Ngokulandela umgaqo wakho othi "umgangatho, uncedo, ukusebenza kunye nokukhula", ngoku sifumene iintembeko kunye neendumiso kubathengi basekhaya nakwamanye amazwe ngeFactory Supply Industrial Grade Glacial Acetic, Umgangatho ophezulu kunye namaxabiso akhuphisanayo enza iimveliso zethu zivuyiswe kukuma okugqwesileyo kuyo yonke indawo.
Ngokulandela umgaqo wakho "womgangatho, uncedo, ukusebenza kunye nokukhula", ngoku sifumene iintembeko kunye neendumiso kubathengi basekhaya nakwamanye amazwe ngenxa yokuba, njengezisombululo eziphambili kumzi-mveliso wethu, uthotho lwethu lwezisombululo luye lwavavanywa kwaye lwasifumana iziqinisekiso zegunya elinamava. Ukuze ufumane iinkcukacha ezongezelelweyo kunye noluhlu lwezinto, qiniseka ukuba ucofa iqhosha ukuze ufumane ulwazi olongezelelweyo.














5. Uvavanyo:
1. I-Formic Acid:
a. Inkqubo: Bulala malunga ne-5 g yesampulu (usebenzisa ibhalansi yobuchwephesha) kwi-beaker ye-100 ml. Yongeza amathontsi ama-2 esisombululo se-phenolphthalein indicator uze unciphise ngesisombululo se-2 N NaOH de kuvele umbala obomvu. Yitshise emanzini ukuya kwisiqingatha somthamo wokuqala. Yipholise, yenza i-acid nge-5 ml ye-HCl exineneyo, kwaye uyifake ngobuninzi kwi-250 ml ye-iodine flask equlethe i-50 ml yamanzi kunye ne-50 ml yesisombululo se-0.1 N NaBrO. Yivale kakuhle, xuba kakuhle, kwaye uyivumele ime imizuzu engama-30. Yongeza i-15 ml yesisombululo se-16.5% KI, i-20 ml ye-6 N HCl, kunye ne-2 ml yesisombululo se-starch indicator. Yithambise ngesisombululo se-0.1 N Na₂S₂O₃ de umbala oluhlaza okwesibhakabhaka uphele (isiphelo). Yenza uvavanyo olungenanto ngaxeshanye.
b. Ukubala: (I-ml engenanto – Isampulu ye-ml) × 0.1 (Ubungakanani obuqhelekileyo) × 0.02301 = iigrama ze-HCOOH
c. I-Grade Glacial Acetic Qaphela: Ukufudumeza emanzini okuhlambela emva kokongeza i-NaOH kujoliswe ekutshiseni nasekususeni i-acetaldehyde, enokubangela iziphumo eziphezulu. I-Grade Glacial Acetic.
2. I-Acetaldehyde:
a. Inkqubo: Bulala malunga ne-10 g ye-glacial acetic acid (usebenzisa ibhalansi yobuchwephesha) kwiflaski ye-iodine engama-250 ml. Yongeza i-50 ml yamanzi, uze ufake i-10 ml yesisombululo se-NaHSO₃ esingu-4% kwiflaski. Yivale ngokuqinileyo, uyishukumise, kwaye uyivumele ime imizuzu engama-30. Yongeza i-2 ml yesisombululo se-starch indicator kwaye uyitshise ngesisombululo se-Iodine esingu-0.1 N de kuvele umbala oluhlaza okwesibhakabhaka (isiphelo). Yenza uvavanyo olungenanto ngaxeshanye.
b. Ukubala: (I-ml engenanto – Isampulu ye-ml) × 0.1 (Ubungakanani) × 0.02203 = iigram ze-CH₃CHO
6. Ukulungiswa kweReagent:
Isisombululo se-0.1 N Sodium Hypobromite (NaBrO): Yongeza i-2.8 ml ye-bromine kwi-500 ml yamanzi. Yongeza i-100 ml ye-2 N NaOH uze uxube ide inyibilike. Xuba ngamanzi ukuya kwi-1000 ml ukuze ufumane isisombululo se-0.1 N NaBrO.
6. Ukulungiswa kweReagent yeGlacial Acetic yeGrade:
Isisombululo se-0.1 N Sodium Hypobromite (NaBrO): Yongeza i-2.8 ml ye-bromine kwi-500 ml yamanzi. Yongeza i-100 ml ye-2 N NaOH uze uxube ide inyibilike. Xuba ngamanzi ukuya kwi-1000 ml ukuze ufumane isisombululo se-0.1 N NaBrO.