Panagpawala na Sodium Hydrosulfide panamegley na NaOH Absorption
Kombensyonal a Paraan na Pan-absorb na NaOH
No say NaHS sodium hydrosulfide concentration et onsabi 70%, manporma itan na dihydrate flakes.
No abeba so konsentrasyon to, wala itan bilang likidon trihydrate.
Paraan:
Say 1 L ya taloran beklew ya malimpek ya flask et walay stirrer tan reflux condenser (ya akakonekta ed CaCl₂ drying tube).
Say flask et purgaen na amagan nitroheno, insan kargaan na 200 mL (3.4 mol) anhydrous ethanol.
12 g (0.522 mol) na malinis ya sodium metal so iyarum ed melag iran piraso ya igalaw tan i-reflux anggad sigpot ya natunaw.
Say gas inlet tube et isuksok ed likido, tan say amagan H2S (ya pinamaga ed P2O5) et ibubble ed 5-10 bubbles/sec ed loob na 2 oras ya igagalaw.
Kayari na panlemew, 750 mL ya anhydrous ether so iyarum pian sigpot ya onlereg so NaHS sodium hydrosulfide.
Workup:
Say laok et maples ya nasala (magaspang ya frit) pian ag-onsepsep na danum.
Say solido et urasan na 3× na anhydrous ether, insan pamaraan ed vacuum desiccator (CaCl₂) ed loob na pigaran oras.
Ani: 29.4 g na ≥98% puron NaHS.