Sinezixhobo ezisemgangathweni ophezulu. Iimveliso zethu zithunyelwa kwamanye amazwe e-USA, e-UK njalo njalo, zinandipha isikhundla esihle phakathi kwabathengi kwiFactory Liquid Glacial Acetic Acid 99.9% kwiBulk Supply, Siza kwenza konke okusemandleni ethu ukuhlangabezana okanye ukudlula iinkcukacha zabathengi ngezisombululo ezikumgangatho ophezulu, ingcamango ephucukileyo, kunye nomboneleli osebenzayo nofikelelo. Siyabamkela bonke abathengi abanomdla.
Sinezixhobo ezisemgangathweni ophezulu. Iimveliso zethu zithunyelwa kwamanye amazwe e-USA, e-UK njalo njalo, zinandipha isikhundla esihle phakathi kwabathengi ngenxa yokuba ukuthengisa izisombululo zethu akubangeli mingcipheko kwaye kuzisa imbuyekezo ephezulu kwinkampani yakho endaweni yoko. Sihlala sizama ukudala ixabiso kubathengi. Inkampani yethu ifuna iiarhente ngokunyaniseka. Ulinde ntoni? Yiza uze ujoyine nathi. Ngoku okanye ungaze.














Umxholo we-Liquid Glacial Acetic Acid
Umgaqo: Ukunciphisa i-neutralization titration ngesisombululo esiqhelekileyo se-sodium hydroxide kusetyenziswa i-phenolphthalein njengesalathisi. Umxholo we-formic acid uyancitshiswa ekubalweni.
IiReagents kunye nezisombululo:
Isisombululo esiqhelekileyo se-sodium hydroxide: c(NaOH) = 1 mol/L.
Isalathisi sePhenolphthalein: Isisombululo se-ethanol esingu-5 g/L. Nyibilikisa i-phenolphthalein engu-0.5 g kwi-100 ml ye-95% (V/V) ethanol uze uyinyibilikise ngesisombululo se-sodium hydroxide esingu-4 g/L ude kuvele umbala opinki ocacileyo.
Izixhobo: Ibhotile yokulinganisa i-conical (umthamo we-3 ml); i-alkaline burette (umthamo we-50 ml). I-Liquid Glacial Acetic Acid.
Inkqubo: Bulala malunga ne-2.5 g yesampuli kwibhotile enobunzima obuyi-conical, echanekileyo kwi-0.0001 g. Beka ibhotile kwiflaski enobunzima obuyi-250 ml equlethe i-50 ml yamanzi acocekileyo angenayo i-carbon dioxide. Vula isivalo sebhotile, wongeze i-0.5 ml ye-phenolphthalein indicator, kwaye utitrate ngesisombululo esiqhelekileyo se-sodium hydroxide de umbala opinki ongabonakaliyo uhlale imizuzwana emi-5.