Sodium Hydrosulfide Prodakshɔn via NaOH Absɔpshɔn

2. 2.025-08-14

Konvɛnshɔnal NaOH Absɔpshɔn Mɛtɔd

We NaHS sכdyכm haydrosulfayd kכnsantreshכn rich 70% ., i de mek dihaydrayt flɛks.

pan lכw kכnsantreshכn, i de lεk likwid trihaydrεt.

Aw fɔ du sɔntin:

Wan 1 L tri-nɛk rawnd-bɔt flask gɛt stira ɛn riflɔks kɔndɛnsa (we dɛn kɔnɛkt to wan CaCl2 drying tyub).

Dɛn kin pul di flask wit dray naytrɔjen, dɔn dɛn kin chaj am wit 200 mL (3.4 mol) ɛtɛnol we nɔ gɛt wata.

12 g (0.522 mol) klin sכdiכm mεtal dεn ad insay sכm sכm pat dεm כnda stir εn riflaks te i fulכp fכ sכlv.

wan gas inlet tyub de insay di likwid, εn dray H2S (dray ova P2O5) de bכbul pan 5–10 bכbul/sek fכ 2 h כnda stir.

Afta i kol, dεn ad 750 mL anhaydrous εta fכ prεsipit NaHS sכdyכm haydrosulfayd kכmplit wan.

Wok-ap fɔ wok:

Dɛn kin filta di miksɔp kwik kwik wan (kɔs frit) fɔ mek di wata nɔ absɔb.

Di sɔlid de was 3× wit anhaydrous ɛtɛ, dɔn dɛn drɛy am insay vaykum dɛsikatɔ (CaCl2) fɔ sɔm awa.

Yield: 29.4 g ≥98% pure NaHS.