid (2 Moore) condensation, oxidation, and then will product into aluminum salt deposit color.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 68921-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,2 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 68921-42:
(7*6)+(6*8)+(5*9)+(4*2)+(3*1)+(2*4)+(1*2)=156
156 % 10 = 6
So 68921-42-6 is a valid CAS Registry Number.
