Propionic Acid National Standard (Zvimiro zveGB)
Muyero wenyika wepropionic acid unotsanangura zvakajeka chitarisiko chayo: inofanira kunge iri mvura isina ruvara, inoonekera ine hwema hunopisa, uye ruvara rwayo runofanira kusangana nezvinodiwa zvemavara anoonekwa (semuenzaniso, ine APHA isingapfuure muganho wakatarwa) kuve nechokwadi chekuti chigadzirwa chinosangana nezvinodiwa zvemhando yepamusoro.
Panyaya yekuchena, mwero wenyika unorayira huwandu hushoma hwepropionic acid hwe99.0%. Chinodiwa ichi chekuchena kwakanyanya chinoita kuti propionic acid ipe mashandiro akasimba uye akavimbika mukugadzirwa kwemaindasitiri akasiyana-siyana uye mamiriro ekushandiswa. Hunyoro chinhu chakakosha chinokanganisa mhando yechigadzirwa; maererano nemwero, huwandu hwemvura hunofanirwa kudzorwa pasi pe0.5% kudzivirira hunyoro hwakawandisa kuti husakanganisa hunhu hwayo hwemakemikari uye mashandiro ayo. Asidi, sechiratidzo chikuru, inotsanangurwawo zvakajeka: acidity (inoratidzwa sechikamu chemaseru, inoverengerwa sepropionic acid) inofanira kuwira mukati mehuwandu hwakatarwa kuti ive nechokwadi chekuti kugadzikana kwemakemikari echigadzirwa uye reactivity zvinosangana nezvinodiwa. Hunyoro hwesimbi inorema hwakaganhurirwa muwero wakajairwa—lead, mercury, nedzimwe simbi dzinorema zvinongogumira pamazinga akaderera zvakanyanya, anowanzo kuyerwa muppm (zvikamu pamiriyoni), kuve nechokwadi chekuchengetedzwa kwekushandiswa muzvikafu, mishonga, uye mamwe maindasitiri ane hunyanzvi.
Mutemo wenyika unoisawo zvinodiwa chaizvo pakuwanda kwechinhu. Patembiricha yakatarwa (semuenzaniso, 20°C), kuwanda kwechinhu kunofanira kuwira mukati mehuwandu hwakatarwa, zvichiratidza kana hunhu hwechigadzirwa huchienderana nezvinodiwa. Kuwanda kwechinhu ichi ndicho chimwe chinhu chakakosha kufunga nezvacho: propionic acid inofanira kuva nehuwandu hwekufashaira hwe140°C - 142°C, zvichiita kuti kugadzikana kwekupisa kwayo uye kusagadzikana kwayo zvienderane nezvinodiwa nemaindasitiri. Hunhu hwechloride hunodzorwa zvakanyanya, uye huwandu hwechloride huchida kuti chloride ive pasi pehuwandu hwakatarwa (semuenzaniso, 0.001%) kudzivirira kukanganisa kwakashata pamhando yechigadzirwa uye kugadziriswa kwacho kunotevera. Hunhu hwesimbi hunofanirawo kuderedzwa nemiganhu yakajeka, kazhinji isingapfuure 0.0001%, kudzivirira zvinhu zvesimbi zvinokanganisa ruvara, kugadzikana, uye mashandiro epropionic acid mune mamwe mashandisirwo akasarudzika.
Nezvekunyungudika, mwero wenyika unoda kuti propionic acid iratidze kunyungudika kwakanaka mune zvinonyungudutsa (semuenzaniso, ethanol, diethyl ether), zvichibvumira kusanganiswa kwakazara pane zvimwe zviyero kuti zvisangane nezvinodiwa pakugadzirwa kwechinhu ichi mumamiriro akasiyana ekushandiswa.

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. ikambani ine hunyanzvi mukugadzira uye inopa propionic acid yepamusoro-soro muChina, yakatsaurirwa kupa kuchena kwakasimba, kuwanikwa kwakavimbika, uye mhinduro dzakagadzirirwa vatengi vemaindasitiri pasi rose. Propionic acid yedu inogadzirwa pasi pemitemo yakasimba yeGB/T 10615, ine kuchena kwemhando yepamusoro kusvika ≥99.5% uye giredhi rekutanga pa ≥99.0%, ine hunyoro hushoma, iron shoma, uye simbi inorema inodzorwa kuti isangane nezvinodiwa zvemashandisirwo akasiyana-siyana ekupedzisira.
Yakagadzirwa kuburikidza netekinoroji yepamusoro yepropylene oxidation, propionic acid yedu inovimbisa hunhu hwemakemikari hwakagadzikana, kunyungudika kwakanaka, uye mhando dzakasiyana dzemhando. Inoshanda senzira yakakosha mukugadzira organic, kugadzira mapurasitiki, maitiro e electroplating, kuchengetedza chikafu nechikafu, uye kugadzirwa kwemishonga nemakemikari ekurima. Ichitsigirwa nerabhoritari yedu yekudzora hunhu uye maitiro ekuyedza akazara, kutumira kwega kwega kunoperekedzwa neCOA yakazara, MSDS, nemamwe magwaro ekutevedzera mitemo kuti zvive nyore kupinza nekushandisa pasi rese.
Tine ruzivo rwemakore akawanda rwekutumira zvinhu kunze kwenyika kuAsia, Europe, Middle East, nedzimwe nzvimbo, tinopa nzira dzekutakura zvinhu dzinochinjika, mitengo inokwikwidzana, uye mitemo yekutumira yakavimbika inosanganisira FOB, CIF, uye DDP. Kunyangwe muchida maodha madiki ekuyedza kana zvinhu zvakawanda, timu yedu yakatsaurirwa yakagadzirira kupa rutsigiro rwehunyanzvi uye sevhisi yakagadzirirwa kuti isangane nezvinodiwa zvebhizinesi renyu zvakasiyana.