how to etch glass using chemicals

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Offline utkarsh

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how to etch glass using chemicals
« on: 27/07/2008 20:07:04 »
i would like to know the process of etching glass using sodium hyroxide and hydroflouric acid, how to make solution from the above 2 chemicals what percentage of both have to be mixed, i m using 40% stronge hydroflouric acid and sodium hydroxide pellets


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Offline lightarrow

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how to etch glass using chemicals
« Reply #1 on: 28/07/2008 11:04:47 »
i would like to know the process of etching glass using sodium hyroxide and hydroflouric acid, how to make solution from the above 2 chemicals what percentage of both have to be mixed, i m using 40% stronge hydroflouric acid and sodium hydroxide pellets
Of course you don't want to use them together, is it?

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Offline RD

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how to etch glass using chemicals
« Reply #2 on: 28/07/2008 11:17:08 »
An etched glass effect is possible using stick-on film...
http://www.windowfilm.co.uk/frostbrite.aspx
(avoids handling very hazardous acids) 
« Last Edit: 28/07/2008 11:18:58 by RD »

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Offline Bored chemist

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how to etch glass using chemicals
« Reply #3 on: 28/07/2008 19:55:22 »
You really don't want to mix those 2 chemicals.

Of the two, NaOH is much less nasty to work with- it just dissolves flesh.

HF is not only capable of doing that, but it's fumes will rot your lungs and even when it's neutralised the fluoride ion is quite toxic.
Probably not something to start with as a way to learn about how to use chemicals safely.
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