So that translates to 0.243 grams of NaF per 100mL of toothpaste and 0.15 grams of F- per 100mL of toothpaste. It's nice that they both give the concentration of the fluoride ion, because you can compare the two. It wouldn't help as much if one gave the concentration of NaF and ...
The proposed set for determining the activity of metalloelostase in biological liquids contains a polystyrene case with immobilized marker enzyme bonded with protein substrate that contains the Ala-Ala sequence, elastase, phenylsulfonylfluoride as serine proteinase inhibitor, phosphate buffer solution, ...
Poly(vinylidene fluoride-co-hexafluoropropene) and Nafion were selected as the polymer matrix, while 1-butyl-3-methylimidazolium trifluoromethanesulphonate (BMImTfO) and 1-ethylimidazolium trifluoromethanesulphonate (EImTfO) were used as aprotic and protic ionic liquids, respectively. These composite ...
Both spring barley and radish exposed to ILs accumulated a large amount of fluoride ion. The online version of this article (doi:10.1007/s11356-017-9439-x) contains supplementary material, which is available to authorized users.doi:10.1007/s11356-017-9439-xRobert Biczak...
It has been found advantageous to carry out the reaction in the presence of an acidic type cat6 alyst such, for example, as sulfuric acid, phosphoric acid; the halogen acids, such as hydrochloric acid, hydrofluoric acid (alone or with boron trifluoride), boron fluoride (including its complexe...
“Refractive Properties of Barium Fluoride,”Journal of the Optical Society of America628-32 (1964) and B. C. Platt, H. W. Icenogle, J. E. Harvey, R. Korniski and W. L. Wolfe, “Technique for Measuring the Refractive Index and Its Change with Temperature in the Infrared,” 65Journal...
The present invention relates to an ionic liquid comprised of a salt, the anion of which is chloride (Cl−), fluoride (F−), oligomeric fluorohydrogenate ions, (HF)nF− (n=1.0−4.0), or combination thereof In another embodiment, the present invention relates to a process of separa...
Fluorinated vinyl monomers, such as vinyl fluoride and vinylidene fluoride, are widely used to make polymers and copolymers that are useful in many applications. For example, poly(vinyl fluoride) finds wide use as a protective or decorative coating on substances such as cellulosics, flexible vinyls...
It is noted that within the noted anions, alkyl groups, include, but are not limited to methyl, ethyl, propyl (linear and branched) and butyl (linear and branched). In particular, anions include, but are not limited to, chloride, bromide, iodide, fluoride, nitrate, triphenylborate, ...
and the color changes seen in the tape are indicative that such chemical is or is not present above a predefined level. For example, a strip used to monitor a reservoir holding drinking water could indicate whether the water contains the desired level of fluoride, and/or whether the water is...