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12236-77-0

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12236-77-0 Usage

Preparation

4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, again ammoniation, make its forming metal complex (metal is the mixture of cobalt and chromium, also can use when complexation 2-Hydroxybenzoic acid).

Properties and Applications

black. Dark brown evenly powder. Solubility of 70 g/L (50 ℃). The strong sulfuric acid in blue, diluted for purple; Rare hydrochloric acid and sodium hydroxide solution in color. Used for cotton, hemp, polyamide fiber and viscose fabric such as printing and dyeing, not suitable for discharge. Standard Light Fastness Oxygen bleaching Persperation Fastness Soaping Fading Stain Fading Stain Fading Stain ISO 6 4-5 4-5 3-4 ( green ) 4-5 5(5*100℃) 4-5

Standard

Light Fastness

Fading

Stain

ISO

6

Check Digit Verification of cas no

The CAS Registry Mumber 12236-77-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,3 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12236-77:
(7*1)+(6*2)+(5*2)+(4*3)+(3*6)+(2*7)+(1*7)=80
80 % 10 = 0
So 12236-77-0 is a valid CAS Registry Number.

12236-77-0Upstream product

12236-77-0Downstream Products

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