Adwumayɛbea Nsu Glacial Acetic Acid 99.9% wɔ Bulk Supply mu
Yɛwɔ nnwinnade a ɛyɛ ne bere mu de. Yɛn nneɛma no kɔ amannɔne ma USA, UK ne nea ɛkeka ho, anigye gyinabea a ɛyɛ nwonwa wɔ afɛfo mu ma Factory Liquid Glacial Acetic Acid 99.9% wɔ Bulk Supply, Yɛrekɔyɛ yɛn kɛse biara sɛ yebedi anaasɛ yɛbɛboro adetɔfo no nkyerɛkyerɛmu so denam ano aduru a ɛkorɔn, adwene a ɛkɔ anim, ne ɔdemafo a ɔyɛ adwuma yiye na ɛyɛ ne bere mu de. Yɛma anidasoɔ nyinaa akwaaba.
Yɛwɔ nnwinnade a ɛyɛ ne bere mu de. Yɛn nneɛma no kɔ amannɔne ma USA, UK ne nea ɛkeka ho, anigye gyinabea a ɛyɛ nwonwa wɔ atɔfo no mu ma , Yɛn ano aduru a yɛtɔn no mfa asiane biara mma na ɛde mfaso kɛse ba wo adwumakuw no mu mmom. Ɛyɛ yɛn akyigyina bere nyinaa sɛ yɛbɛma mfaso aba ama afɛfo. Yɛn adwumakuw no rehwehwɛ ananmusifo fi komam. Dɛn na woretwɛn? Bra bɛka yɛn ho. Seesei anaasɛ dabi.
Nsuo a Ɛwɔ Nsuo mu Acetic Acid a Ɛwɔ Mu
Nnyinasosɛm: Neutralization titration ne sodium hydroxide standard solution a wɔde phenolphthalein di dwuma sɛ sɛnkyerɛnne. Wɔtwe formic acid a ɛwɔ mu no fi akontaabu no mu.
Nneɛma a Wɔde Yɛ Nneɛma ne Ano Aduru:
Sodium hydroxide gyinapɛn ano aduru: c (NaOH) = 1 mol / L.
Phenolphthalein kyerɛwtohɔ: 5 g/L ethanol aduru. Fa phenolphthalein 0.5 g gu 100 ml a ɛyɛ 95% (V/V) ethanol mu na fa 4 g/L sodium hydroxide solution yɛ nea ɛnyɛ hwee kosi sɛ kɔla a ɛyɛ pink a ɛyɛ mmerɛw bɛda adi.
Afiri: Conical weighing toa (3 ml tumi); alkaline burette (50 ml tumi).Nsuo Glacial Acetic Acid.
Ɔkwan a wɔfa so yɛ: Kari bɛyɛ 2.5 g nhwɛsode wɔ conical weighing toa mu, pɛpɛɛpɛ kodu 0.0001 g. Fa toa no gu conical flask a ne kɛse yɛ 250 ml a nsu a wɔde ayɛ a carbon dioxide nnim 50 ml wom mu. Bue toa no ano, fa phenolphthalein indicator 0.5 ml ka ho, na fa sodium hydroxide standard solution titrate kosi sɛ kɔla a ɛyɛ pink a ɛyɛ mmerɛw bɛtra hɔ sikani 5.
