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Home » Product Directory » Chemicals » Pigment & Dye » Optical Brightener SWN

Optical Brightener SWN

Optical Brightener SWN
Optical Brightener SWN
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Product Description

Fluorescent Whitening Agent SWN C. I. 140
Chemical name: 7-diethylamino-4-methylcoumarin
Molecular formula: C14H17NO2
Molecular weight: 231. 3
CAS NO.: 91-44-1
C. I: 140
The same name: Optical Brightener SWN, Fluorescent Whitening Agent SWN, Fluorescent Brightener SWN ,C.I.140, Optical Brightening Agent SWN,Uvitex SWN; SWR (Uvitex); FBO (Blankophor); VPA (Rylux); LS (Delft Weiss); WNS(Blancol); WN(Kayaphor).

Properties:
YC Fluorescent Whitening Agent SWN is soluble in ethanol, acidic liquor, resin and varnish. In water, the solubility of SWN is only 0. 006 percent. It functions by emitting red light and present purple tincture.
Specifications:
Appearance: White crystal powder
Solubility: Dissolve in acid water, ethanol and other organic solvent
Melting Point: 72-74C
Assay: 99% min (HPLC)
Volatile Content: 0. 3%max
Ash Content: 0. 1%max

Application:
It is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. It also can be used in cotton, plastic and chromatically press paint, and added into resin to whiten the fiber cellulose

Package: Packing in 25kg fiber drum or according to the requirement of the customers.

   
Origin:  China
Company: Beijing Yangcun Chemical Co., Ltd.

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