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Introduction to Soil Chemistry

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218 index<br />

TMS, see Tetramethylsilane<br />

Toluene, 168<br />

Total recoverable petroleum hydrocarbons<br />

(TRPH), 164<br />

Transition horizons, 10<br />

Transition state, 38, 39<br />

Trend line, 161<br />

Triple bonds, 59, 147, 156, 164<br />

Ultisols, 19, 20<br />

Ultrasonic extraction, 136, 137<br />

Ultraviolet, 136, 147, 152, 156, 170, 184, 185,<br />

187<br />

Ultraviolet and visible spectroscopy, 156<br />

Ultraviolet light, 147, 185, 187<br />

United Nations Educational, Scientific and<br />

Cultural Organization, 17<br />

United States Environmental Protection<br />

Agency, 112<br />

Ureases, 56<br />

Urine, 46<br />

USSR, 18<br />

UV absorbance, 187<br />

UV-Vis, 156, 158, 175<br />

Valve, 183, 184<br />

Van der Waals, 32, 34, 42<br />

Vertisols, 18, 30<br />

Viscosity, 129, 154<br />

Visible region, 156, 158, 170<br />

Visualization reagent, 187<br />

Void space, 14, 89<br />

Void volume, 71, 72<br />

Voltage, 93, 105, 108, 169, 181, 188<br />

Voltammetry, 105<br />

Voltmeter, 93, 95<br />

Water removal, 141<br />

Waters of hydration, 30, 65, 83, 198<br />

Wheats<strong>to</strong>ne bridge, 181<br />

Worms, 45–47, 52<br />

X-ray diffraction, 31, 148–150<br />

X-ray fluorescence, 150–152, 170<br />

x-rays, 147, 148, 150, 152, 170<br />

Zimbabwe, 100<br />

Zinc, 28, 57, 79, 93, 95, 96, 106, 199<br />

Zinc sulfate, 95

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