Sodium Hydrosulfide feemɔ kɛtsɔ NaOH ni ajieɔ kɛjɛɔ mli lɛ nɔ

Gbɛ ni atsɔɔ nɔ ajieɔ NaOH kɛjɛɔ mli

Kɛji akɛ NaHS sodium hydrosulfide lɛ falɛ shɛɔ 70%, efeɔ dihydrate ŋmɔtɔi.

Kɛji akɛ eyɛ shishigbɛ lɛ, ehiɔ shi akɛ nu ni ji trihydrate.

Prosiidia:

L flask ni hiɛ tsitsii etɛ ni yɔɔ shishigbɛ ni yɔɔ kokroo lɛ mli lɛ, akɛ stirrer kɛ reflux condenser (ni akɛtsa CaCl2 tsɔne ni haa nu mli fũuɔ lɛ he) ewo mli.

Akɛ nitrogen ni egbi tsuɔ nii kɛjieɔ flask lɛ mli, ni no sɛɛ lɛ akɛwoɔ mli 200 mL (3.4 mol) ni nu bɛ mli.

Akɛ sodium dade ni he tse 12 g (0.522 mol) woɔ mli bibii bibii yɛ ŋmɔlɔ kɛ ŋmɔlɔ ni akɛwoɔ mli lɛ shishi kɛyashiɔ be mli ni etsɔɔ mli kwraa.

Akɛ gas ni akɛwoɔ nu mli lɛ woɔ nu lɛ mli, ni akɛ H2S ni egbi (ni egbi yɛ P2O5 nɔ) lɛ shwieɔ 5–10 bubbles/sec nɔ kɛha 2 h yɛ shwiemɔ shishi.

Kɛji akɛ eshɛre lɛ, akɛ ether ni nu bɛ mli ni ji 750 mL fataa he koni ekɛha NaHS sodium hydrosulfide lɛ afee ŋmɔlɔŋmɔlɔ kwraa.

Nitsumɔ:

Akɛ nɔ ni akɛfutuɔ lɛ tsuɔ nii oya (coarse frit) koni ŋmɔtɔ akabote mli.

Akɛ ether ni nu bɛ mli lɛ tsuɔ nii 3× he, ni no sɛɛ lɛ, agbiɔ yɛ vacuum desiccator (CaCl2) mli ŋmɛlɛtswai babaoo.

Yibiiwoo: 29.4 g ni ji ≥98% NaHS krɔŋŋ.

Sodium hydrosulfide ji nɔ ko ni akɛhaa nɔ ni fe afii 20 nɛ. Klikimɔ nɔ koni onine ashɛ jara nɔ.