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zhejiang Hongda chemical co.,ltd
China Manufacturer with main products: optical brighteners |
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| Place of Origin: | zhejiang hangzhou in China |
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Specifications
Optical Brightener OB-1 Chemical name: 2,2-(1,2-Ethenediyldi-4, 1-phenylene)bisbenzoxazole Structure: Formula:C28H18N2 O2 Molecular Weight: 414.4 C.I. Number: 393 Appearance: greenish yellow powder Melting Point: 359?#1057; Purity: >98.0% Application: mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization. Packing: 25kg per fiber drum
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