US$ 32.99
pH calibration set pairs buffers at pH 4
Four-metal 32mm density cube set with hooks in brass
sized to detect bidirectional currents stronger than the milliampere-class meters can read
proof plane
Negative Coefficient of Solubility Chemistry Demonstration Material_Silica pH calibration set pairs buffersUsed to demonstrate that some compounds become less soluble as temperature rises, 500mL of saturated calcium acetate precipitates on heating and re dissolves on cooling reverse of typical rules.
US$ 32.99
US$ 15.95
US$ 23.95