I-Benzoic Acid: I-Organic Acid Ebalulekileyo Nesigcini
IiNdawo eziPhambili zeSicelo
Eyona ndlela iphambili yokusebenzisa i-benzoic acid ibandakanya ukusetyenziswa kwayo njengesigcini, isinyibilikisi, isiciko sevumba, kunye nenxalenye ephakathi kwi-organic synthesis. Kwishishini lokutya, i-benzoic acid sisigcini esisetyenziswa rhoqo esinokuthintela ngempumelelo ukukhula kweentsholongwane kwaye sandise ubomi bokutya. Idla ngokufakwa kwiziselo, kwiisosi, kwiijam, kwiimveliso ezifakwe kwi-pickle, nakwezinye ukutya ukuqinisekisa ukhuseleko kunye nozinzo lwazo. Umzekelo, kwiziselo ezine-carbonated, i-benzoic acid ithintela ukukhula kweebhaktheriya kunye nomngundo, igcina umgangatho wesiselo.
Kwishishini lezemithi, i-benzoic acid isetyenziselwa ukuvelisa izinto eziphakathi zamayeza athile. Ibonelela ngeqela elisebenzayo le-carboxyl elinokuthatha inxaxheba kwiimpendulo ze-organic synthesis ukuvelisa ii-antibiotics, ii-antipyretic analgesics, kunye namanye amayeza. Ukongeza, i-benzoic acid ingasetyenziselwa ukulawula i-pH yeendlela zamayeza, ukuqinisekisa uzinzo lwazo kunye nokufumaneka kwazo. Umzekelo, kwezinye izithambiso ze-antibiotic ezisetyenziswayo, i-benzoic acid isebenza njengesithintelo sokuthintela ukuba i-ointment yonakale.
Kwishishini leekhemikhali, i-benzoic acid iyinto ebalulekileyo ekuhlanganisweni kwezinto eziphilayo. Ingasetyenziselwa ukuhlanganiswa kwee-esters ze-benzoic acid, ezifana ne-benzyl benzoate, ezisetyenziswa kakhulu kwimizi-mveliso yeziqholo kunye nezobuhle. I-Benzoic acid inokwenziwa i-ester ukuze kuveliswe i-ethyl benzoate, esetyenziswa ekuhlanganisweni kweepolymers kunye neeresins. Ngaphezu koko, i-benzoic acid ingasebenza njenge-acidifier kwi-organic synthesis, ilawula i-pH yenkqubo yokusabela ukukhuthaza iimpendulo ezithile.
Kwishishini lezinto zokuthambisa, i-benzoic acid isetyenziselwa ukulawula i-pH yezinto zokuthambisa, ukuqinisekisa uzinzo kunye nokhuseleko lweemveliso. Ingasebenza njengenxalenye yevumba elimnandi, inika ivumba elikhethekileyo kwizinto zokuthambisa. Umzekelo, kwezinye iziqholo kunye neemveliso zokhathalelo lolusu, i-benzoic acid isetyenziswa njengenxalenye yokugcina kunye nevumba elimnandi ukwandisa ubomi beshelufu yeemveliso kunye nokuphucula ivumba lazo.
I-Benzoic acid yikhemikhali ekhuselekileyo, kodwa kufuneka kuthathwe amanyathelo okhuseleko ngexesha lokusetyenziswa nokugcinwa kwayo. Ifanele igcinwe kwisikhongozeli esivaliweyo ukuze kuthintelwe ukufuma kunye nongcoliseko. Izixhobo ezifanelekileyo zokuzikhusela, ezifana neeglavu kunye neeglasi, kufuneka zinxitywe xa kusingathwa ukuze kuthintelwe ukudibana nolusu kunye namehlo.
Iinkcukacha
| Igama lemveliso | I-Benzoic Acid | |||||||||
| Ifomula yeKhemikhali | C₇H₆O₂ | |||||||||
| Ubunzima beMolekyuli | 122.12 | |||||||||
| Inkangeleko | Umgubo omhlophe wekristale | |||||||||
| Indawo yokunyibilika | 122.41°C | |||||||||
| Indawo yokubilisa | 249.2°C | |||||||||
| Uxinano | 1.2659 g/cm³ | |||||||||
| INOMBOLO YE-CAS | 65 - 85 - 0 | |||||||||
| Ikhowudi ye-HS | 29163100 | |||||||||
| Hayi i-EINECS | 200 - 618 - 2 | |||||||||
| Isicelo | Iikhemikhali, izithinteli zokutya, amayeza, njl. | |||||||||
Iphepha Lolawulo Lomgangatho
| Igama lemveliso | I-Benzoic Acid | ||||||
| INTO | IINKCUKACHA EZIQHELEKILEYO | IZIPHUMO ZOVAVANYO | |||||
| Umxholo | ≥99.5% | 99.86% | |||||
| Indawo yokunyibilikisa | 121-123℃ | 122℃ | |||||
| Isinyithi esinzima njengePb | ≤10ppm | ||||||
| AS | ≤2ppm | ||||||
| Umxholo we-chloride njenge-Cl | ≤0.014% | 0.01% | |||||
| Umthamo wamanzi | ≤0.5% | 0.32% | |||||
| I-asidi ye-phthalic | ≤100ppm | ||||||
| Isiphelo | Zonke izinto zingaphakathi ukuhambelana novavanyo lweBanga lokutya | ||||||
Isishwankathelo
Ngamafutshane, i-benzoic acid, njenge-organic acid ebalulekileyo kunye nesigcini, idlala indima ebalulekileyo kumashishini okutya, amayeza, iikhemikhali kunye nezobuhle. Ayigcini nje ngokuphucula uzinzo kunye nokhuseleko lweemveliso kodwa ikwaxhasa uphuhliso lweshishini lanamhlanje. Ngokuqhubela phambili kwezobuchwepheshe okuqhubekayo kunye nemfuno ekhulayo yeekhemikhali ezisebenzayo, amathuba okusetyenziswa kwe-benzoic acid aya kuba banzi nangakumbi.