I-2,5-Thiophenedicarboxylic Acid
Ifomula yolwakhiwo
Igama leKhemikhali: 2,5-Thiophenedicarboxylic Acid
Amanye amagama: OB acid;ob acid;ob acid;5-thiophene dicarboxylic acid;I-2,5-thiophene diacid;2,5-dicarboxythiophene;I-2,5-thiophene dicarboxylic acid;i-thiophene-2,5-dicarboxylic acid;I-2,5-thiophene dicarboxylic acid;I-2,5-thiophene dicarboxylic acid;I-2,5-thiophene dicarboxylic acid
Ifomula yemolekyuli: C6H4O4S
ubunzima bemolekyuli: 172.16
Inkqubo yamanani
CAS: 4282-31-9
I-EINECS: 224-284-2
HS IKHOWUDI: 2934999090
Idatha yePhysical
Imbonakalo: mhlophe ukuya kokukhanya komgubo wekristale otyheli
Ubunyulu: ≥98.0%
Ubuninzi: 1.655 g / cm3
Indawo yokunyibilika: >300 °C(lit.)
Indawo yokubila: 444.6ºCat 760 mmHg
Indawo yokudanyaza: 222.7ºC
Ukunyibilika: Inyibilika kancinane emanzini
Indlela yokuvelisa
I-Adipic acid kunye ne-thionyl chloride yaxutywa kumlinganiselo wobunzima be-1: (6-10) kwaye i-refluxed i-20-60 h phambi kwe-pyridine catalyst.I-solvent yachithwa kwaye i-residu yatshiswa kwi-140-160 ℃ ye-3-7 H. I-Thiophene-2,5-dicarboxylic acid yafunyanwa ngonyango lwe-sodium hydroxide, i-precipitation ye-asidi, i-filtration, i-decolorization kunye nokucoca.
Isicelo
I-agent emhlophe ye-fluorescent EBF yalungiswa ngokuxinaniswa kwemveliso nge-o-aminophenol.Esi sikhanyiso singasetyenziselwa inayiloni, i-polyester, i-polypropylene, i-chloro kunye ne-triacetic acid fibers.Yimveliso eneempawu ezibalaseleyo.Isetyenziswa ikakhulu kulungiselelo lwe-fluorescent whitening agent, esetyenziswa ikakhulu kukwenziwa mhlophe kwefayibha zokwenziwa, i-EVA, i-PVC, iplastiki kunye nerabha, kwaye ingasetyenziselwa ukwenza mhlophe ifilimu yeplastiki, izixhobo zokubumba, izixhobo zokubumba, njl njl njl.
Ugcino
Isitora esitywiniweyo kwindawo engenamoya neyomileyo kwaye uzigcine kude nokukhanya.
