Tris for analysis, ACS, ultrapure

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Tris for analysis, ACS, ultrapure
Content: 10 KGM
Physical Description:
Solid
Specification: Assay (titr.)@min. 99.9 %§pH (1 M; H2O; 20°C)@10.5 - 11.5§Insoluble matter in H2O@max. 0.005 %§Melting range@169 - 171°C§Residue on ignition@max. 0.01 %§Identity (IR)@passes test§Heavy metals (as Pb)@max. 0.0005 %§Water@max. 0.2 %§Chloride@max. 0.0005 %§Cu@max. 0.0001 %§Fe@max. 0.0001 %§Pb@max. 0.0001 %§Cd@max. 0.0001 %§Cr@max. 0.0001 %§Co@max. 0.0001 %§K@max. 0.001 %§Mg@max. 0.001 %§Ni@max. 0.0005 %§Ca@max. 0.001 %§Zn@max. 0.0002 %§As@max. 0.00005 %§Na@max. 0.001 %§A (1 cm/1 M in H2O)@§430 nm@max. 0.004§260 nm@max. 0.03§280 nm@max. 0.02§A (1 cm/40 % in H2O)@§290 nm@max. 0.2