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Optical brightening agent / optical brightener 4bk c.i. 113: optical brightener 4bk c.i. 113: c.i. 113: cas 12768-92-2: structure: stilbene bistriazine derivative: moisture: 5%max: appearance: slight yellow uniform powder: shade:slight bluish: strength: 100±3%: fineness(120 meshes residue): 5%max: application: mainly be used in whitening of ...

The whitening effect of optical brightener agent could be estimated by visual method which better under the sunlight or measure by colorimeter. 3.light fastness there is no international standard for testing optical brightener lightfastness in plastics.most tests used din 54004 for reference.

China detergent using oba 71 cas 16090-02-1, find details about china cxt, optical brightener 71 from detergent using oba 71 cas 16090-02-1nanjing lepuz chemical co., ltd.

China metal complex solvent dye (solvent red 132) for wood stains, find details about china fluorescent pigment, pigment from metal complex solvent dye (solvent red 132) for wood stainstianjin united star international trading co., ltd.

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135 optical brightener for plastics factory in Vietnam manufacturer with years's experience, from China.We mainly supply 135 optical brightener for plastics factory in Vietnam with top quality and competitive value.we've a professional 135 optical brightener for plastics factory in Vietnam product designers.Our item is by way of the national specialist certification.

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