Optical Brightener CBS-X(C.I.351 )

CAS No: 27344-41-8

Molecular formula: C28H20S2O6Na2

EINECS: 254-121-0

Molecular weight: 562.6

Appearance: Greenish yellow crystal powder or granule

E (1% /cm):                        1105-1181

Indissoluble substance:       0.5%max

Solubility in water   :            25C 25g/l 
                                           70C 100g/l
                                           95C 300g/l

max in ultra-violet range:    348-350nm

Ionic character:                  anion

 Application:

Optical Brightener CBS-X(CAS#27344-41-8) is soluble in water, anionic type, maximum spectrum absorption at 348-350nm, it’s the best brightener in detergent industry and soap industry.It’s can be added at any step during producing process. It can be used as brightener for detergent, cotton, linen, silk, polyamide fiber, wool and paper. It can be added to any process of any type of detergent.

 It has good whitening effect for cellulose fiber, polyamide fiber and protein fiber. The whitening effect of its high concentration for cotton is 2.7 times of bis(triazinylamino-stilbene) brighteners, and has micro green color and dissolved with good dispersibility. High stability of sodium hypochlorite, it belongs to bleaching resistance type brightener.

 Optical Brightener CBS-X(CAS#27344-41-8) can also directly used in cotton, fibre, wool, spandex and paper to make them more white.

Dosage:

Package: Packed in 25kgs fiber drum with double PE liners, or according to customers' request.