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elemental makeup of saltwater

Posted: Thu Nov 15, 2007 12:15 pm
by scotta740
I need to know the elemental makeup of saltwater VERY soon!!

Posted: Thu Nov 15, 2007 12:19 pm
by ChrisG
Welcome to Science Buddies. Your best bet for a general question like that is to use a web search. Try typing "sea water composition" or similar terms into your favorite search engine. If you have more specific questions about how to do an internet search, or about your science fair project, please feel free to ask.

Good luck!

it depends

Posted: Sat Nov 17, 2007 10:51 am
by jimb740
Scott I checked "seawater" on acessscience. the second hit(seawater elements geochemical distribution) said the compound varies. however there is a link on that page you might be able to make sense out of (the link is "seawater").

Posted: Sat Nov 17, 2007 7:10 pm
by elin105
Hi Scott!

I need to know the elemental makeup of saltwater VERY soon!!

This is a very interesting topic! How are you planning on making the seawater solution? For example, if you mix distilled water with salt, you will get different results than if you use seawater that has minerals in it.

Elisa L.

Posted: Sun Nov 18, 2007 2:05 pm
by zzzzdoc
If you can't find the information online, go to you local marine fish store. Look at the ingredients in Instant Ocean, or Tropic Marin (or a number of other) salt water mixes for aquariums. You will need to take into account the dilution with water to get the actual concentration (the bags are labelled with how much water they need to be diluted with), but when done, they closely approximate sea water concentrations.

Perhaps their web sites have the same information.

Posted: Thu Nov 29, 2007 10:30 am
by scotta740
very true :)

Posted: Fri Dec 14, 2007 3:54 pm
by tbnm815
Saltwater is considered saline water, which is a general term for water that contains a significant concentration of dissolved salts (NaCl.)

Hope I helped!

Posted: Sat Dec 15, 2007 11:53 am
by tdaly
The textbook An Introduction to the World's Oceans contains an entire chapter discussing the composition of seawater. An outline of the chapter is available here: ... apter6.pdf. The text's homepage is here: ... ent_view0/.

Posted: Mon Dec 17, 2007 4:37 pm
by qianpeiw740
I'm also doing a project on seawater! The chemical makeup depends but usually has sodium chloride, potassium bromide, calcium, magnesium etc in it