Limestone Test

5 comments

Rate

RemnanTS Associate Join Date: Feb 2008 Location: manila Posts: 29	Limestone Test 03/26/2010 5:49 AM
	Good day, Here we go again, hehe. The topic is limestone, limestone in foundry is used as a flux in cupola melting, limestone should be a majority of CaCO3 right? If low levels of CaCO3 is present in limestone what could happen? Is there a method to test those limestone if they are really limestone? Regards, Rem
	Register to Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

These comments received enough positive votes to make them "good answers".

TVP45 Guru Join Date: Jul 2007 Posts: 4448 Good Answers: 143	#1 Re: Limestone Test 03/26/2010 8:43 AM
	You have to use more heat if you have MgCO₃in large amounts or if you have too much clay. Why not use a reputable supplier who uses X-Ray fluorescence testing? __________________ "Well, I've wrestled with reality for 35 years, Doctor, and I'm happy to state I finally won out over it." Elwood P. Dowd
	Register to Reply

Shawn Power-User Join Date: Apr 2005 Location: Averill Park, NY Posts: 250 Good Answers: 4	#2 In reply to #1 Re: Limestone Test 03/26/2010 7:29 PM
	In geology we use a weak acid to test for Limestone vs the Mg rich dolomites. Limestone quickly dissolves in a week acid while the hydrothermal altered stones have a resistance to acid and do not rapidly fizz. __________________ "There isn't a scientific community. It's a culture. It is a very undisciplined organization." ~ Francois Rabelais
	Register to Reply Good Answer (Score 2)

TVP45 Guru Join Date: Jul 2007 Posts: 4448 Good Answers: 143	#3 In reply to #2 Re: Limestone Test 03/26/2010 7:37 PM
	Yeah, that's a good test. I though of it but then figured they might want to qualify a vendor with a full-blown test and then just spot check with the less accurate (but a damn sight cheaper and easier!) fizz test. A GA to you. __________________ "Well, I've wrestled with reality for 35 years, Doctor, and I'm happy to state I finally won out over it." Elwood P. Dowd
	Register to Reply

RemnanTS Associate Join Date: Feb 2008 Location: manila Posts: 29	#5 In reply to #2 Re: Limestone Test 03/29/2010 7:02 AM
	how about nitric acid? i pulverized some limestone specimen, and all samples were dissolve in nitric acid. by the way, the colors of my samples where red, stripes of gray and white, orange, and white. Do limestone have different colors?
	Register to Reply

Milo Guru Join Date: Jul 2006 Location: "Dancing over the abyss." Posts: 4884 Good Answers: 243	#4 Re: Limestone Test 03/26/2010 7:44 PM
	Loss on ignition is the test we ran at our burnt lime plant. You could also look up ASTM C25 http://www.astm.org/Standards/C25.htm milo __________________ People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
	Register to Reply

These comments received enough positive votes to make them "good answers".

Copy to Clipboard

Milo (1); RemnanTS (1); Shawn (1); TVP45 (2)

	Got Something to Say?
	Ask a Question Start a Discussion

	Aerospace
	BioMech & BioMed
	Chemical & Material Science
	Civil Engineering
	Communications & Electronics
	Education and Engineering Careers
	Electrical Engineering
	General Discussion
	Instrumentation
	Manufacturing
	Mechanical Engineering
	New Technologies & Research
	Software & Programming
	Sustainable Engineering
	Transportation

	Site Directories
	Forum Directory Blog Directory User Group Directory RSS Feeds CR4 Rules of Conduct CR4 FAQ Site Glossary Who's Online (88 right now) Show Members