Factory Liquid Glacial Acetic Acid 99.9% in Bulk Supply
A ttha bikmi thilri kan ngei. Kan thilri pawl cu USA, UK le a dangdang ah kuat an si, Factory Liquid Glacial Acetic Acid 99.9% in Bulk Supply caah a cawtu hna lakah dirhmun ttha taktak a hmu, a ttha bikmi thilri, a sangmi ruahnak, le a ttha i a caan hmaan tein a kan petu he kan cawtu hna duhnak tlinter asiloah lonh khawhnak ding caah kan si khawh chungin kan i zuam lai. Ruahchannak a ngeimi vialte kan in don hna.
A ttha bikmi thilri kan ngei. Kan thilri pawl cu USA, UK le a dangdang caah kuat an si, kan thilri pawl zuarnak nih ttihnung a chuahpi lo i na company caah hlawknak tampi a chuahpi. Chawlettu hna caah man ngeihnak ser cu kan i zuam pengmi a si. Kan company nih lungtak tein agent kan kawl hna. Zeidah na hngak rih? Ra law kan sinah i tel ve. Atu ah siseh, zeitik hmanh ah siseh.
Liquid Glacial Acetic Acid Content
Phunglam: Phenolphthalein kha hmelchunhnak ah hmangin sodium hydroxide standard solution he neutralization titration. Formic acid dat cu tuaktannak ah lak a si.
Reagents le thlennak:
Sodium hydroxide standard solution: c(NaOH) = 1 mol/L.
Phenolphthalein langhtertu: 5 g/L ethanol cawhmi. 0.5 g phenolphthalein kha 95% (V/V) ethanol 100 ml ah cawh law 4 g/L sodium hydroxide cawhmi in a senmi rong a chuah hlan tiang thlen.
Thilri: Conical ritmi thawl (3 ml tluk); alkaline burette (50 ml capacity). Liquid Glacial Acetic Acid.
Tuah ning: 0.0001 g tiang a dikthliar in a ritmi ritnak thawl chungah sample 2.5 g hrawng rit. Bottle cu 250 ml conical flask chungah chiah law 50 ml carbon dioxide aa tel lomi ti thianghlim a um lai. Um khuh kha hun law, phenolphthalein hmelchunhnak 0.5 ml cawh law, second 5 chung a senmi rong a um hlan tiang sodium hydroxide standard solution in titrate tuah.
