[Soda ash knowledge] Daily question (19) 2009.10.22
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Please hide the reply. If you do not hide it, you will not be graded in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Edited posts are not graded. (The title of this issue is taken from page 63 of "Technical Workers Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book is available for download in the soda ash information sharing area. http://bbs.hcbbs.com/thread-13140-1-2.html ) True or False Question 1. The γ value refers to the ratio of Na+ to FNH3 in MⅡ. ( ) 2. The β value is generally controlled between 1.02 and 1.12. ( ) 3. The lower the crystallization temperature, the smaller the α value that is generally required to be maintained. ( ) 4. If the γ value is too high, it will affect the purity of ammonium chloride products. ( ) 5. While the solubility of ammonium chloride decreases as the temperature decreases, the solubility of sodium chloride also decreases. ( )
1. The γ value refers to the ratio of Na+ to FNH3 in MⅡ. (∨) 2. The β value is generally controlled between 1.02 and 1.12. (∨) 3. The lower the crystallization temperature, the smaller the α value that is generally required to be maintained. (∨) 4. If the γ value is too high, it will affect the purity of ammonium chloride products. (∨) 5. While the solubility of ammonium chloride decreases as the temperature decreases, the solubility of sodium chloride also decreases. (×) 1# chen3jun
1. The γ value refers to the ratio of Na+ to FNH3 in MⅡ. (F) 2. The β value is generally controlled between 1.02 and 1.12. (T) 3. The lower the crystallization temperature, the smaller the α value that is generally required to be maintained. (T) 4. If the γ value is too high, it will affect the purity of ammonium chloride products. (T) 5. While the solubility of ammonium chloride decreases as the temperature decreases, the solubility of sodium chloride also decreases. (F)
1. False 2. True 3. True 4. True 5 False
1. False 2. True 3. True 4. True 5. False