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1. en.wikipedia.org › wiki › SodiumSodium - Wikipedia

   en.wikipedia.org › wiki › Sodium

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   4 days ago · Sodium reacts with alcohols and gives alkoxides, and when sodium is dissolved in ammonia solution, it can be used to reduce alkynes to trans-alkenes. [71] [72] Lasers emitting light at the sodium D line are used to create artificial laser guide stars that assist in the adaptive optics for land-based visible-light telescopes.

   • Natrium (Disambiguation)

     Natrium is the Latin name of sodium. Natrium may also refer...

   • Abundance of Elements in Earth's Crust

     Abundance of chemical elements in Earth's (continental)...

   • Isotopes of Sodium

     There are 20 isotopes of sodium (11 Na), ranging from 17 Na...

   • Flame Test

     A flame test is relatively quick test for the presence of...

   • Standard Atomic Weight

     Example: copper in terrestrial sources. Two isotopes are...

2. en.wikipedia.org › wiki › AstatineAstatine - Wikipedia

   en.wikipedia.org › wiki › Astatine

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   4 days ago · Astatine is a chemical element; it has symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements. All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Consequently, a solid sample of the ...

   • Appearance: unknown, probably metallic
   • Mass number: [210]

   • Atomic number (Z): 85

3. People also ask

   What is sodium bromide?

   • Medical Definition of sodium bromide. : a crystalline salt NaBr having a biting saline taste that is used in medicine as a sedative, hypnotic, and anticonvulsant.

   Sodium bromide Definition & Meaning | Merriam-Webster Medical

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   How does bromine dissolve in water?

   • Bromine dissolves in aqueous alkali hydroxide solutions, giving bromides, hypobromites, or bromates, depending on the temperature. Bromine is readily extracted from water by organic solvents such as carbon tetrachloride, chloroform, or carbon disulfide, in which it is very soluble. In the organic solvents it gives an orange solution.

   Bromine | Properties, Uses, & Facts | Britannica

   www.britannica.com/science/bromine

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   What is bromine used for?

   • Bromine is also used in the production of catalysts, such as aluminum bromide. Bromine has other uses, as in making various dyes and the compounds tetrabromoethane (C 2 H 2 Br 4) and bromoform (CHBr 3 ), which are used as liquids in gauges because of their high specific gravity.

   Bromine | Properties, Uses, & Facts | Britannica

   www.britannica.com/science/bromine

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   How many hydrates can be isolated from bromine water?

   • From bromine water a hydrate (a clathrate) can be isolated that contains 172 water molecules and 20 cavities capable of accommodating the bromine molecules. Bromine dissolves in aqueous alkali hydroxide solutions, giving bromides, hypobromites, or bromates, depending on the temperature.

   Bromine | Properties, Uses, & Facts | Britannica

   www.britannica.com/science/bromine

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4. en.wikipedia.org › wiki › BarbiturateBarbiturate - Wikipedia

   en.wikipedia.org › wiki › Barbiturate

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   1 day ago · Barbiturates, such as phenobarbital, were long used as anxiolytics and hypnotics. Intermediate-acting barbiturates reduce time to fall asleep, increase total sleep time, and reduce REM sleep time. Today they have been largely replaced by benzodiazepines for these purposes because the latter are less toxic in drug overdose.

5. www.britannica.com › science › bromineBromine | Properties, Uses, & Facts | Britannica

   www.britannica.com › science › bromine

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   Apr 12, 2024 · Physical and chemical properties. Free bromine is a reddish brown liquid with an appreciable vapor pressure at room temperature. Bromine vapor is amber in color. Bromine has a pungent odor and is irritating to the skin, eyes, and respiratory system. Exposure to concentrated bromine vapor, even for a short time, may be fatal.

6. www.merriam-webster.com › medical › sodium bromideSodium bromide Definition & Meaning | Merriam-Webster Medical

   www.merriam-webster.com › medical › sodium bromide

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   2 days ago · The meaning of SODIUM BROMIDE is a crystalline salt NaBr having a biting saline taste that is used in medicine as a sedative, hypnotic, and anticonvulsant.

7. www.chembk.com › en › chemNaBr - ChemBK

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   Apr 9, 2024 · Odorless, with slightly bitter taste. Melting point 755 °c I relative density 3. 21. In the air to absorb moisture and caking, but not deliquescent. Soluble in water, slightly soluble in ethanol. Its aqueous solution is neutral and has electrical conductivity. The bromide ion in sodium bromide can be replaced by fluorine and chlorine.

8. www.tutorialspoint.com › hoffmann-bromamideHoffmann Bromamide Reaction Mechanism - Online Tutorials Library

   www.tutorialspoint.com › hoffmann-bromamide

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   Mar 22, 2024 · In this reaction, the amide is treated with bromine and an aqueous solution of strong base i.e., sodium and potassium hydroxide. On heating, the amide is attacked by the hydroxide group and then bromide is attached to the amide and by hydrolysis, the primary amine is formed in this reaction.