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Explore concepts of equivalency with these color-coded magnetic pieces
Measure wavelengths from 400nm to 700nm
the spectrum tube power supply will stops working even the power is still on
500ml Diethyl Ether for Synthesis (Stabilized) Ethoxyethane Skull safe and reliableActive ingredients: 500ml DIETHYL ETHER For Synthesis (Stabilized). H. S. Code: 29091100. CAS No. 60 29 7. Molecular Formula (C2H5)2O. Designed for use in professional laboratories but is an ideal choice for science classrooms and Experiments. If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation.
