Tris(hydroxymethyl)aminomethane Crystal Reagent ACS size:2.5 KG Test Specification Min Max LANTHANUM

Test Specification Min Max LANTHANUM 9950 - 10050 ppm 9950 - 10050 ppm TRACEABLE TO NIST EXPIRATION DATE

50% LITHIUM 100 ppm SODIUM (Na) 100 ppm POTASSIUM (K) 1500 ppm CESIUM 1500 ppm MAGNESIUM (Mg) 10 ppm CALCIUM (Ca) 50 ppm STRONTIUM (Sr) 50 ppm BARIUM 100 ppm ALUMINUM 50 ppm

Test Specification Min Max APPEARANCE WHITE POWDER WHITE POWDER ASSAY 99% 99%

COLORLESS BOILING RANGE 149 - 208 C 149 - 208 C RANCID OR OBJECTIONABLE ODOR NONE DETECTED NONE DETECTED

01% RUBIDIUM (Rb) 0

Tris(hydroxymethyl)aminomethane Crystal Reagent ACS size:2.5 KG Test Specification Min Max LANTHANUMTest Specification Min Max ASSAY (C[@4@]H[@11@]NO[@3@]; DRIED BASIS) 99. 8 100. 10% ABSORBANCE TO PASS TEST WATER 2% INSOLUBLE MATTER 0. 01% HEAVY METALS (as Pb) 5 ppm IRON (Fe) 5 ppm