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Others have followed such as Warner-Lambert's introduction of Efferdent denture cleanser tablets in 1966 [3] and Renew denture cleaner powder in 1986 by Mid-Continental Dental Supply Co. Ltd. [4] Over time, orthodontic and sport dental appliance cleaners have also emerged on the market such as Renew Ortho & Sport with formulations that account ...
4-Fluoronitrobenzene can be hydrogenated to give 4-fluoroaniline, [3] which is a precursor to the fungicide fluoroimide and parafluorofentanyl. Owing to the presence of the electron withdrawing nitro group, the fluoride is a good leaving group in fluoronitrobenzenes. Thus reaction with phenoxide gives the mononitrodiphenylether. [4]
Simple Green has been re-listed as an approved Surface Washing Agent per the EPA's National Contingency Plan after being de-listed in 1995. The new 2013 re-formulation, SW-65 was re-listed with the EPA on 7/09/2013 [6] [7] EPA toxicity testing reports that Menidia beryllina and Mysidopsis bahia survive slightly better in a water solution of 1:10 mixture of Simple Green with crude oil#2 (LC50 ...
The Food Protection Committee started in 1961 to provide objective quality standards for food-grade chemicals. Parts of the first edition were published in loose-leaf form between 1963 and 1966. The scope of the first edition is limited to substances amenable to chemical characterization or biological standardization which are added directly to ...
[1] [3] Results of a high level of evidence meta-analysis recently found that floss may not be the most effective method for interdental cleaning, contrary to common belief at the time. [4] Especially for individuals lacking dexterity or compliance, waterjet irrigators, and interdental brushes were found to be significantly more effective than ...
Tooth powder was historically used among the Romans to clean and whiten teeth, to fix them when loose, to strengthen the gums, and to assuage toothache. [2] [3] [4] They made tooth powder from a variety of substances, such as the bones, hoofs, and horns of certain animals; [2] crabs; oyster [5] and murex shells; and egg-shells. These ...
In contrast, the boiling points of PhF and benzene are very similar, differing by only 4 °C. It is considerably more polar than benzene, with a dielectric constant of 5.42 compared to 2.28 for benzene at 298 K. [4] Fluorobenzene is a relatively inert compound reflecting the strength of the C–F bond.
Listerine (/ ˈ l ɪ s t ər iː n /) is a brand of antiseptic mouthwash that is promoted with the slogan "Kills germs that cause bad breath". Named after Joseph Lister, who pioneered antiseptic surgery at the Glasgow Royal Infirmary in Scotland, Listerine was developed in 1879 by Joseph Lawrence, a chemist in St. Louis, Missouri.