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| Search found 22 matches |
| Author | Message |
|---|---|
 Topic: Titration of calcium carbonate with ferric ammonium sulfate |
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| Parvin Replies: 1 Views: 5875 |
 Forum: Off-Topic and Introductions Posted: Aug 21, 2015 14:20 Subject: Titration of calcium carbonate with ferric ammonium sulfate |
| I would like to know if anybody is aware of titration of calcium carbonate with Mohr salt.
I would appreciate of sharing it with me. Thanks. Parvin |
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| Topic: Why does Calcite fluoresce blue?? |
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| Parvin Replies: 19 Views: 37442 |
Forum: Minerals and Mineralogy Posted: May 19, 2015 13:35 Subject: Re: Why does Calcite fluoresce blue?? |
| Hi Lluís,
Could you please tell me what article you are exactly referring? Thank you. Parvin |
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| Topic: Why does Calcite fluoresce blue?? |
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| Parvin Replies: 19 Views: 37442 |
Forum: Minerals and Mineralogy Posted: May 19, 2015 13:09 Subject: Re: Why does Calcite fluoresce blue?? |
| Josele,
So, you are saying that even with those three activators, it won't be possible to get the blue color? At what wavelength we should see the blue color? Thanks. Parvin P.S. I am mixin ... |
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| Topic: Why does Calcite fluoresce blue?? |
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| Parvin Replies: 19 Views: 37442 |
Forum: Minerals and Mineralogy Posted: May 19, 2015 13:03 Subject: Re: Why does Calcite fluoresce blue?? |
| Thanks, I will do. | |
| Topic: Why does Calcite fluoresce blue?? |
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| Parvin Replies: 19 Views: 37442 |
Forum: Minerals and Mineralogy Posted: May 19, 2015 10:46 Subject: Re: Why does Calcite fluoresce blue?? |
| Hi Pete,
I have tried to use Eu+2 in order to make calcite fluoresce blue, but it didn't work out. Also, Eu is very expensive, Do you have any idea like what other activators cause calcite emits bl ... |
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| Topic: Why does Calcite fluoresce blue?? |
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| Parvin Replies: 19 Views: 37442 |
Forum: Minerals and Mineralogy Posted: Nov 10, 2014 13:01 Subject: Why does Calcite fluoresce blue?? |
| What makes calcite fluoresce blue under short wave? What trace element? What impurity? | |
| Topic: Barytocalcite synthesis : fluorescent or not? |
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| Parvin Replies: 1 Views: 6252 |
Forum: Minerals and Mineralogy Posted: Sep 19, 2014 13:39 Subject: Barytocalcite synthesis : fluorescent or not? |
| Hi,
I have tried to synthesis Barytocalcite with Barium Chloride and Calcium Chloride and Sodium Carbonate. I wonder whether I should expect to see any fluorescent activity out of the final product o ... |
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| Topic: Thermal Decomposition of Calcium Carbonate |
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| Parvin Replies: 1 Views: 6247 |
Forum: Minerals and Mineralogy Posted: Sep 17, 2014 12:01 Subject: Thermal Decomposition of Calcium Carbonate |
| Hi Friends,
I know that Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated above 840 °C. I am wondering if there is any way to reduce that decomposition temperature chem ... |
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| Topic: Manganese Carbonate |
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| Parvin Replies: 4 Views: 9632 |
Forum: Minerals and Mineralogy Posted: Sep 12, 2014 06:29 Subject: Re: Manganese Carbonate |
| Thank you all. | |
| Topic: Manganese Carbonate |
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| Parvin Replies: 4 Views: 9632 |
Forum: Minerals and Mineralogy Posted: Sep 11, 2014 13:18 Subject: Manganese Carbonate |
| Does anybody know if Manganese Carbonate is itself fluorescent or not? | |
| Topic: Fluorapatite Synthesis |
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| Parvin Replies: 8 Views: 15000 |
Forum: Minerals and Mineralogy Posted: Sep 11, 2014 12:42 Subject: Re: Fluorapatite Synthesis |
| Thanks Van, Yes, it has to be Fluorapetite... | |
| Topic: Fluorapatite Synthesis |
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| Parvin Replies: 8 Views: 15000 |
Forum: Minerals and Mineralogy Posted: Sep 10, 2014 06:54 Subject: Re: Fluorapatite Synthesis |
| To be honest, I am not sure if the what I have got is Fluoroapetite....
Do you have any idea in order to synthesis fluopapetite in a simple way.. Thanks. |
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| Topic: Fluorapatite Synthesis |
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| Parvin Replies: 8 Views: 15000 |
Forum: Minerals and Mineralogy Posted: Sep 09, 2014 13:59 Subject: Re: Fluorapatite Synthesis |
| I have no idea if the pure fluoroapetite is fluorescent or no. I have tried to make some, doesn't show any fluorescent activity. Any idea? Thank you. | |
| Topic: Fluorescent Fluorapatite |
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| Parvin Replies: 0 Views: 5887 |
Forum: Minerals and Mineralogy Posted: Sep 05, 2014 14:08 Subject: Fluorescent Fluorapatite |
| Hi.
Does anyone know how to make fluorescent FLUORAPATITE ? I am thinking to use Calcium Hydroxide+ Phosphoric Acid, and then doping with Fluoride salt. Any idea??? Does anybody knows how the ... |
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| Topic: Fluorapatite Synthesis |
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| Parvin Replies: 8 Views: 15000 |
Forum: Minerals and Mineralogy Posted: Sep 05, 2014 14:03 Subject: Re: Fluorapatite Synthesis |
| Hi.
I am not intending using any Mn to make the sample fluorescent. I am thinking to use Calcium Hydroxide+Phosphoric Acid, and then doping with Fluoride salt. Any idea??? Does anybody knows h ... |
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