Tris for analysis, ACS

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Tris for analysis, ACS
Content: 1000 GRM
Physical Description:
Solid
Specification: Assay (titr., calc. on dried subst.)@99.8 - 100.1 %§Residue on ignition@max. 0.01 %§Identity (IR)@passes test§pH (0.05 M; H2O)@10.2 - 10.6§Heavy metals (as Pb)@max. 0.0005 %§Melting range@169 - 171°C§Insoluble matter in H2O@max. 0.005 %§Water (K.F.)@max. 0.5 %§Chloride@max. 0.0005 %§Fe@max. 0.0005 %§As@max. 0.00005 %§Ca@max. 0.001 %§K@max. 0.001 %§Mg@max. 0.001 %§Na@max. 0.001 %§Cd@max. 0.0001 %§Co@max. 0.0001 %§Cr@max. 0.0001 %§Cu@max. 0.0002 %§Pb@max. 0.0002 %§Zn@max. 0.0002 %§Ni@max. 0.0005 %§A (1 cm/40 % in H2O)@§290 nm@max. 0.2