LaMotte AST Series Professional Soil Test Outfits - Manual (Page 27)

CALCIUM & MAGNESIUM
Calcium is found in rapidly growing root tips, indicating that it is a
necessary ingredient for cell division. It also tends to make cells more
selective in their absorption of nutrients.
Magnesium is an ingredient in chlorophyll which makes plants green. It
also aids in the formation of fats and oils, as well as phosphorus uptake.
The Schwarzenbach EDTA titration, used to determine calcium and
magnesium levels, involves two separate titrations. The first titration
determines the combined calcium and magnesium level, and the second
titration indicates the calcium level only. Magnesium is determined by
calculation.
QUANTITY CONTENTS CODE
30 mL *Sodium Hydroxide Solution, 15% *7886WT-G
30 mL Calcium-Magnesium Inhibitor Reagent 3922-G
30 mL *Calcium & Magnesium Buffer *5126-G
2 x 15 mL *CM Indicator Reagent *6522-E
250 mL Standard EDTA Reagent 5254-K
15 mL *Inhibitor Solution *9258-E
15 mL *TEA Reagent * 3921-E
30 mL *Sodium Hydroxide Reagent
w/Metal Inhibitors
*4259-G
100 Calcium Hardness Indicator Tablets T-5250-J
1 pH Hydrion Test papers, 4.5-7.5 2953
1 Graduated Cylinder, glass, 25 mL 0417
1 Beaker, plastic, 50 mL 0944
1 Test Tube, 5-10-15 mL, glass, w/cap 0778
1 Direct Reading Titrator, 0-1000 Range 0384
*WARNING: Reagents marked with an * are considered to be potential health
hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents go to
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone
or fax.
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