Reaction ratio

Reaction with Fatty Acids and Esters. Alkanolamines and long-chain fatty acids react at room temperature to give neutral alkanolamine soaps, which are waxy, noncrystaUine materials with widespread commercial appHcations as emulsifiers. At elevated temperatures, 140 —160°C, A/-aIkanolamides are the main products, at a 1 1 reaction ratio (7,8). 

Apply Eq. (9.77) to solve for the reaction ratio in isentropic flow ... 

For backward-curved blade 2 < 90° from Fig. 9.34, it is seen that C2 / 2 1- The reaction ratio must be less than 1. In straight-curved blade... 

The reaction ratio of a straight-blade impeller is poor when compared with a backward-curved impeller. The radial (paddle) fan has the advantage that when the air contains much dust, the straight blades remain cleaner than curved blades. 

The reaction ratio is improved, as shown in the following expression ... 

Reacting the amidinate salt, K[4-MePh-form], with the dinuclear gold(I) complex, [Au2(2,6-Me2Ph-form)2], in a 1 1 stoichiometry in THF forms the dinuclear-tetra-nuclear complex [Au2(2,6-Me2Ph-form)2][Au4(4-MePh-form)4]-2THF, Figure 1.24, with one tetranuclear and one dinuclear molecule in the same unit cell. Adjusting the reaction ratio to 2 1 formed the tetranuclear complex [Au4(4-MePh-form)4j. 

Add a 3-fold molar excess of biotinylation reagent over the molar quantity of dendrimer present. For the use of sulfo-NHS-LC-biotin (MW 556), this represents the addition of 2.1pmol or 1.16mg. This reaction ratio will result in a modification level of about 2.5 biotin groups per dendrimer. Other molar ratios also may be used, depending on the desired level of modification and the intended use for the conjugate. 

The methods are mathematically analogous to KAM and KSM. If the volume of the standard solution is Vo, the volume of the sample added is 1 (1 > V ), the standard concentration is c, that of the sample Cx and the reaction ratio between the standard sensed and the sample added is ju, then... 

For Ninhydrin test, small amount of the sample resins was heated in a mixture of 25 mL of 0.28 M Ninhydrin/EtOH solution and 100 mL of pyridine at 100°C for 10 min. The same amount of unused Toyopearl was used for the control. The reaction ratio was estimated based on the OD570 absorption value. 

Rate-Constant Ratios for Reactions Involving Excited Epoxides from Oxygen-Atom-Perfluoroolefin Reactions Ratio Value Units T, °C Reference... 

The manufacturer of the prepolymer endeavors to supply a low-moisture, low-free isocyanate, gas-free material. Moisture may be introduced with repeated opening of the prepolymer container. Contaminants will form bubbles in the final material. Any moisture or free isocyanates will have an effect on the reaction ratios as well as change the chemistry to a degree. 

The prepolymer is formed by addition polymerization, and there are no by-products formed that have to be removed. The prepolymer chains extend by the reaction of terminal isocyanate groups (-NCO) with the diol. The mole reaction ratio of the diol to diisocyanate is normally kept in the range of one mole diol to 1.6 to 2.25 moles of the diisocyanate. A reaction ratio of one mole diol to one mole diisocyanate will produce a linear material. This type of polyurethane is normally thermoplastic. 

Note that the reaction ratio of H2 l2 HI is 1 1 2 and that must be reflected in the K expression. Regardless of how complete or incomplete the reaction may be, 2 mol HI are always formed for each mol H2 and/or I2 that react. 

The fractional conversion, XA, and the initial reaction ratio, 0B = Cbc/CA0 yields... 

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