EFP = effective unit weight * Ka + unit weight of water Therefore for saturate soils, the EFP will be greater than 62.4 pcf. For example, soil with total unit weight of 120 pcf and phi = 30 degrees has calculated EFP for the active case equal to 120 pcf * 0.33 = 40 pcf. If this were saturated, then the EFP would equal (120-62.4)*0.33 + 62.4 =75 ... 1150 µg equivalent florfenicol/kg for muscle and 1650-1770 µg equivalent florfenicol/kg for skin. In the radiometric studies, the analytical method used is based on the conversion of all the metabolites of florfenicol to one compound, florfenicol-amine. The ratio of conversion of metabolites into florfenicol-amine was estimated to be close to 100%. Synonyms for equivalent weights in Free Thesaurus. Antonyms for equivalent weights. 47 synonyms for equivalent: equal, counterpart, correspondent, twin, peer ... equivalent [e-kwiv´ah-lent] 1. of equal value or force. 2. in chemistry, having the same valence. 3. see equivalent weight. anxiety-equivalent translation of anxiety into a ... determination of the grams of unknown equivalent to one mole of H+ is called equivalent weight. For a +1 ion, the equivalent weight and the molar mass are identical. For a +2 or +3 ion, the equivalent weights are one half and one third of the molar masses, respectively. Before you come to class: • Read sections 23-1 through 23-3 of your textbook. ♦ Determining Epoxy Equivalent or Amine Value The following table describes the procedure for determining the epoxy equivalent of epoxy resins or the amine value of polyamide resins. Determining Epoxy Equivalent or Amine Value Step Action 1 ♦ Analytically weigh 1.0 ± 0.001 g of the 75% solids epoxy, 0.4 ± 0.001 g of the 70%determination of the grams of unknown equivalent to one mole of H+ is called equivalent weight. For a +1 ion, the equivalent weight and the molar mass are identical. For a +2 or +3 ion, the equivalent weights are one half and one third of the molar masses, respectively. Before you come to class:
The amine value identify the primary, secondary and tertiary amines. Important for the reaction with epoxy resins are only the nitrogen bond hydrogenatom of the primary and secondary amines. The hydrogen equivalent is the calculation of the molecular weight of the polymanine divided by the amount of the active hydrogen atom. Jun 01, 2019 · The reaction was stopped when the target amine value (from 40 for CC1 based PUPA, 69 for CC2 based PUPA, and 97 for CC3 based one) was achieved. The target amine value was calculated as per Eq. and the resulting amine equivalent weights are reported in Table 2. (1) T a r g e t A m i n e V a l u e = 56100 × (# o f a m i n e e q u i v a l e n t ...
8.1 Calculate the total amine value as follows: Total amine value 5 ~V 3 N 3 56.1!/S (1) where: V = HCl required for titration of the specimen ( 7.2 ), mL, N = normality of the HCl solution, and S = specimen weight used, g. 8.2 Calculate the amine value of secondary and tertiary amine groups as follows: Titration S amine value of secondary and (2) In the Cascades, snowpack densities are around 20-30% in the winter to 30-50% in the spring. However, east of the Cascades, the snowpack density is much less. Typical values are 10-20% in the winter and 20-40% in the spring. To determine the depth of snow using snow water equivalent and density, use the following formula:
determination of the grams of unknown equivalent to one mole of H+ is called equivalent weight. For a +1 ion, the equivalent weight and the molar mass are identical. For a +2 or +3 ion, the equivalent weights are one half and one third of the molar masses, respectively. Before you come to class: • Read sections 23-1 through 23-3 of your textbook. Epoxy equivalent = starting weight (g) * 100 (consumption (ml) * n * f)-(amine number / 56.1) n = normality of the titrant f = factor of the titrant Lower amine values indicates lower amine content and a higher molecular weight for the overall polyamine. Amine equivalent weight is the number of grams of a given product that contains one equivalent of amine groups (NH). Equivalent weight = 56100/Amine Molecular Weight is determined by multiplying the equivalent weight by the amine functionality
XIX,3. Determination of amines by bromination . . 698 XIX,4. Determination of amines by titration as bases in non-aqueous solvents ..... 69. 8 XIX,5. Determination of the equivalent weight of an amine (base) by analysis of its chloroplatinate . .700 XIX.6. Determination of the equivalent weight of an amine by Tosoh is one of the world's largest producers of ethyleneamines. Derived from EDC,ammonia and caustic soda,ethyleneamines are used in myriad applications such as agricultural chemicals, chelating agents, oil additives, rubber chemicals, and others. Generally the amine oxidase activity and the [K.sub.m] values for different substrates are studied with spectrophotometrical methods [14, 15], but also electrochemical methods are used. Purification and properties of amine oxidase from pea seedlings/Amiini oksudaasi puhastamine ja omadused
of epoxy group, was determined by titration accord- the ratio: AHEW · 100/EEW of resin or 42.57 · ing to literature [30] and it was found equal to 100/224.29 = 19 phr (phr = parts by weight of 224.29 g/eq. The amine hydrogen equivalent weight amine per 100 parts of resin). Equivalent weight definition, the combining power, especially in grams (gram equivalent ), of an element or compound, equivalent to hydrogen as a standard of 1.00797 or oxygen as a standard of 8; the atomic weight divided by the valence. Product Amine Hydrogen Amine Value Viscosity Key Attribute Equivalent Weight (mg KOH/g) @ 25C (cps) (AHEW) VERSACURE ® RAC 9089. 75 380 - 410 80 - 150 Faster curing amine hardner, also available as nonyl phenol free version. VERSACURE ® RAC 9092. 92 325 - 355 80 - 150 Lower viscosity, fast curing agent. VERSACURE ® RAC 9093. 84 345 - 375 550 ... n Molecular weight of amine divided by the number of active hydrogens in the molecule. ... Amine Equivalent Weight. ... Amine Value. Amino-Amino Acid. For example, in the following two reactions the equivalent weight of H 2 SO 4 would be 49 grams or 0.5 mol in the first reaction but 98 grams or 1 mol in the second. On the other hand, sodium hydroxide has the same equivalent weight in both reactions, one mol or 40 grams. (1) H 2 SO 4 + 2NaOH -----> Na 2 SO 4 + 2H 2 O (2) H 2 SO 4 + NaOH ... Note that a total ammonia value (NH3 + NH4) cannot be trivially converted from "nitrogen" to "ion" form or vice versa. The total ammonia value must first be broken into component NH3 and NH4 values, then those converted individually to NH3-N and NH4-N and added together. Jul 22, 2018 · Metric weight units are based around the weight of respective metric volumes of water. For example, a liter of water weighs one kilogram. Imperial / American measurements. Precious metals are normally measured in "troy" units (troy pounds and troy ounces), please do not confuse these with the standard measurements.
Syn. Equivalent weight, gram-equivalent. Gram-equivalent weights for various cases: 1. Complex ion. The gram-equivalent weight of a complex ion is equal to the formula weight of the ion divided by its valence. Examples. The gram-equivalent weight of the OH -ion is 16.000 + 1.008 = 17.008 g and of the Ca ++ ion is 40.08/2 = 20.04 g. 2. Acid.