Solvent Yellow 5
Name:C.I.Solvent Yellow 5,C.I.11380
Molecular Structure: Single azo class
C.I.Solvent Yellow 5,C.I.11380,CAS 85-84-7,247.29,C16H13N3,Fluorescent Yellow 8gf
Molecular Formula:C16H13N3
Molecular Weight: 247.29
CAS Registry Number:85-84-7
Manufacturing Methods : aniline diazotization, and Naphthalen-2-amine coupling.
Properties and Applications: red light yellow to orange. Light yellow powder. Soluble in ethanol for orange, insoluble in water. In ethanol from recrystallization out product melting point 104 ℃. In concentrated sulfuric acid for blue purple, red after diluted solution, and then have orange precipitation. Dye alcohol solution to join hydrochloric acid to red; Add sodium hydroxide solution color constant
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Good | 102 | 90 | Insoluble | Well | Good |
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Fluorescent Yellow 8gf
[…] solution with hydrochloric acid for red; Sodium hydroxide solution to join the same color. And C.I.Solvent yellow 5 the same chemical […]