FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   PreferencesPreferences   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Forum index » Medicine forums » nutrition
help with calculating elemental magnesium?
Post new topic   Reply to topic Page 1 of 1 [4 Posts] View previous topic :: View next topic
Author Message
Actor123
medicine forum beginner


Joined: 29 Jun 2005
Posts: 9

PostPosted: Tue Jul 18, 2006 2:42 pm    Post subject: help with calculating elemental magnesium? Reply with quote

Hi there. I recently received an IV of 1 gram of magnesium sulfate and
am trying to determine how much elemental magnesium that gives me.
Numeruous internet sources say that 1 gram of MgSO4 delivers roughly
100mg of elemental magnesium (roughly 10%). The side of my bad of
epsom salt that I use for baths also says the same. But when I try and
do the calculation myself, by adding up the atomic weights of each of
the elements in MgSO4 and dividing the atomic weight of magnesium into
that number, I get roughly 20%, not 10%. What am I doing wrong?
Back to top
Mike Robinson
medicine forum beginner


Joined: 18 Jul 2006
Posts: 2

PostPosted: Tue Jul 18, 2006 3:50 pm    Post subject: Re: help with calculating elemental magnesium? Reply with quote

On Tue, 18 Jul 2006 07:42:32 -0700, Actor123 wrote:

Quote:
Hi there. I recently received an IV of 1 gram of magnesium sulfate and
am trying to determine how much elemental magnesium that gives me.
Numeruous internet sources say that 1 gram of MgSO4 delivers roughly
100mg of elemental magnesium (roughly 10%). The side of my bad of
epsom salt that I use for baths also says the same. But when I try and
do the calculation myself, by adding up the atomic weights of each of
the elements in MgSO4 and dividing the atomic weight of magnesium into
that number, I get roughly 20%, not 10%. What am I doing wrong?

You are confusing anhydrous magnesium sulfate(MgSO4) with magnesium
sulfate heptahydrate (MgSO4.7H2O). Generally "magnesium sulfate" refers
to the heptahydrate when not specified.
Back to top
Actor123
medicine forum beginner


Joined: 29 Jun 2005
Posts: 9

PostPosted: Wed Jul 19, 2006 2:48 pm    Post subject: Re: help with calculating elemental magnesium? Reply with quote

Mike Robinson wrote:
Quote:
On Tue, 18 Jul 2006 07:42:32 -0700, Actor123 wrote:

Hi there. I recently received an IV of 1 gram of magnesium sulfate and
am trying to determine how much elemental magnesium that gives me.
Numeruous internet sources say that 1 gram of MgSO4 delivers roughly
100mg of elemental magnesium (roughly 10%). The side of my bad of
epsom salt that I use for baths also says the same. But when I try and
do the calculation myself, by adding up the atomic weights of each of
the elements in MgSO4 and dividing the atomic weight of magnesium into
that number, I get roughly 20%, not 10%. What am I doing wrong?

You are confusing anhydrous magnesium sulfate(MgSO4) with magnesium
sulfate heptahydrate (MgSO4.7H2O). Generally "magnesium sulfate" refers
to the heptahydrate when not specified.

Ah, I see. Man, I would have never figured it out. Thanks so much.
Does this apply to Magnesium Chloride as well? I have the option of
switching and might try both but I want to try and get the same amount
of elemental.
Back to top
Mike Robinson
medicine forum beginner


Joined: 18 Jul 2006
Posts: 2

PostPosted: Wed Jul 19, 2006 3:21 pm    Post subject: Re: help with calculating elemental magnesium? Reply with quote

On Wed, 19 Jul 2006 07:48:47 -0700, Actor123 wrote:

Quote:
Ah, I see. Man, I would have never figured it out. Thanks so much.
Does this apply to Magnesium Chloride as well? I have the option of
switching and might try both but I want to try and get the same amount
of elemental.

Magnesium chloride is available as anhydrous MgCl2 (26% elemental Mg) and
as the hexahydrate MgCl2.6H2O (12% elemental Mg). Again, the hydrate is
more common.
Back to top
Google

Back to top
Display posts from previous:   
Post new topic   Reply to topic Page 1 of 1 [4 Posts] View previous topic :: View next topic
The time now is Tue Nov 20, 2018 5:35 am | All times are GMT
Forum index » Medicine forums » nutrition
Jump to:  

Similar Topics
Topic Author Forum Replies Last Post
No new posts Steps in performing serum magnesium measurements Actor123 laboratory 11 Wed Jul 05, 2006 12:29 am
No new posts More magnesium, less copper could benefit health \"Jan Drew\" cancer 0 Tue May 30, 2006 9:11 pm
No new posts Magnesium fights range of serious ills Roman Bystrianyk nutrition 19 Mon May 01, 2006 12:35 pm
No new posts Magnesium citrate Marshall Price nutrition 3 Sat Apr 29, 2006 11:10 pm
No new posts MAGNESIUM?? shyitaliangirl@aol.com nutrition 15 Thu Mar 16, 2006 7:29 pm

Copyright © 2004-2005 DeniX Solutions SRL
Other DeniX Solutions sites: email marketing campaigns , electronics forum, Science forum, Unix/Linux blog, Unix/Linux documentation, Unix/Linux forums


Powered by phpBB © 2001, 2005 phpBB Group
[ Time: 0.0122s ][ Queries: 16 (0.0008s) ][ GZIP on - Debug on ]