User talk:Andr
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[edit] Welcome to my talk page
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[edit] LAH yields
Hi Andr,
I'm contacting you about the % yields you posted on Lithium aluminium hydride. You listed them as w/w yields. Normally yields are done based on moles of a limiting reagent, are these yields different? If they are different, can you recalculate them as normal % yields? By the way, we really appreciate the work you did improving that page, thanks, Walkerma 03:37, 4 January 2006 (UTC)
- Hi Walkerma
- I'm glad that you like my contribution :-) Sorry about the late reply, but I have been busy elsewhere for the last few months. Actually the yield numbers come from one of books I have referred (Wiberg I think). I guess that the yield is the actual outcome of a reaction relative to the teoretical outcome assuming no unwanted reactions etc. It shouldn't make a difference if was in moles in stead of w/w, I think? Andr 21:59, 16 May 2006 (UTC)
[edit] Image Tagging Image:Lialh4 sem.png
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Thanks for uploading Image:Lialh4 sem.png. I notice the image page currently doesn't specify who created the image, so the copyright status is therefore unclear. If you have not created the image yourself then you need to argue that we have the right to use the image on Wikipedia (see copyright tagging below). If you have not created the image yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page.
If the image also doesn't have a copyright tag then you must also add one. If you created/took the picture then you can use {{GFDL}} to release it under the GFDL. If you believe the image qualifies as fair use, please read fair use, and then use a tag such as {{fairusein|article name}} or one of the other tags listed at Wikipedia:Image copyright tags#Fair_use. See Wikipedia:Image copyright tags for the full list of copyright tags that you can use.
If you have uploaded other images, please check that you have specified their source and copyright tagged them, too. You can find a list of image pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "Image" from the dropdown box. Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. Thank you. cohesion★talk 22:28, 16 January 2006 (UTC)
- Hi Cohesion
- Thanks for your effort in cleaning up images without copyright, adressing copyright issues in general etc. I have edited the copyright of the image to be appropiate. Andr 22:02, 16 May 2006 (UTC)
[edit] Image copyright problem with Image:Lialh4 struct.png
Thanks for uploading Image:Lialh4 struct.png. However, the image may soon be deleted unless we can determine the copyright holder and copyright status. The Wikimedia Foundation is very careful about the images included in Wikipedia because of copyright law (see Wikipedia's Copyright policy).
The copyright holder is usually the creator, the creator's employer, or the last person who was transferred ownership rights. Copyright information on images is signified using copyright templates. The three basic license types on Wikipedia are open content, public domain, and fair use. Find the appropriate template in Wikipedia:Image copyright tags and place it on the image page like this: {{TemplateName}}.
Please signify the copyright information on any other images you have uploaded or will upload. Remember that images without this important information can be deleted by an administrator. If you have any questions, feel free to contact me. Thank you. --cohesion★talk 22:29, 16 January 2006 (UTC)
