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Triethylamine is prepared by the alkylation of ammonia with ethanol: [10]. NH 3 + 3 C 2 H 5 OH → N(C 2 H 5) 3 + 3 H 2 O. The pK a of protonated triethylamine is 10.75, [4] and it can be used to prepare buffer solutions at that pH.
It is not clear how many elements beyond the expected island of stability are physically possible, whether period 8 is complete, or if there is a period 9. The International Union of Pure and Applied Chemistry (IUPAC) defines an element to exist if its lifetime is longer than 10 −14 seconds (0.01 picoseconds, or 10 femtoseconds), which is the ...
Superconductivity is the ground state of many elemental metals. Superconductors come in multiple varieties: Conventional superconductor: A superconductor described by the BCS theory with a singlet order parameter. Unconventional superconductor: A superconductor which breaks additional symmetries.
Triethanolamine is used primarily in making surfactants, such as for emulsifier.It is a common ingredient in formulations used for both industrial and consumer products. The triethanolamine neutralizes fatty acids, adjusts and buffers the pH, and solubilizes oils and other ingredients that are not completely soluble in wate
"To get the same amount of 50 grams of protein that you get from steak," he says, "you would need to consume more than twice as many soybeans in terms of overall weight."
There is, for example, significant variation in these cell types depending on the specific surface proteins they possess. An extensive listing of human cell types was published by Vickaryous and Hall in 2006, collecting 411 different types of human cells (with 145 types of neuron among those). [11]
The church was called "Catholic" meaning "universal" from very early in the second century, a tacit acknowledgement of the many different cultures it encompassed. Early Christianity suffered great, although intermittent, persecution from the state until Emperor Constantine the Great issued the Edict of Milan in 313 AD, legalizing Christianity.
There are known formulae to evaluate the prime-counting function (the number of primes smaller than a given value) faster than computing the primes. This has been used to compute that there are 1,925,320,391,606,803,968,923 primes (roughly 2 × 10 21 ) smaller than 10 23 .