OPTICAL BRIGHTENER EBF

C.I.185 CAS：12224-41-8

CHEMICAL NAME: 2.5-bis-(benzoxazol-2-) thiophene

MOLECULAR FORMULA: C₁₈H₁₀N₂O₂S

MOLECULAR WEIGHT: 318.35 (As international relative Atom Mass 1997)

SPECIFICATIONS:

Item	Indices
Chemical Structure	Benzoxazole thiophene
Appearance	Light yellow powder
Purity	≥ 98.5%
Smell	No special smell
Melting point	216-220℃
Ash	≤ 0.1%
Volatile content	≤ 0.4%

PROPERTY:

Optical brightener EBF is insoluble in water and easily soluble in organic solvents and concentrated acid.

It has good stability to hydrogen peroxide, sodium chlorite, sodium hydrosulfite and sodium dithionate.

It’s especially very stable to alkaline discharging agent.

USEAGE:

Used in terylene, acetate fiber, chinlon, cotton-polyester blended fabric and polyolefin plastics (PE, PP, PS, PVC etc), ABS engineering plastics, synthetic glass etc.

DOSAGE: (per 100 kg material):

General material: 30~100 g, 0.03%-0.1%

Transparent material: 30~50 g, 0.03-0.05%

PACKAGE: Net 25KG packaged in paper pox or cardboard drum inside plastic bag.

Or can be customized according to customer requirements.

TRANSPORTATION: Avoid inversion, sunlight, moisture and crash. Avoid damage the package.

STORAGE: Should be stored in cool, dry and ventilate place, and storage term should not exceed 2 years.

SHANGHAI JECA COLOR CO.,LTD.

EBF