High Purity Optical Brighteners In Textiles Slight Yellow Greenish Powder

Optical Brightener Agent 199:1 powder 98%

CHEMICAL NAME: (1-cyano styy,4-p-cyan styyll)benzole

C.I.No.: 199:1

Structural Formula:

MOLECULAR FORMULA: C₂₄H₁₆N₂

MOLECULAR WEIGHT: 332

APPEARANCE : slight yellow greenish powder

ASSAY: ≥98%

MELTING POINT:188℃~192℃

APPLICATIONS: applied to the whitening process of dacron,acetic fiber,polyamide fiber, blends of terylene-cotton.Lower luminance temperature than ER-1,high-er whitening performance than ER-l.Dosage:0.01%~0.03%