methyl sulfate

methyl sulfate

[′meth·əl ′səl‚fāt]
(organic chemistry)
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tallow amidoethyl)-2-hydoxyethyl ammonium methyl sulfate), water, preservative, fragrance and optionally an anti-static agent, dye transfer inhibition/color protection agent, odor removal/odor capturing agent, soil shielding/soil releasing agent, ultraviolet light protection agents, sanitizing agent, disinfecting agent, water repellency agents, insect repellency agent, anti-pilling agents, scouring agent, mildew removing agent, enzyme, allergicide agent, starch agent, bleaching agent, optical brightness agent, colorant/hueing agent, and/or surfactant.
To fabricate the sensor, polyvinyl alcohol functionalized with methyl pyridinium methyl sulfate (PVA-SbQ) containing a layer of l-glutamate oxidase (L-GLOx) was formed on the electrode.
The monomers [2-(acryloyloxy)ethyl]trimethylammonium chloride (ClAETA) and [2-(acryloyloxy)ethyl]trimethylammonium methyl sulfate (SAETA) were used as received (Aldrich).
The polymerization yield was 97.2% for the 100,000 g [mol.sup.-1] fraction and ~95.0% for the filtration fraction of poly[2-(acryloyloxy)ethyl]trimethylammonium chloride (P(ClAETA)) and poly[2-acryloyloxy)ethyl]trimethylammonium methyl sulfate (P(SAETA)), respectively.
Then the excess of anions that did not exchange with methyl sulfate was removed by washing with water of adjusted pH.
This result can be attributed to an easier release of the [Cl.sup.-] anions, in comparison to the methyl sulfate anions, associated with the quaternary ammonium groups.
Figure 4 shows the results obtained with the P(SAETA), which contains methyl sulfate anions instead of chloride anions as exchanger groups.
The effect of the exchange of methyl sulfate anions with S[O.sub.4.sup.2-] anions was also studied.
Moreover, the exchange in the polymeric structure of the methyl sulfate species by the sulfate anions turned out to be difficult.
They then exposed the resulting first generation (F1) seeds to a chemical mutagen, ethyl methyl sulfate, and grew the seeds on to produce an F2 generation.
tallow amidoethyl)-2-hydoxyethyl ammonium methyl sulfate), preservative, and fragrance; optionally an anti-static agent, dye transfer inhibition/color protection agent, odor removal/odor capturing agent, soil shielding/soil releasing agent, ultraviolet light protection agents, sanitizing agent, disinfecting agent, water repellency agents, insect repellency agent, anti-pilling agents, souring agent, mildew removing agent, enzyme, allergicide agent, starch agent, bleaching agent, optical brightness agent, colorant/hueing agent, and/or surfactant; and drying the fabric.