Reactions Between Potassium Amide And Certain Salts of Nickel And Chromium in Li
Reactions Between Potassium Amide And Certain Salts of Nickel And Chromium in Li
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In order to determine the amount of ammonia of crys- tallization thus liberated, each leg of the reaction tube pre- viously described is placed in a bath of Hquid ammonia and after connecting with the apparatus shown in Fig. 4 and opening the stopcock, the leg containing the washings is sealed off. While the leg containing the pure compound is still immersed in the ammonia bath the stopcock is connected to an air pump and ammonia is removed until the liquid phase has disappeared. At the tempera...ture of an open bath of liquid ammonia the vapor tension of the compound Ni3NioH26K4(CN)6 is almost zero. When the manometer shows that a constant low pressure has been reached the stop- cock is closed and the tube is removed to a balance and weighed. It is then connected with the air pump and evacu- ated at 70°. The loss of weight represents the amount of ammonia of crystallization.
The analysis of the deammonated residue offered some difficulties at first but these were finally overcome by the following procedure: A silver nitrate solution acidified with nitric acid was introduced into the tube containing the sample, whereby the latter was decomposed according to the equation : Ni3N2H2K4(CN)6 + 6HNO3 -I- 6AgN03 = 3Ni(N03)2 + 2NH4NO3 -|- 4KNO3 + 6AgCN 54^ George S.
What to read after Reactions Between Potassium Amide And Certain Salts of Nickel And Chromium in Li?
You can find similar books in the "Read Also" column, or choose other free books by George S George Shambaugh B 1883 Bohart to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In order to determine the amount of ammonia of crys- tallization thus liberated, each leg of the reaction tube pre- viously described is placed in a bath of Hquid ammonia and after connecting with the apparatus shown in Fig. 4 and opening the stopcock, the leg containing the washings is sealed off. While the leg containing the pure compound is still immersed in the ammonia bath the stopcock is connected to an air pump and ammonia is removed until the liquid phase has disappeared. At the tempera...ture of an open bath of liquid ammonia the vapor tension of the compound Ni3NioH26K4(CN)6 is almost zero. When the manometer shows that a constant low pressure has been reached the stop- cock is closed and the tube is removed to a balance and weighed. It is then connected with the air pump and evacu- ated at 70°. The loss of weight represents the amount of ammonia of crystallization.
The analysis of the deammonated residue offered some difficulties at first but these were finally overcome by the following procedure: A silver nitrate solution acidified with nitric acid was introduced into the tube containing the sample, whereby the latter was decomposed according to the equation : Ni3N2H2K4(CN)6 + 6HNO3 -I- 6AgN03 = 3Ni(N03)2 + 2NH4NO3 -|- 4KNO3 + 6AgCN 54^ George S.
What to read after Reactions Between Potassium Amide And Certain Salts of Nickel And Chromium in Li?
You can find similar books in the "Read Also" column, or choose other free books by George S George Shambaugh B 1883 Bohart to read onlineMoreLess
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