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He invented the first ammonia- free hair color, after developing an allergy to the chemical that initially led doctors to encourage him to leave his profession. [ 2 ] His company, the Houston-based Farouk Systems, currently employs 600+ people in the US, and exports its line of hair and skin care products under the BioSilk, SunGlitz and ...
The purest form of shampoo avoidance is to use only water to wash hair. [6] Alternatively, the hair can be washed with baking soda, followed by an acidic rinse such as diluted apple vinegar. [1] [2] [8] [14] Essential oils can be used to give the hair a pleasant aroma. [1] Japanese traditional hair cleansing is with seaweed powder. [citation ...
Hair care or haircare is an overall term for hygiene and cosmetology involving the hair which grows from the human scalp, and to a lesser extent facial, pubic and other body hair. Hair care routines differ according to an individual's culture and the physical characteristics of one's hair.
Francium-223 is the most stable isotope, with a half-life of 21.8 minutes, [8] and it is highly unlikely that an isotope of francium with a longer half-life will ever be discovered or synthesized. [22] Francium-223 is a fifth product of the uranium-235 decay series as a daughter isotope of actinium-227; thorium-227 is the more common daughter. [23]
The claim that francium has a lower electronegativity than caesium is widely, though not universally, repeated: this would be expected on the basis of periodicity, but measurements show that the ionization energy of francium is higher (4.0712 eV; Andreev, S.V.; Letokhov, V.S.; Mishin, V.I., Laser resonance photoionization spectroscopy of ...
The CsFr molecule is predicted to have francium at the negative end of the dipole, unlike all known heterodiatomic alkali metal molecules. Francium superoxide (FrO 2) is expected to have a more covalent character than its lighter congeners; this is attributed to the 6p electrons in francium being more involved in the francium–oxygen bonding. [4]
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