Nicho Company Limited
FLUORESCENT WHITENING AGENT
Characterization : Fluorescent Whitening Agent is an optical brightener (fluorescent whitening agent) of the biphenyl class, suitable for the optical brightening of polymers at all stages of processing.
Chemical Name : 4,4’-bis(2-methoxystyryl)-1,1’-biphenyl
CAS Number : 40470-68-6

Structure


                                

Molecular weight : 418.5g/mol
Applications : Fluorescent Whitening Agent is highly effective in polymer substrates such as acrylics, thermoplastic polyurethane, polyvinylchloride, styrene homo- and copolymers, polyolefins, adhesives, and other organic substrates.
Main applications include fibers, molded articles, films and sheets. Additional applications include clear lacquers, pigmented lacquers, paints, printing inks and synthetic leather.
Fluorescent Whitening Agent can be used as a tracer in a variety of applications.
Features/Benefits
Fluorescent Whitening Agent features excellent resistance to heat, exceptional whitening properties, good light fastness and low volatility. It has a brilliant bluish-greenish cast, is readily soluble in organic solvents and features good compatibility in various substrates. The product is especially suitable for applications such as films and fiber.
Fluorescent Whitening Agent enhances the whiteness of the substrate. In combination with dyes, the product produces particularly bright shades. It is suitable for packaging applications but local regulations must be observed.
Guidelines for use and dosage
The dosage should be 0.01-0.05% on weight of plastic. Put Fluorescent Whitening Agent Fluorescent Whitening Agent into plastic pellets and mix the mixture thoroughly before shaping the plastic products.

Specification

Item

Indices

Appearance

Yellowish powder

Purity

99.85%

Ash

0.1%max

Volatile content

0.5%max

Particle size

100 meshes


Physical properties

Melting Range
216-222
Flashpoint

150

Specific Gravity (20)

1.23g/cm3

max(CHCl3)/K

360nm/167.0

Solubility (20)

% w/w

Water

0.01

Acetone 0.5
Dimethylacetamide 1.4
Chloroform 0.4
Ethyl acetate 0.1
n-Hexane 0.01
Methanol 0.1
Methylene chloride 0.4

Handling & Safety : Fluorescent Whitening Agent requires no special safety measures, provided the usual precautions for handling chemical are observed. Avoid dust formation and ignition sources.
Packing & storing : Packaged in fiber drum with PE liner, 20kg each. Stored in dry and cool place
 
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Nicho Co., Ltd.
29/195 Ram-Intra 14, Lane 17-1, Tarang, Bangken, Bangkok, 10230 Thailand,
Tel :: +662 362 4233 (auto) Fax : +662 362 4239
email : nicho@truemail.co.th