16521-38-3 Usage
Description
Food Blue 1:1 is a blue fine powder that is odorless and exhibits properties of light, heat, and salt resistance. It is hardly soluble in water, oil, and most solvents, but can be scattered and mixed with water, oil, liquid, and solid powder. This product is suitable for oil products and is particularly useful for shading items where water-soluble colorants are difficult to use. It is made by adding a certain amount of strong HCL and diluting it with a certain volume of two potassium hydrogen sulfate solutions, with a maximum absorption wavelength of 612 + 2 nm.
Uses
Used in Food Industry:
Food Blue 1:1 is used as a colorant for oil products, providing a vibrant blue color that is resistant to light, heat, and salt. Its insolubility in water and most solvents makes it ideal for applications where water-soluble colorants are difficult to use.
Used in Cosmetics Industry:
Food Blue 1:1 can be used as a colorant in cosmetic products, particularly in oil-based formulations, due to its resistance to light, heat, and salt, as well as its insolubility in water and most solvents.
Used in Pharmaceutical Industry:
Food Blue 1:1 may be utilized as a colorant in pharmaceutical products, especially in oil-based formulations, to provide a consistent blue color that is stable under various conditions.
Used in Other Industries:
Food Blue 1:1 can also be used in other industries where a stable blue color is required, such as in the manufacturing of paints, inks, and plastics. Its resistance to light, heat, and salt, along with its insolubility in water and most solvents, make it a versatile colorant for various applications.
Preparation
with strong sulfuric acid or low concentration fuming sulfuric acid sulphonated 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-, and then into aluminum salt deposit color.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 16521-38-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,2 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16521-38:
(7*1)+(6*6)+(5*5)+(4*2)+(3*1)+(2*3)+(1*8)=93
93 % 10 = 3
So 16521-38-3 is a valid CAS Registry Number.
InChI:InChI=1/C16H10N2O8S2.Al/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);/q;+3
