Science and Technology Chemistry| Global Calcium Manufactures of calcium compounds which includes range of mineral gluconates, catering to nutraceutical, food and beverage sectors and more. http://www.globalcalcium.com | |
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| pH meter and pH measurements All you want to know about pH meters, pH measurements and pH electrodes. History, theory and practice, links to models and manufacturers. http://www.ph-meter.info | |
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| Chemical calculators Easy to use programs for pH calculation, concentration conversion, solution preparation, equation balancing and stoichiometry with built in dissociation constants and density tables databases. Free extensive lectures on pH calculation and concentrations. http://www.chembuddy.com | |
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