optical brightener SWN

optical brightener SWN

optical brightener SWN (optical brightener 140) is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. optical brightener SWN (optical brightener 140) also can be used in cotton, plastic and chromatically press paint, and optical brightener SWN added into resin to whiten the fiber cellulose.

Product Details

optical brightener SWN (optical brightener 140)

other name: optical brightener 140, fluorescent brightener SWN, fluorescent whitener SWN

C.I. 140

CAS: 91-44-1

Chemical name: 7-diethylamino-4-methylcoumarin, 7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one, Methyl-7-(diethylamino)coumarin, Coumarin 1, MDAC
Molecular formula: C14H17NO2
Molecular weight: 231.3
EINECS: 202-068-9

The same name: Uvitex SWN; SWR (Uvitex); FBO (Blankophor); VPA (Rylux); LS (Delft Weiss); WNS(Blancol); WN(Kayaphor). Optical Brightener SWN, Fluorescent Whitening Agent SWN, Fluorescent Brightener SWN, C. I. 140, Optical Brightening Agent SWN, UVITEX SWN, SWR(Uvitex)


Properties:
optical brightener SWN
 (optical brightener 140) is soluble in ethanol, acidic liquor, resin and varnish. In water, the solubility of optical brightener SWN (optical brightener 140) is only 0.006 percent. optical brightener SWN (optical brightener 140) 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: 72-74° C
Assay: 99% min (HPLC)
Volatile Content: 0.3%max
Ash Content: 0.1%max


Application:
optical brightener SWN (optical brightener 140) is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. optical brightener SWN (optical brightener 140) also can be used in cotton, plastic and chromatically press paint, and optical brightener SWN (optical brightener 140) added into resin to whiten the fiber cellulose


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

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