Make your own cobalt chloride indicator papers, which can be used to test for the presence of water. Includes kit list and safety instructions.

3 июл. 2022 г. · Cobalt chloride paper is used to demonstrate transpiration and also the different rates of transpiration on both the surface of the leaves.

Продолжительность: 5:10
Опубликовано: 19 мая 2020 г.

Dry the filter paper strips on hot plate/oven taking care not to burn or char the paper. The anhydrous cobalt chloride coated strips will be blue in colour.

Cobalt Chloride Paper · Our Cobalt Chloride Test Paper can quickly and economically measure the presence of relative humidity in the atmosphere · The paper is ...

Cobalt chloride paper is used to demonstrate the process of transpiration. The dry blue coloured cobalt chloride paper turns pink in the presence of water. So ...

The quick change in the colour of cobalt chloride paper on the lower surfaces indicates higher rate of loss of water vapour from this surface than the upper one ...

Продолжительность: 4:13
Опубликовано: 4 сент. 2021 г.

The demonstration. Make the pink cobalt chloride solution up to 100 cm3 with 60 cm3 concentrated hydrochloric acid from a measuring cylinder.

This was done due to the property of cobalt chloride paper to change colour from blue to pink when it comes in contact with water.