You can look those items up on Google. They should be listed on the websites of optical and scientific supply companies in the U$A, UK, Europe, and Japan; for...
Hi, If you have access to a spectrophotometer, you can place your sunglasses in the beam and scan the wavelengths to see which wavelengths are absorbed. The...
John W, Thanks for the informations. I understand your comment on the behaviour of some Nigerians. My ordering of the materials will be from a friend in US...
There is a room of 98 m3. with windows and three electric fans in the room. we have 30 persons and when we close the windows everyone feel hot .. so we want to...
the acetylene can explode without the presence of oxygen (why). is that related to its hihg posisitve heat od formation??? please expplain and wy does that...
Hi I wanted to remove impurties from ethanolamine specially water. My ethanolamine is liquid, is it because of water? Thanks Sona [Non-text portions of...
ethanolamine is a liquid in most storage situations since the melting point is about 50 F (if you store it outside it will solidify if it gets cold enough) ...
See, for example: http://en.wikipedia.org/wiki/Polyacetylene http://www.answers.com/topic/acetylene http://www.newworldencyclopedia.org/entry/Acetylene ...
THANKS ________________________________ From: John W <JohnWW@...> To: thechemistrycluster@yahoogroups.com Sent: Tuesday, September 8, 2009 10:44:08 PM ...
In the first instance, if so much water is present that it separates out on the bottom, the water can be removed simply by means of putting it (or the residue...
CaO also can be used.........Remember that the humidity of thae air let water appears also in the kerosene.... ________________________________ From: John W...
the also hahave nhibitors. if the jet fuel has water in it it will solidifies when traveling at high altite that is why they ad to it speciall inhiobitors...
We are using starch in our product,But it is obsorbing moisture from air while keeping final product for so many days. Any chemicals can help to avoid this ? i...
as per IP volume -1,by increse temp of buffer sol there will decrese in ph but ph=temp, so how can it posible theoritically? pls reaply me on my email...
Sometimes Sulfuric acid (not advisable) is also used for low boilers. But safety measures has to be strictly followed. ________________________________ From:...
Dear Friends: hihi.007 sent a message to this group at 10:25 am. This post contained no message other than a url. This is a highly poisonous url that will...
Dear Ocho; You will like this. It is simple. Step-1. When Ba(OH)2 completely ionizes, two hydroxide ions, OH-, go into solution for every Ba(OH)2. So, if the...
How do you balance these equations? I am confused. My professor taught us in away that I had no idea as to how he did it! I swear it sounded like he was...
given the oxidation reduction equation Al + KOH + H2O --> KAl(OH)4 + H2 and the acid base reaction KAl(OH)4 + H2SO4 + H2O --> KAl(SO4)2-12H2O what are the...
in the instrumental analysis , we have a section that relates to the "Sample Containers" or "Sample Holders". Now, I want to know the advantages and...
Cylindrical cells to hold samples can be made any desired length that can be accommodated by the particular model of spectrophotometer, with light traveling...
BCBGC-10 Call for papers The 2010 International Conference on Bioinformatics, Computational Biology, Genomics and Chemoinformatics (BCBGC-10) (website:...
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