Pigment Red 53:1/Red Lake C
C .I. NO:Pigment Red 53:1
CAS NO: 5160-02-1
Molecular Formula: C17H13ClN2O4S
Molecular Weight: 376.81
Manufacturing Methods :2-Amino-5-chloro-4-methylbenzenesulfonic aciddiazotization, and Naphthalen-2-ol coupling, and then into barium salt.
Properties and Applications:yellow red, pale pink. Slightly soluble in water and ethanol, not soluble in acetone and benzene. In concentrated sulfuric acid for cherry red, dilution after brown light red precipitation; In 10% sodium hydroxide solution slightly soluble, for yellow; In the potassium hydroxide ethanol solution for dark brown light red. Pigment solution to join concentrated hydrochloric acid red precipitation; Join concentrated sodium hydroxide solution have brick red precipitation.
Close to International Similar grades:
Aquapak Lake Red LC-SCH
Aquapak Lake Red LC-SU
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