Betekenis van:
copper sulphate

Voorbeeldzinnen

1. NO ENTRY Copper sulphate
2. Tribasic copper sulphate
3. Copper sulphate pentahydrate
4. Copper in the form of copper hydroxide, copper oxychloride, (tribasic) copper sulphate, cuprous oxide, copper octanoate
5. copper sulphate: only until 31 December 2015
6. Copper sulphate solution: dissolve 25 g of copper sulphate, Cu SO4 5H2O, free from iron, in 100 ml of water.
7. Catalyst: copper (II) oxide CuO or copper (II) sulphate pentahydrate, CuSO4 5H2O.
8. Dissolve 5,0 g copper sulphate pentahydrate in 1000 ml 20 % (v/v) acetic acid.
9. Add the copper sulphate solution (3.4.1) and make up to 1 litre with water.
10. To 5 ml of a 0,5 % solution of the sample, add 5 ml of 5 % solution of copper sulphate or of aluminium sulphate. A precipitate appears.
11. All food producing species No MRL required NOT APPLICABLE NO ENTRY NO ENTRY Copper sulphate NOT APPLICABLE
12. To 5 ml of a 0,5 % solution of the sample add 5 ml of a 5 % solution of copper or aluminium sulphate.
13. To 5 ml of a 0,5 % solution of the sample add 5 ml of a 5 % solution of copper or aluminium sulphate. A precipitate appears.
14. Copper sulphate TSC: dissolve approximate by 65 g of copper sulphate CuSO4·5H2O in a sufficient quantity of a mixture of 25 ml of hydrochloric acid and 975 ml of water to give a total volume of 1 litre. Place 10 ml of this solution in a round-bottomed flask containing 250 ml of iodine solution, add 40 ml of water, 4 ml of acetic acid and 3 g of potassium iodide.
15. Weigh 1 g of the sample to the nearest 0,001 g and transfer the sample to the flask of the digestion apparatus. Add 15 g of potassium sulphate (3.1), an appropriate quantity of catalyst (3.2) (0,3 to 0,4 g of copper (II) oxide or 0,9 to 1,2 g of copper (II) sulphate pentahydrate), 25 ml of sulphuric acid (3.4) and if required, a few granules of pumice stone (3.12) and mix.