Comments on: The Science Behind Natural Crystal Deodorants http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/ Natural Cosmetic & Personal Care News & Articles Wed, 25 Jan 2012 15:06:55 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: ibby http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/comment-page-1/#comment-2102 ibby Sat, 10 Sep 2011 08:35:25 +0000 http://www.naturalcosmeticnews.com/?p=1025#comment-2102 Dear Friend, I am having a problem when doing my experiment with potassium alum sulfate which is KAl(SO4)2·12(H2O) This is my experience : - I don't dissolve the alum into water but directly steam it until all melted. - I let the melted alum cooled it self and become re-solid again. - After sometimes when hot alum reach the room temperature: - at the top surface of solidified alum, some white residue like "snow" begin to form. - after several hours the alum will be surrounded with that 'snow' - after 2-3 days the solid alum destroyed and completely become powders - Why is this happen? some friends says: maybe the alum not pure, so have to add h2so4. If really have to add h2so4: - is it "98% h2so4 (concentrated)" or "h2so4 into water solution (what is the best percentage)" ? - how many % of h2so4 do i have to add into the melted alum? - is it before or after melting the alum should i add the h2so4? - is the crystal formed can cause irritation to the skin? (because of we add h2so4 into the solution before) this still confusing me, so please someone answer my questions. Thank you a lot. Dear Friend,
I am having a problem when doing my experiment with potassium alum sulfate which is KAl(SO4)2·12(H2O)
This is my experience :
- I don’t dissolve the alum into water but directly steam it until all melted.
- I let the melted alum cooled it self and become re-solid again.
- After sometimes when hot alum reach the room temperature:
– at the top surface of solidified alum, some white residue like “snow” begin to form.
– after several hours the alum will be surrounded with that ‘snow’
– after 2-3 days the solid alum destroyed and completely become powders
- Why is this happen?

some friends says: maybe the alum not pure, so have to add h2so4.

If really have to add h2so4:
- is it “98% h2so4 (concentrated)” or “h2so4 into water solution (what is the best percentage)” ?
- how many % of h2so4 do i have to add into the melted alum?
- is it before or after melting the alum should i add the h2so4?
- is the crystal formed can cause irritation to the skin? (because of we add h2so4 into the solution before)

this still confusing me, so please someone answer my questions.

Thank you a lot.

]]> By: Romelia Slanker http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/comment-page-1/#comment-1514 Romelia Slanker Tue, 19 Apr 2011 07:15:21 +0000 http://www.naturalcosmeticnews.com/?p=1025#comment-1514 That is a great article. I enjoyed it very much. Please keep doing the good things that you are doing now. Romelia Slanker That is a great article. I enjoyed it very much. Please keep doing the good things that you are doing now. Romelia Slanker

]]> By: GOODCHEMIST http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/comment-page-1/#comment-1285 GOODCHEMIST Mon, 28 Feb 2011 09:23:11 +0000 http://www.naturalcosmeticnews.com/?p=1025#comment-1285 Alum, while is a good performer wrt sweat control and antiperspirant, it leaves an uneasy feel under the arms. If the arms are dry, you will feel its presence very easily...this is the only disadvantage. Alum, while is a good performer wrt sweat control and antiperspirant, it leaves an uneasy feel under the arms. If the arms are dry, you will feel its presence very easily…this is the only disadvantage.

]]> By: Craig Payne http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/comment-page-1/#comment-58 Craig Payne Mon, 05 Apr 2010 18:47:37 +0000 http://www.naturalcosmeticnews.com/?p=1025#comment-58 Actually, alum is not short for aluminum. Alum is a specific chemical compound, and it is a class of chemical compounds. The empirical formula of aluminum is Al, whereas the general formula for alum is AB(SO4)2•12H2O (the AB are variables for either a monovalent cation or a trivalent metal ion). Various types of alum exist, and one of them is potassium alum that has the following chemical formula: AlK(SO4)2•12H2O. Actually, alum is not short for aluminum. Alum is a specific chemical compound, and it is a class of chemical compounds. The empirical formula of aluminum is Al, whereas the general formula for alum is AB(SO4)2•12H2O (the AB are variables for either a monovalent cation or a trivalent metal ion). Various types of alum exist, and one of them is potassium alum that has the following chemical formula: AlK(SO4)2•12H2O.

]]> By: John http://www.naturalcosmeticnews.com/focus/the-science-behind-natural-crystal-deodorants/comment-page-1/#comment-57 John Mon, 05 Apr 2010 16:40:33 +0000 http://www.naturalcosmeticnews.com/?p=1025#comment-57 FYI ALUM means aluminum I noticed that this tidbit of info was left out of the article. FYI ALUM means aluminum I noticed that this tidbit of info was left out of the article.

]]>