Marking out fluid?

[Speedy Builder5Participant @speedybuilder5]

Copper sulphate – We spray everything in the garden with Bordeaux Mixture :-
mixture of copper sulfate (CuSO₄) and slaked lime (Ca(OH)₂) used as a fungicide.
Then we eat all the fruit and veg that has been sprayed – no one dead yet. Oh and by the way, its used on grape vines – think red french wine !!!
BobH

[Howard LewisParticipant @howardlewis46836]

Copper is, like Lead, a cumulative poison. But, like most things, is OK if used with that very rare commodity, these days, Common Sense.

Concentrated Sulphuric acid has such an affinity for water that it will attack anything containing the elements thereof.

It will remove the Hydrogen and Oxygen from Cellulose to leave just the Carbon, which is why it "chars" paper. It has a similar effect on clothing; have never tried it on skin and don't intend to.

Many years ago, a murderer, John Haigh, in Crawley used it to dispose of his victims body, though.

Howard

Edited By Howard Lewis on 18/07/2017 12:07:45

[Martin ConnellyParticipant @martinconnelly55370]

Dark castings with white(ish) marking out fluid painted on.

Martin C

[MonomanParticipant @monoman]

To clarify the situation in relation to Muszzer’s post above, toxicity is defined in Europe .

If you are concerned may I suggest you firstly study The REACH Regulations EC1907/2006,. EC1272/2008 etc. which is currently(2017) being amended and updated.

The acronym REACH means the Registration, Evaluation and Authorisation of Chemicals.

Currently there are in excess of thirty thousand pages of Regulations, Amendments, Proposals etc, etc ….together with the classification s in the Annexes to the Regulation. Substances subject to Authorisation appear in Annex XIV.

The European Chemical Agency has a comprehensive website which explains the legislation in considerable detail and covers the hazards which you mention in your post of 6/07/2017 .

It includes definitions, at some length in Chapter 2 article 3.

This is a Regulation which is directly acting in Member States. Its principles have been largely accepted around the World, including the US and Canada.

Under this Regulation every chemical substance has to be evaluated, even if it is then decided that the Regulation does not apply, for example in such areas as Medicines. Without the initial evaluation it is not possible to know whether the Regulation applies or not.

If you then acquire a Safety Data Sheet (SDS) for the chemical (substance or mixture) in which you are interested you see how the data in the various sections has been arrived at.

You might find it interesting and more likely useful if you are considering the use of any chemical. In any case as we are all trying to achieve the best safety we can in our hobby we should endeavour to obtain a safety data sheet. Indeed those of us who are working for other people, paid or unpaid ,should have an SDS provided by the supplier, who is obliged by the Regulations to provide without charge.

Mono

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