Guide to Preparation Work in Inorganic Chemistry for Students of Chemistry And P
Guide to Preparation Work in Inorganic Chemistry for Students of Chemistry And P
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Spread the filter with the phosphorus on absorbent paper to dry.
Operation : Place the quantity 8 of nitric acid (sp. Gr. 1. 21 1 Commercial red phosphorus contains as impurities phosphoric acid, phosphorous acid, arsenic, tin, iron, etc.
2 60 grams in order to have sufficient purified phosphorus for Prep- aration 23.
3 Actually, less than the theoretical amount of nitric acid is used, since in the reaction some N is formed as well as NO, and nitric acid is partly regenerated (in what way?) PHO...SPHORIC ACID. 33 to 1. 24) required by equation (1) in a round-bottomed 2 liter flask, add at first 10 grams phosphorus and set the flask on a straw ring under a hood.
If no marked heating takes place spontaneously within ten minutes, warm the flask upon a water bath which has been already prepared and heated, but continue the warming only till an evolution of gas begins and colored gas is visible in the flask. Then take the flask immediately from the water bath, place it again upon the straw ring, and hang a large funnel in the neck.
What to read after Guide to Preparation Work in Inorganic Chemistry for Students of Chemistry And P?
You can find similar books in the "Read Also" column, or choose other free books by Reinhart Blochmann to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Spread the filter with the phosphorus on absorbent paper to dry.
Operation : Place the quantity 8 of nitric acid (sp. Gr. 1. 21 1 Commercial red phosphorus contains as impurities phosphoric acid, phosphorous acid, arsenic, tin, iron, etc.
2 60 grams in order to have sufficient purified phosphorus for Prep- aration 23.
3 Actually, less than the theoretical amount of nitric acid is used, since in the reaction some N is formed as well as NO, and nitric acid is partly regenerated (in what way?) PHO...SPHORIC ACID. 33 to 1. 24) required by equation (1) in a round-bottomed 2 liter flask, add at first 10 grams phosphorus and set the flask on a straw ring under a hood.
If no marked heating takes place spontaneously within ten minutes, warm the flask upon a water bath which has been already prepared and heated, but continue the warming only till an evolution of gas begins and colored gas is visible in the flask. Then take the flask immediately from the water bath, place it again upon the straw ring, and hang a large funnel in the neck.
What to read after Guide to Preparation Work in Inorganic Chemistry for Students of Chemistry And P?
You can find similar books in the "Read Also" column, or choose other free books by Reinhart Blochmann to read onlineMoreLess
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