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emeritus · 18th Oct 2018, 5:27 pm

That reminds me that I must have the remains of a bottle of Johnsons Uranium Intensifier somewhere. I did use it as a schoolboy in the 1960's to salvage some underexposed negatives. A chemist colleague subsequently assured me it would have been harmless, despite my having immersed the negatives with my fingers: Brazil nuts would have been more radioactive.

18th Oct 2018, 5:27 pm	#45
emeritus Dekatron Join Date: Jan 2012 Location: Brentwood, Essex, UK. Posts: 5,339	Re: Don't try this at home... That reminds me that I must have the remains of a bottle of Johnsons Uranium Intensifier somewhere. I did use it as a schoolboy in the 1960's to salvage some underexposed negatives. A chemist colleague subsequently assured me it would have been harmless, despite my having immersed the negatives with my fingers: Brazil nuts would have been more radioactive.