Optical Brightener C.I. 140 SWN CAS 91-44-1
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 Name | Optical brightener SWN |
| Chemical Name | Optical brightener 140
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) |
| CAS No. | 91-44-1 |
| Molecular Formula | C14H17NO2 |
| Molecular Weight | 231.3 |
| Appearance | White crystal powder |
| Assay | 98.5% min |
| Melting point | 68.5-72.0℃ |
Whitening for wool, silk, nylon, acetic acid, and triacetate fibers.
Whitening for cotton, cellulose, and acrylic fibers. The dosage ranged from 0.05% to 2.0%.
Added to synthetic detergent powder used in washing fabrics.
How should I take optical brightener 140?
Contact: erica@zhuoerchem.com
Payment terms
T/T(telex transfer), Western Union, MoneyGram, BTC(bitcoin), etc.
Lead time
≤25kg: within three working days after payment received.
＞25kg: one week
Sample
Available
Package
1kg per bag, 25kg per drum, or as you required.
Storage
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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