Цветность воды. Железо
Химический опыт с водой, доказывающий, что цветность и мутность пробам воды придаёт коллоидный раствор гидроксида железа (III)
2 months ago 00:04:44 120
2 months ago 00:04:48 45
3 months ago 00:00:03 2
3 months ago 00:00:35 152
3 months ago 00:03:51 58
3 months ago 00:03:03 50
4 months ago 00:00:36 255
4 months ago 00:00:30 451
4 months ago 00:00:44 2
4 months ago 00:00:44 1
4 months ago 00:00:30 288
4 months ago 00:00:30 788
4 months ago 00:00:11 12
4 months ago 00:03:54 5
5 months ago 00:05:43 30
5 months ago 00:00:57 1
5 months ago 00:03:30 41
5 months ago 00:06:30 101
5 months ago 00:02:42 73
5 months ago 00:00:17 3
5 months ago 00:02:21 3
5 months ago 00:04:58 158
5 months ago 00:05:38 51
5 months ago 00:04:52 18
