phenolphthalein वाक्य
उदाहरण वाक्य
मोबाइल
- Despite concerns regarding its carcinogenicity, the use of phenolphthalein as a laxative is unlikely to cause ovarian cancer.
- The FDA is also considering action on phenolphthalein and is expected to make a decision within the next few months.
- All non-prescription laxatives that include phenolphthalein would have to be reformulated or taken off the market as part of
- Phenolphthalein has been found to inhibit human cellular calcium influx via store-operated calcium entry ( SOCE, see ).
- The review of phenolphthalein ( cq ) was provoked by a government study that showed it to be carcinogenic in laboratory animals.
- The ingredient, phenolphthalein, has been used in Ex-Lax for 91 years since the laxative was introduced in 1906.
- At pH ranges outside 0-12, other molecular structure changes result in other color changes; see Phenolphthalein for details.
- Other examples are phenolphthalein and thymolphthalein, colorless in acidic to neutral pH, but becoming pink and blue in alkaline environment.
- Ex-Lax with phenolphthalein, a leader in the industry, has been sold in the U . S . since 1905.
- If the sample contains hemoglobin, it will turn pink immediately upon addition of the peroxide, because of the generation of phenolphthalein.
- Just do a base-> acid titration with phenolphthalein .-- Bennybp 21 : 31, 2 May 2007 ( UTC)
- The FDA will accept comments from manufacturers, consumers and other interested parties for the next month, then make a decision on phenolphthalein.
- Phenolphthalein adopts four different states in aqueous solution : Under very strongly acidic conditions, it exists in protonated form, providing an orange coloration.
- Schering-Plough Corp ., another major manufacturer of laxatives, said its Correctol and Feen-A-Mint don't contain phenolphthalein.
- All non-prescription laxatives that include phenolphthalein would have to be reformulated or taken off the market as part of the FDA's proposal.
- In 1871 he discovered the synthesis of phenolphthalein by condensation of phthalic anhydride with two equivalents of phenol under acidic conditions ( hence the name ).
- The indicator that I used was phenolphthalein, and at the end of the experiment, the color of the solution is a pale pink color.
- A group of FDA experts met behind closed doors in April and determined that the ingredient, known as phenolphthalein, posed a possible risk to humans.
- One method of testing a structure for carbonatation is to drill a fresh hole in the surface and then treat the cut surface with phenolphthalein indicator solution.
- The phenolphthalein used in this test has been modified from its conventional form, in that it has been oxidized back to its normal, colored form.
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