Momwe mungayesere kuwonjezera zinthu zopanda chilengedwe i

Momwe mungayesere kuwonjezera zinthu zopanda chilengedwe mu zothandizira kukonza ACR:

Njira yodziwira Ca2+:

Zipangizo zoyesera ndi ma reagents: beaker; Botolo looneka ngati kononi; Funnel; burette; Furnace yamagetsi; Anhydrous ethanol; Hydrochloric acid, NH3-NH4Cl buffer solution, calcium indicator, 0.02mol/L EDTA standard solution.

Masitepe oyesera:

1. Yesani molondola kuchuluka kwa ACR processing aid sampulo (yolondola mpaka 0.0001g) ndikuyiyika mu beaker. Inyowetseni ndi anhydrous ethanol, kenako onjezerani hydrochloric acid yochulukirapo ya 1:1 ndikuyitentha pa uvuni wamagetsi kuti igwirizane kwathunthu ndi calcium ions ndi hydrochloric acid;

2. Tsukani ndi madzi ndikusefa kudzera mu funnel kuti mupeze madzi oyera;

3. Sinthani pH kuti ikhale yoposa 12 ndi yankho la NH3-NH4Cl buffer, onjezerani kuchuluka koyenera kwa calcium indicator, ndikuwonjezera ndi yankho la 0.02mol/L EDTA standard. Mapeto ake ndi pamene mtundu umasintha kuchoka pa wofiira wofiirira kupita ku buluu weniweni;

4. Chitani zoyeserera zopanda kanthu nthawi imodzi;

5. Werengani C # a2+=0.02 $(V-V0) $0.04004M $%&&

V - Kuchuluka (mL) kwa yankho la EDTA lomwe limagwiritsidwa ntchito poyesa zitsanzo zothandizira kukonza ACR.

V # - Kuchuluka kwa yankho lomwe linagwiritsidwa ntchito panthawi yoyesera yopanda kanthu

M - Yesani kulemera (g) kwa chitsanzo cha ACR processing aid.

Njira yotenthetsera poyezera zinthu zosapangidwa:

Zida zoyesera: kulinganiza bwino, ng'anjo yoziziritsa.

Masitepe Oyesera: Tengani zitsanzo zothandizira kukonza ACR za 0.5,1.0g (zolondola mpaka 0.001g), ziyikeni mu uvuni wa muffle wotentha wa madigiri 950 kwa ola limodzi, ziziziritseni, ndikuziyeza kuti muwerenge zotsalira zotsala. Ngati zinthu zopanda chilengedwe ziwonjezedwa ku zitsanzo zothandizira kukonza ACR, padzakhala zotsalira zambiri.