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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: danavuia.1987 on March 07, 2019, 07:04:59 AM

Title: why the colour of metyl orange disapears in alkalinity test?
Post by: danavuia.1987 on March 07, 2019, 07:04:59 AM

When i make alkalinity test:100 ml of water, 2-3 drops of metyl orange and HCl  0.1N dropwise, until orange color appears.Then, in 1 minute the water is colorless.
Why?