Spectroscopy-ga Nukliyeerka ee Propionic Acid (NMR)
Isticmaal qalabka cabbira shucaaca magnetic-ga nukliyeerka si aad u ogaato aashitada propionic. Tusaale ahaan, adigoo isticmaalaya falanqaynta qaab-dhismeedka aashitada propionic ee alaabada isku-darka kiimikada, marka hore u diyaari muunadda xal ku habboon, badanaa adoo isticmaalaya reagents-ka deuterated sida chloroform-ka deuterated si looga fogaado faragelinta meesha ugu sarreysa ee dareeraha ah ee ku taal meesha ugu sarreysa muunadda. Dhig tuubada NMR ee ku jirta xalka muunadda baaritaanka qalabka cabbira NMR. Qalabku wuxuu soo saaraa garaaca raadiyaha si uu u kiciyo kala-guurka heerka tamarta nukliyeerka ee atamka molecules-ka muunadda. Nuclei-yada ku jira deegaanno kiimiko ah oo kala duwan ayaa si kala duwan u nuuga oo u soo saara calaamadaha heerka shucaaca, taasoo keenta meelaha ugu sarreeya ee NMR. Iyadoo la falanqeynayo deegaanka kiimikada ee atam kasta oo haydarojiin ah oo ku jira molecule-ka aashitada propionic, oo ay weheliso macluumaad sida booska ugu sarreeya (isbeddelka kiimikada) iyo kala-goynta ugu sarreysa (joogtada isku-xidhka), qaab-dhismeedka aashitada propionic waa la xaqiijin karaa. Falanqaynta tirada ee waxa ku jira ayaa sidoo kale la samayn karaa ilaa xad gaar ah. Si kastaba ha ahaatee, baaritaanka NMR guud ahaan waa mid aan sax ahayn falanqaynta tirada marka loo eego hababka kale, laakiin waxay bixisaa faa'iidooyin gaar ah oo loogu talagalay falanqaynta qaab-dhismeedka.

Shandong Pulisi Kiimikada Propionic Acid    info@pulisichem.cn
Kiimikada Shandong Pulisi waxay bixisaa aashitada propionic ee heerka sare ah CAS 79-09-4 oo leh nadiifnimo ilaa 99.5%. Xakamaynta wasakhda adag waxay hubisaa waxqabadka xasilloon ee ilaalinta cuntada, waxyaabaha lagu daro quudinta, kiimikada dhexdhexaadka ah iyo isticmaalka walxaha ceeriin ee warshadaha.
Waxaan leenahay bakhaarro deked oo madax-bannaan iyo silsilad sahay oo deggan oo kor u socota, annagoo taageerna baakado dabacsan, kayd ku filan iyo gaarsiin degdeg ah oo caalami ah. Dufcad kasta waxay la socotaa COA iyo MSDS oo dhammaystiran, iyadoo la eegayo tayada adag si loo hubiyo isku-dheellitirnaanta dufcadda oo joogto ah. Adeegga dhoofinta ee xirfadda leh ee hal-joojin ah ayaa naga dhigaya alaab-qeybiyahaaga propionic acid ee muddada-dheer ee Shiinaha.

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