Fɔ fala yu prinsipul fɔ “kwaliti, ɛp, pefɔmɛns ɛn growth”, naw wi dɔn gɛt trɔst ɛn prez frɔm domestik ɛn intanashɔnal kɔstɔma fɔ Factory Supplied Industrial Grade Glacial Acetic, Tɔp kwaliti ɛn kɔmpitishɔn ret de mek wi tin dɛn gladi fɔ wan supia standin ɔlsay na di wɔd.
Adhering to yu prinsipul fɔ “kwaliti, ɛp, pefɔmɛns ɛn growth”, wi dɔn naw gɛt trɔst ɛn prez frɔm domestik ɛn intanashɔnal kɔstɔma fɔ , Bikɔs wi na di tɔp sɔlvishɔn dɛn na wi faktri, wi sɔlvishɔn siriɔs dɛn dɔn tɛst ɛn win wi ɛkspiriɛns ɔtoriti sɛtifiket dɛn. Fɔ ɔda paramita ɛn aytem list ditil, mek shɔ se yu klik di bɔtin fɔ gɛt ɔda nfɔmeshɔn.














5. Tɛst dɛn:
1. Fɔmik Asid: .
wan. Di we aw fɔ du am: Wej lɛk 5 g pan di sampul (yuz tɛknikal balans) insay 100 ml bikɔs. Ad 2 drop fεnolfthalein indikεtכr sכlushכn εn nyutralayz wit 2 N NaOH sכlushכn te wan rεd kכla apia. Ivapɔret pan wata bat to af di ɔrijinal volyum. Kul, asid wit 5 ml kɔnsɛntret HCl, ɛn transfa kwantiti insay 250 ml ayodin flask we gɛt 50 ml wata ɛn 50 ml 0.1 N NaBrO sɔlvushɔn. Stɔp am tayt, miks am fayn fayn wan, ɛn alaw am fɔ tinap fɔ 30 minit. Ad 15 ml 16.5% KI sכlushכn, 20 ml 6 N HCl, εn 2 ml stach indikεtכr sכlushכn. Taytret wit 0.1 N Na2S2O3 sכlushכn te di blu kכla disappear (εndpכynt). Du wan blank tɛst wan tɛm.
b. Kכlkyulεshכn: (Blank ml – Sεmpl ml) × 0.1 (Nכmaliti) × 0.02301 = gram HCOOH
c. Gred Glacial Acetic Notis: We yu ɔt di wata bat afta yu ad NaOH, na fɔ mek yu evapɔret ɛn pul acetaldehyde, we ɔda we go mek yu gɛt ay rizɔlt.Grade Glacial Acetic.
2. Asetaldehayd: .
wan. Di we aw fɔ du am: Wej lɛk 10 g glacial acetic acid (yuz tɛknikal balans) insay 250 ml ayodin flask. Ad 50 ml wata, dɔn pipet ɛksaktɔli 10 ml 4% NaHSO3 sɔlshɔn insay di flask. Stɔp am tayt, shek am, ɛn alaw am fɔ tinap fɔ 30 minit. Ad 2 ml stach indikεtכr sכlushכn εn tayt wit 0.1 N Ayodin sכlushכn te wan blu kכla apia (εndpכynt). Du wan blank tɛst wan tɛm.
b. Kכlkyulεshכn: (Blank ml – Sεmpl ml) × 0.1 (Nכmaliti) × 0.02203 = gram CH3CHO
6. Di Pripiamɛnt fɔ Riajɛnt:
0.1 N Sodium Hypobromite (NaBrO) Solushɔn: Ad 2.8 ml bromin to 500 ml wata. Ad 100 ml 2 N NaOH ɛn stir te i sɔlv. Dilute wit wata to 1000 ml fɔ gɛt di 0.1 N NaBrO sɔlvushɔn.
6. Gred Glacial Asɛtik Riajɛnt Prɛparashɔn:
0.1 N Sodium Hypobromite (NaBrO) Solushɔn: Ad 2.8 ml bromin to 500 ml wata. Ad 100 ml 2 N NaOH ɛn stir te i sɔlv. Dilute wit wata to 1000 ml fɔ gɛt di 0.1 N NaBrO sɔlvushɔn.