Muyezo Wadziko Lonse wa Propionic Acid (Zofotokozera za GB)
Muyezo wa dziko lonse wa propionic acid umalongosola bwino mawonekedwe ake: uyenera kukhala madzi opanda mtundu, owonekera bwino okhala ndi fungo lopweteka, ndipo mtundu wake uyenera kukwaniritsa miyezo yeniyeni yowonera ya colorimetric (monga, yokhala ndi APHA yosapitirira malire odziwika) kuti zitsimikizire kuti malondawo akukwaniritsa zofunikira pakuwoneka bwino.
Ponena za chiyero, muyezo wa dziko lonse umafuna kuti asidi wa propionic akhale ndi 99.0%. Kufunika kwa chiyero chapamwamba kumeneku kumatsimikizira kuti asidi wa propionic amapereka magwiridwe antchito okhazikika komanso odalirika pakupanga ndi kugwiritsa ntchito mafakitale osiyanasiyana. Kuchuluka kwa chinyezi ndi chinthu chofunikira kwambiri chomwe chimakhudza ubwino wa chinthu; malinga ndi muyezo, kuchuluka kwa madzi kuyenera kulamulidwa pansi pa 0.5% kuti chinyezi chochulukirapo chisasokoneze mphamvu zake zamagetsi ndi magwiridwe antchito. Kuchuluka kwa asidi, monga chizindikiro chachikulu, kumafotokozedwanso momveka bwino: acidity (yomwe imafotokozedwa ngati gawo la kulemera, yowerengedwa ngati asidi wa propionic) iyenera kukhala mkati mwa mulingo wofotokozedwa kuti zitsimikizire kukhazikika kwa mankhwala ndi reactivity ya chinthucho kukwaniritsa zofunikira. Kuchuluka kwa zitsulo zolemera kumakhala kochepa mu muyezo - lead, mercury, ndi zitsulo zina zolemera zimangolekeredwa pamlingo wotsika kwambiri, nthawi zambiri zimayesedwa mu ppm (zigawo pa miliyoni), kuti zitsimikizire kuti zigwiritsidwe ntchito bwino mu chakudya, mankhwala, ndi mafakitale ena ofunikira.
Muyezo wa dziko lonse umaperekanso zofunikira zenizeni pa kuchulukana. Pa kutentha komwe kwatchulidwa (monga 20°C), kuchulukana kuyenera kugwera mkati mwa kuchuluka komwe kwatchulidwa, kusonyeza ngati katundu weniweni wa chinthucho ukugwirizana ndi miyezo. Kuchuluka kwa kuwira ndi chinthu china chofunikira kuganizira: asidi wa propionic ayenera kukhala ndi kutentha kwa 140°C - 142°C, kuonetsetsa kuti kutentha kwake ndi kusasinthasintha kwake zikugwirizana ndi zofunikira za mafakitale. Kuchuluka kwa chloride kumayendetsedwa mosamala, ndipo muyezo umafuna kuti milingo ya chloride ikhale pansi pa malire enaake (monga, 0.001%) kuti apewe zotsatirapo zoyipa pa khalidwe la chinthucho ndi kukonza pambuyo pake. Kuchuluka kwa chitsulo kumayikidwanso malire omveka bwino, nthawi zambiri osapitirira 0.0001%, kuti tipewe zinthu zachitsulo zomwe zingakhudze mtundu, kukhazikika, ndi magwiridwe antchito a propionic acid m'magwiritsidwe ena apadera.
Ponena za kusungunuka, muyezo wa dziko lonse umafuna kuti propionic acid iwonetse kusungunuka kwabwino mu zosungunulira zinazake (monga ethanol, diethyl ether), zomwe zimathandiza kuti pakhale kusokonezeka kwathunthu pazigawo zina kuti zikwaniritse zofunikira pakupanga zinthu zosiyanasiyana.

https://www.pulisichem.com/factory-price-99-5-propionic-acid-cas-79-09-4-propionic-acid-for-food-preservatives-product/

Shandong Pulisi Chemical Co., Ltd. ndi kampani yapadera yopanga komanso yogulitsa propionic acid yapamwamba kwambiri ku China, yodzipereka kupereka ukhondo wokhazikika, kupezeka kodalirika, komanso mayankho okonzedwa bwino kwa makasitomala apadziko lonse lapansi. Propionic acid yathu imapangidwa motsatira miyezo yokhwima ya GB/T 10615, ndipo ukhondo wapamwamba kwambiri umafika ≥99.5% ndipo kalasi yoyamba ndi ≥99.0%, yokhala ndi chinyezi chochepa, chitsulo chochepa, komanso milingo yolemera yachitsulo kuti ikwaniritse zofunikira zosiyanasiyana zomwe zimagwiritsidwa ntchito kumapeto.
Popangidwa pogwiritsa ntchito ukadaulo wapamwamba wa propylene oxidation, propionic acid yathu imatsimikizira kuti mankhwala ake ndi okhazikika, amasungunuka bwino, komanso amakhala ndi khalidwe labwino nthawi zonse. Imagwira ntchito ngati gawo lofunika kwambiri pakupanga zinthu zachilengedwe, kupanga pulasitiki, njira zopangira ma electroplating, kusunga chakudya ndi chakudya, komanso kupanga mankhwala ndi agrochemical. Mothandizidwa ndi labotale yathu yowongolera khalidwe komanso njira zoyesera zonse, kutumiza kulikonse kumaphatikizidwa ndi zikalata zonse za COA, MSDS, ndi zina zotsatizana kuti zithandize kutumiza ndi kugwiritsa ntchito mosavuta padziko lonse lapansi.
Popeza takhala tikutumiza zinthu ku Asia, Europe, Middle East, ndi kwina kulikonse, timapereka njira zosinthira zoperekera zinthu, mitengo yampikisano, komanso njira zotumizira zinthu zodalirika kuphatikizapo FOB, CIF, ndi DDP. Kaya mukufuna maoda ang'onoang'ono oyesera kapena zinthu zazikulu, gulu lathu lodzipereka lili okonzeka kupereka chithandizo chaukadaulo choyankha bwino komanso ntchito yosinthidwa kuti ikwaniritse zosowa zanu zapadera za bizinesi.