High quality 99% Fl...

High quality 99% Fluorescent Brightener 184 CAS No 7128-64-5

High quality 99% Fluorescent Brightener 184 CAS No 7128-64-5

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1 Kilogram

Negotiable

  • Min.Order :1 Kilogram
  • Purity: >99%
  • Payment Terms : L/C,T/T,Other

Keywords

Fluorescent brightener OB Optical Brightener OB Optical Brightener agent OB

Quick Details

  • Appearance: light yellow powder
  • Application:Dyestuff Intermediates
  • PackAge:1-5KG/Tin or Bag,25KG/Drum, 200KG/Drum
  • ProductionCapacity:1000 |Metric Ton|Year
  • Storage:Cool Dry Place
  • Transportation:by sea or by air

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Details:

Optical brighetener OB
Optical brightener OB is a fluorescent whitening agent of the thiophenediyl benzoxazole class. The product is useful in plastics, man-made fibers, printing inks and coatings, flexible PVC and polyethylene. Dosage: 0.01%~0.05%.

Key Attributes

  • Colors appear more brilliant
  • Environmentally friendly
  • Excellent brightening ability
  • Produce a bluish tinge, masking yellowness
  • Whiter-than-white appearance

Specification

 

Optical Brightener OB

Appearance

light yellow powder 

Main ingredient

Benzoxazole type

CAS No.

7128-64-5

Formula

C26H26N2O2S

EINECS

230-426-4

Melting Point

198-203 ºC

Purity

≥99%

Fineness

over 100 meshes

Features: 

Light yellow powder. Tasteless.

Soluble in alkanes, fats, mineral oils, paraffin and most organic solvents.

Has a spectral maximum absorption of 375nm (in ethanol) and a maximum emission wavelength of 435nm (in ethanol).

Application: 

Good whitening agent for PVC,PS,PE,PP,ABS, PMMA, POM, Thermoplastic, thermoset plastic, Acetate fiber, paint, coating and printing ink, etc.

Using method

Polyvinyl chloride whitening: 0.01 ~ 0.05% improved brightness: 0.0001 ~ 0.001% polystyrene 0.0001 ~ 0.05% ABS 0.01 ~ 0.05%  polyene hydrocarbon colorless matrix: 0.0005 ~ 0.001% white matrix: 0.005 ~ 0.05%

Shelf life

2 years.

Packing & Storage:

25KG fiber drums with PE liner or carton box. Keep in dry place away from light.

Dosage:

It is widely used in thermoplastic such as PVC, PE, PP, ABS, PS, and unsaturated resin; and paint, ink and oil soluble coatings.

 

Percentage of weight with plastic raw material:

PVC whitening: 0.01~0.05%;       to improve the light intensity: 0.0001~0.001%

Polystyrene :0001~0.001%;        ABS:0.01~0.05%;

Polyolefin matrix: 0.0005~0.001%  White matrix: 0.005~0.05%

 

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