4-4'-Bis(2-sulfostyryl)biphenyl
Time: 2017-04-24 22:32:27

4-4'-Bis(2-sulfostyryl)biphenyl

Synonyms

Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-;

2,2'-((1,1'-Biphenyl)-4,4'-diyldivinylene)bis(benzenesulphonic) acid;

Tinopal CBS;

Tinopal CBS-X;

Category

Anionic Surfactant

> Sulfonate

>> Aryl Sulfonate

>>> Distyrylbiphenyl Group Sulfonate

>>>> Distyrylbiphenyl Sulfonate

Chemical Numbering System

CASRN38775-22-3

EINECS254-121-0

Molecular Formula & Molecular Weight

Molecular Formula: C28H22O6S2

Molecular Weight: 518.60

Structure

Properties

Appearance    (1), solid.

Solubility    insoluble in water.

Stability    stable.

Risk    Solid form: flammable material; irritation, irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.

GHS (Rev.7) label:  

Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    biodegradable.

Characteristics    excellent UV absorbing, dispersing, emulsifying abilities. Blue shade. Resistant to chlorine bleach, oxygen bleach. Resistant to acid, alkali.

Synthesis

Refer to:

NIU Yu-lan, XUE Xiao-li, CHEN Zhi-min. Improvement of synthesis of fluorescent whitening agent CBS. China Surfactant Detergent & Cosmetics, 2003, 33(3): 197-199, etc.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Actives, %, ≥

95.0

Test Methods

(1), Actives

 

2, Hazardous substances indexes

Item

Hazardous substances indexes

Solid

Heavy metals (as Pb), mg/Kg, ≤

20

As, mg/Kg, ≤

3

Test Methods

(1), Heavy metals (as Pb)

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30799 The test method of food detergents - Determination of heavy metals

(2), As

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30797 The test method of food detergents - Determination of total arsenic

3, Further explanation

(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.

Major Uses

1, Typical applications

Use as fluorescent brightener.

Use as UV absorbing agent.

2, Household cleaning products

Use as fluorescent brightener widely. For example: washing powder.

Manufacturers