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OB1 Optical Brightener

OB1 Optical Brightener

1000 INR/Kilograms

Product Details:

  • Grade Chemical Grade
  • Purity High
  • Moisture (%) Nil
  • Application Industrial
  • Physical Form Powder
  • Supply Ability : 2000 Kilograms Per Day
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Price And Quantity

  • 650.00 - 6500.00 INR/Kilograms
  • 1000 INR/Kilograms
  • 10 Kilograms

Product Specifications

  • Chemical Grade
  • Industrial
  • High
  • Powder
  • Nil

Trade Information

  • 2000 Kilograms Per Day
  • 3-7 Days
  • All India

Product Description

Optical Brightener OB-1 is a high molecular weight fluorescent whitening agent which significantly improves the whiteness in both textile fibers and plastics.

PROPERTIES :

  • CI No. 393
  • CAS No. 1533-45-5
  • Chemical Name: 4,4' - bis (benzoxazol - 2 - yl) stibene
  • Optical Brightener OB - 1 produces very brilliant white with light reddish Blue effect which compensate for yellowing. It has good light fastness. Because of it's exceptional whitening properties, excellent resistance to heat, low volatility and easy dispersibility it is now widely used in plastic market. It has good compatibility in various substrates, in combination with dyes it produces bright shades.
  • Brightener OB - 1 is used in polymer fibers especially polyester and polyamide fibers. It is also widely used in PP, ABS, PS, HIPS, PA, PC, EVA, Rigid PVC etc.

VOLATILITY :

TGA heating rate 20OC/min in air Temperature (oC)

Volatility Weight loss (%)

380

0.2

350

2.2

400

19.4

SPECIFICATION:

APPEARANCE

Pale Yellow Crystalline Powder

MOLECULAR FORMULA

C28H18N2O2

MOLECULAR WEIGHT

414.4

ODOUR

ODOURLESS

MELTING POINT

357 + 5oC

SPECIFIC GRAVITY

1.35

ASSAY:

99%

ASH

0.5% (Max)

VOLATILE MATTER

0.5% (Max)

λMAX (Ethanol)

374 nm (Absorption)

SOLUBILITY

Insoluble in water, Methanol, Acetone, Chloroform, at 25oC

APPLICATION : (in each 100 Kgs Polymer)

  • Transparent: 0.0025% - 0.0050% (2.50 gm - 5.00 gm)
  • White : 0.01% - 0.05% (10 gm - 50 gm)
  • The concentration to be used depends on substrate and the required whitening performance.
  • BRIGHTENER OB-Spc.:

Technical Specification:

PHYSICAL APPEARANCE

Slight yellow powder powder

HPCL CONTENT

> 98%

MELTING POINT

219oC ~ 221oC

VOLATILE CONTENT

< 0.50%

ASH CONTENT

< 0.50%

TRANSMITTANCE

> 98.00T%

PURITY

Pass 200 mesh

Note : The information given is only indicative and it is essential that the user should test the suitability of the whitener for his particular process.


SUBH CHEM

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