| FLUORESCENT WHITENING AGENT 127 | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. |
40470-68-6 |
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| EINECS NO. | 254-935-6 | |
| FORMULA |
C30H26O2 | |
| MOL WT. | 418.5 | |
| H.S. CODE | ||
| TOXICITY | ||
| SYNONYMS | C.I.Fluorescent 378; 4,4กฏ-bis(2-methoxystyryl)-1,1กฏ-biphenyl; | |
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1,1'-Biphenyl-4,4'-bis[2-(methoxyphenyl)ethenyl]; CBS-127; Fluorescent Brightener 378; |
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| SMILES |
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
Yellowish crystalline powder | |
| MELTING POINT | 216 - 222 C | |
| BOILING POINT | ||
| SPECIFIC GRAVITY |
1.23 | |
| SOLUBILITY IN WATER | Insoluble | |
| AUTOIGNITION | ||
| pH | ||
| VAPOR DENSITY | ||
| NFPA RATINGS | ||
| FLASH POINT |
> 150 C | |
| STABILITY | This compound is sensitive to heat and shock | |
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GENERAL DESCRIPTION & APPLICATIONS |
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| Fluorescent Whitening Agents (also called optical brightener) absorb high energy radiation in the ultraviolet to violet region (330nm-380nm) on the part of characteristic molecules and emit lower energy radiation in blue region in visible spectrum (400nm-450nm), which yields the counteracting the yellowing appearance. FWA should be transparent on the substrate and should not absorb the visible region of the spectrum. Many FWAs contain the structure of stilbene. Stilbene is an unsaturated hydrocarbon with the formula C6H5CH=CHC6H5. Other nucleus of FWAs are coumarin, imidazole, 1,3-diphenyl-2-pyrazolin, naphtalimid, benzoxazole and heteroaromatics. FWAs are used in thermoplastics, detergents, plastic films, fibers, papers, adhesives and leathers to enhance the appearance. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
white to off-white powder | |
| PURITY |
99,0% min | |
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VOLATILE CONTENT |
0.5% max | |
| TRANSPORTATION | ||
| PACKING | 20kgs in Fiber drum | |
| HAZARD CLASS | ||
| UN NO. | ||
| OTHER INFORMATION | ||
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