[ERPS] Solvay ultra-pure semiconductor grade

[John Carmack]

It looks like Solvay ultra-pure semiconductor grade peroxide is completely 
unstabilized, and at least as good a spec as rocket grade peroxide.  We 
should be testing some 50% next week, and if it works out, I am going to 
buy many tons of it.  I will report pricing.

This may be useful for concentrator work, removing the need for purification.

We are making very good progress with the engines now, isolating the 
important bits and reducing the manufacturing work.  After over six months 
of development, I think we have just about got it.

John Carmack

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