People's Education Press High School Chemistry Compulsory Course I
Cantonese Education Edition Ninth Grade Chemistry Volume 1
Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 2
Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 1
People's Education Press Ninth Grade Chemistry Volume 1
Lu Ke Edition High School Chemistry Compulsory Course 1
Lu Jiao Edition Ninth Grade Chemistry Volume 1
Hunan Education Edition Ninth Grade Chemistry Volume 1
Cantonese Education Edition Ninth Grade Chemistry Volume 2
People's Education Press Ninth Grade Chemistry Volume 2
People's Education Press High School Chemistry Compulsory Course 2
Lu Ke Edition High School Chemistry Compulsory Course 2
Hunan Education Edition Ninth Grade Chemistry Volume 2
Lu Jiao Edition Ninth Grade Chemistry Volume 2
Category | Format | Size |
---|---|---|
People's Education Press Ninth Grade Chemistry Volume 2 | pptx | 6 MB |
Description
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware 2
Removal of insoluble impurities in coarse salt
1. Dissolve 2. Filter 3. Evaporate
Remove insoluble impurities from coarse salt
When filtering, you should pay attention to: "One post, two low, three rely"
4. Yield: refined salt/coarse salt×100%
1.dissolve
①Instruments: beaker, glass rod
②The role of the glass rod: speed up the dissolution rate of coarse salt
2.Filter
①Instruments: Iron stand with iron ring, funnel, beaker, filter paper, glass rod
②The function of glass rod: drainage
③Note: One stick, two low, three lean
2.Filter
First post: 1. The filter paper sticks to the inner wall of the funnel.
Second low: 1. The edge of the filter paper is lower than the edge of the funnel.
2. The edge of the filtrate is lower than the edge of the filter paper.
Three leanings: 1. The mouth of the beaker is close to the glass rod.
2. The glass rod is close to the three layers of filter paper.
3. The tip of the funnel is close to the inner wall of the beaker.
3. Evaporate
①Instruments: iron stand with iron ring, evaporating dish, alcohol lamp, glass rod
②The role of the glass rod: to prevent liquid droplets from splashing due to uneven heating
③Note: Stop heating when more solids appear in the evaporating dish
4. Calculate yield
① Use a glass rod to transfer the solid salt to paper and weigh it to calculate the yield.
②The role of the glass rod: transfer solids
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For more information about the PPT courseware "Removal of Insoluble Impurities in Coarse Salt of Salt Chemical Fertilizer", please click on the Removal of Insoluble Impurities in Coarse Salt of Salt Chemical Fertilizer ppt ppt tag.
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware 4:
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware 4 Steps for the removal of insoluble impurities in coarse salt: ① Dissolve, ② Filtration, ③ Evaporation ④ Calculate yield 1., Dissolve [ Weigh (left matter Right code)] Instruments: tray balance, medicine spoon, beaker, glass rod, measuring cylinder..
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware 3:
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware 3 [Thinking 1] Coarse salt contains soluble impurities (MgCl2, CaCl2, etc.) and insoluble impurities (sand, etc.). What can be used to initially purify the coarse salt? How to remove insoluble impurities and sediment...
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware:
"Removal of Insoluble Impurities in Coarse Salt" Salt Fertilizer PPT Courseware By drying seawater or boiling salt well water, salt lake water, etc., the water can be evaporated to remove sodium chloride crystal coarse salt containing more impurities. Note: 1. Pure table salt does not deliquesce in the air. 2. Coarse salt...
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Update Time: 2024-10-17
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