reactant


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reactant

a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Reactant

 

a technical term for any of the substances that enter into a chemical reaction. Reactants used in laboratory work are called chemical reagents.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

reactant

[rē′ak·tənt]
(chemistry)
A substance that reacts with another one to produce a new set of substances (products).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The different shape can influence the reactant gas transport, the water management, and the performance of the fuel cell.
Meanwhile, the outdoor airflow for ventilation is 25.6 cfm (12.1 L/s), the concentration of reactant A is 60 ppb for outdoor air of ventilation at inlet, and the source intensity of reactant B is 1.23 x [10.sup.-11] lb/s (5.56 x [10.sup.-9] g/s).
One of them is the changeable reaction speed, which depends on the reactants concentration and the in-reactor temperature.
dwell time) inside the high speed, high pressure, and high shear environment, forces the reactants to interact at a nanoscale level.
The concentrations of reactants and products were analyzed by using a gas chromatograph (DsChrom6200, Donam Co., South Korea) with [N.sub.2] as a carrier gas.
The formation of SiC through intermediate products rather than by a direct reaction from the elements appears to be crucial for the microstructure development of the [Ti.sub.3]Si[C.sub.2]-SiC nanocomposites, the mixture of intermediate phases possessing a refined structure relative to that of the reactant mixture.
Measured Current Measured Current Measured Current when when reactant is when reactant is reactant is 4- Acetone at Acetophenon at Chlorobenzaldehyde constant constant at constant potential potential 0.95V potential (mA) 1.73V 1.80V (mA) (mA) 1 0.42 0.32 0.08 2 0.42 0.32 0.08 3 0.42 0.31 0.07 4 0.43 0.30 0.08 5 0.42 0.29 0.07 6 0.41 0.29 0.06 7 0.41 0.30 0.05 8 0.42 0.29 0.04 9 0.41 0.31 0.05 10 0.42 0.30 0.06 11 0.43 0.31 0.07 12 0.43 0.31 0.07 Table 2 Sr.No.
But I still remember a chemistry class where the professor had a beaker of a clear, colorless solution that he was titrating with a chemical reactant. Drip.
Professor Ian Metcalfe, the lead author of the study and Professor of Chemical Engineering at Newcastle University, said, "Chemical changes are usually performed via mixed reactions whereby multiple reactants are mixed together and heated.
The reactant solution flow rates of composite membranes in penetrative flow catalysis and tangential flow catalysis under different operating pressures (a), and the conversions of three composite membranes for the hydrogenation reduction of p-nitrophenol under different operating pressures (b).
Associations between acute phase reactant levels and disease activity score (DAS28) in patients with rheumatoid arthritis.