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(1) fluorescent brightenening agent vbl is a typical representative of bis(triazinylamino)stilbene derivative. (2) it can be soluble in 80 times soft water and shows anion character and the ph value resistant to acid and alkali is 6-11 and the expected ph value of dyeing bath is 8-9.

China red pigment powder, china red pigment powder suppliers and manufacturers directorysource a large selection of red pigment powder products at pigment powder ,mica powder pigment cosmetic ,organice color pigment from china alibaba

Optical brightening agent er-iii cas no. 13001-40-6 chemical name: 1,4'-bis(2-cyanostyryl) benzole specifications appearance slight yellow greenish powder melting point 288-201 ℃ purity ≥99% moisture content ≤0.5 application optical brightener 199 is used to the whitening process of dacron, acetic fiber, polyamide fiber, blends of terylene-cotton etc.

Fluorescent whitening agent cf(oba 184) optical brightener ci184 optical brightener ob for plastic us $23.00$23.00 / kilogram

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