Hi all,
Firstly I’d like to say thank you to all the experienced people who help everyone on this forum with their knowledge. I’ve been a member for a while, but this is my first post. The forum has been invaluable part of my learning, and when I first started and realised how much more I needed to learn. I then spent another 18 months reading hokes and this forum, before even considering dropping and melting my first little button (chuffed to bits).
This was especially hard at the start as I live in uk and no access to nitric or sulphuric acid, however this may have helped by having to try and learn the ‘science’ behind it for alternative methods.
Introduction out of the way (sorry it’s long)
My question is about copperas. I’ve used it in the past as 1 method of precipitation.
The green crystals are made into a brownish solution, then activated with hcl, solution turns green, then it’s filtered prior addition.
However,
I’ve just purchased some more iron ii sulphate (sulfate) and it has the characteristic green crystals, but when I prepare it, the solution stays the typical green colour of the crystals, like it’s already been activated with hcl? It’s at this point ive now stopped and spent a few days researching, but I’m obviously missing something. (Hence my first post
So, basically the question is.
When preparing My copperas solution in water, it is green from the start and not the usual brown prior to activation with hcl. What am I missing??
Thanks again in advance and I’ll carry on researching and update the post if I find the answer.
(It’s going to be something silly ive missed I’m sure) pic below of my first button as well as pic of some metallic gold that precipitated, as I’m seen that mentioned a few times here.
Firstly I’d like to say thank you to all the experienced people who help everyone on this forum with their knowledge. I’ve been a member for a while, but this is my first post. The forum has been invaluable part of my learning, and when I first started and realised how much more I needed to learn. I then spent another 18 months reading hokes and this forum, before even considering dropping and melting my first little button (chuffed to bits).
This was especially hard at the start as I live in uk and no access to nitric or sulphuric acid, however this may have helped by having to try and learn the ‘science’ behind it for alternative methods.
Introduction out of the way (sorry it’s long)
My question is about copperas. I’ve used it in the past as 1 method of precipitation.
The green crystals are made into a brownish solution, then activated with hcl, solution turns green, then it’s filtered prior addition.
However,
I’ve just purchased some more iron ii sulphate (sulfate) and it has the characteristic green crystals, but when I prepare it, the solution stays the typical green colour of the crystals, like it’s already been activated with hcl? It’s at this point ive now stopped and spent a few days researching, but I’m obviously missing something. (Hence my first post
So, basically the question is.
When preparing My copperas solution in water, it is green from the start and not the usual brown prior to activation with hcl. What am I missing??
Thanks again in advance and I’ll carry on researching and update the post if I find the answer.
(It’s going to be something silly ive missed I’m sure) pic below of my first button as well as pic of some metallic gold that precipitated, as I’m seen that mentioned a few times here.