Domestic Chemistry

Prevention is better than a cure.

We roast tomatoes in a casserole dish with the lid on, that way you get more juice to pour on your plate where it belongs.

Ps

As the forum Subject Police have not yet attended this party and in the interests of balance.

What's this got to do with Model Engineering?????

it's Ideal to[pic for the tea room .

Brian

Good man Duncan !, could not have put it better myself !!

My cooking is so bad that it would make no difference anyway, so why bother.

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Given the digressions … bugger all

The actual question was to do with Chemistry and was, I believe, put in an appropriate topic.

MichaelG.

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Perhaps it is … now

[ please note my response to Dave Halford ]

MichaelG.

Tried IPA, didn't work as well as expected.

Rob

Apologies for not referring to your post directly Dave - I think you nailed it when you said it is as much to do with physics as chemistry, Perhaps even 'more' rather than 'as much'? As Michael had asked for an explanation of the chemistry I was attempting to give some background as to why a chemical explanation doesn't work by referring to the chemical basis (ester hydrolysis) for fat breakdown by the individual components of the mixture.

IPA is good for many things, but being a polar solvent isn't great for grease, as Grindstone Cowboy found. Ideally one would use dichloromethane or chloroform for pure solvent action, or a solution of sodium dichromate in

concentrated sulphuric acid for pure chemical action.

I'm not sure how one would make a paste of caustic soda in water? Sounds a bit dangerous...

Robin

Isn't that what morern paint strippers are?

Of course, the ones that actually work still have dichloromethane as a major constituent. Hadn't thought to use one as an oven cleaner though.

Given that ovens are used at >100c which will kill all microbes why clean it anyway? Unless you are using it for its proper purpose, ie baking enamel paint then I can see the need to ensure there are no sources of smuts

I've always found the most efficient method is to let the wife do it (she is usually the one that makes it dirty anyway)