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Jiangsu
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2020-01-18 08:00
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Company Profile
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Contact：glchem(Mr.)
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Area：Jiangsu
Address：Jiangsu
Website：http://www.gl-chem-en.com/ http://glchem.shh-dingchao.com/
FLUORESCENT BRIGHTENER OB-1
C.I.393 CAS：1533-45-5
STRUCTURE:
CHEMICAL NAME:?2,2-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
MOLECULAR FORMULA: C28H18N2O2
MOLECULAR WEIGHT: 414.4 (As International relative Atom Mass 1997)
Max?UV?ABSORPTION?WAVWLENGHTH: 374?nm?(ethanol)
Max?FLUORESCENCE?EMISSION?WAVWLENGHTH:?434?nm
EXCUTIVE STANDARD:?Q/LQH010-2003
?
SPECIFICATIONS:
| Item | Indices |
Appearance |
?Green/ yellow powder |
Purity |
≥ 98.5% |
Smell |
No special smell |
Melting point |
353-359℃ |
Ash |
≤ 0.5% |
Volatile content |
≤ 0.5% |
PROPERTY:??????????
Optical?Agent OB-1 is a excellent diphenylethylene bisbenzoxazole type compound. It is unsoluble?in water and has stable capablity, also it has good?resistance to heat, sunlight,?chlorine?bleaching and?migration.?It?owns?especially high temperature tolrence,?suitable for shaping various kinds of plastics and their products under high temperature.It has an extra ideal whitening effect on polyester fibers as well as polyester fiber-containing fabrics?including polyester-cotton blend fabric It can be used to?whiten various kinds of plastics?such as?ABS, PS, HIPS, PA, PC, PP, EVA and rigid PVC. With?addition of Optical?Agent OB-1,polyamide?fiber,?nylon and polyester?have significantly good whiteness. Mixed with this product,?recycling polyester?waste material, bottle material and slice?flake will have a higher?whiteness?than before,?different,?recycling materials will have better similar color.
USEAGE:
Optical brightener OB-1should be thoroughly?dispered in the polymers. When?any ultral-violet absorption agent is added, the optimal dosage of optical brightener OB-1 will be adjusted accordingly. ???
DOSAGE:
For transparent ????0.0025-0.005% ??????????????opaque ≤ 0.01-0.03%
PACKAGE:?Packaged in iron drum or cardboard barrels. Net weight is 25 kg or 50 kg each.
STORAGE:?Should be stored in cool?and dry place.?
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