Solvent Yellow 28
Name:C.I.Solvent Yellow 28,C.I.20010
Molecular Structure: Double azo class
C.I.Solvent Yellow 28,C.I.20010,CAS 5844-01-9,316.36,C19H16N4O,Oil Yellow GS,Oil Yellow 121,Transparent yellow S,Oil Yellow 121
Molecular Formula:C19H16N4O
Molecular Weight: 316.36
CAS Registry Number:5844-01-9
Manufacturing Methods : aniline (2 Moore) diazotization and o-Cresol coupling.
Properties and Applications: yellow to orange (mineral oil). Soluble in ethanol and toluene, hardly soluble in water. In concentrated sulfuric acid to red light brown, dilution after dark brown solution, and then have yellow brown precipitation; In hot concentrated hydrochloric acid for yellow brown solution; At 2% hot sodium hydroxide solution for red light brown. Used for alcohol, esters, hydrocarbon solvent, oil and paraffin color.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Well | 117 | 100≥180
Sublimation |
Well | Well | Well |
List of Suppliers:
Transparent yellow S,Oil Yellow 121
Haining Hongyu Chemical Co., Ltd.
Dayglo Solvent Yellow 28( Day-Glo Color Corp. )
Oil Yellow GS( Williams of Hounslow )
Oilsol Yellow GS( Rohm & Haas Co. )
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