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Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Bored Chemist wrote ...
"The ingredients are inexpensive, uncontroversial, not especially hazardous or noxious" In the very real sense that thiourea is a suspect carcinogen. Having said that the evidence is poor and it's not as if anyone is planning to drink the stuff.
How have you read thiourea into my post, which specifically mentions sodium thiosulphate on two occasions?
Can the impulse to find fault really override the actual text so much?
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Proud Mary wrote ...
Bored Chemist wrote ...
"The ingredients are inexpensive, uncontroversial, not especially hazardous or noxious" In the very real sense that thiourea is a suspect carcinogen. Having said that the evidence is poor and it's not as if anyone is planning to drink the stuff.
How have you read thiourea into my post, which specifically mentions sodium thiosulphate on two occasions?
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
perhaps we should start a separate "Chemical trades" thread, for people to swap chemicals or elements they have for ones they want ,assuming they are of low/non toxicity and people agree that they know what they are doing.
Standard policy, all chemicals must be sent properly packaged in plastic screw topped sample containers and clearly labelled exactly what they are, MSDS datasheets included where applicable and postal regulations adhered to.
comments? -A
(fwiw i have some surplus ammonium persulphate "fine etch" powder and sodium metasilicate developer here which is currently sitting unused in a drawer, as well as various elements such as indium, bismuth, tin, aluminium, tungsten etc)
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Possible safer way to make ZnS:Cu phosphor?
