Breath ethers

Ethers are much less soluble in water than alcohols are. Drinking alcohol may make a person drowsy, but breathing ether fumes will put a person to sleep completely. In fact, one of the first uses of diethyl ether (usually just called ether) was as an anesthetic to put patients to sleep during surgery. 

A much greater yield can be had if the chemist uses carbitol as a solvent instead of propanol [62]. Carbitol is a really hazardous solvent and should not be breathed or placed on one s skin. The reaction proceeds exactly as before except that after 24 hours of reflux and cooling the mixture is slowly poured into 1500mL ice cold dH20. The upper solvent layer is separated and the aqueous layer extracted with 200mL ether which is then combined with that upper solvent layer. The combined solvent portions are vacuum distilled to afford safrole-azide (or phenylisopropyi-azide for amphetamine) with the yield rising to 70%. 

Narcosis Narcosis is a state of deep stupor or unconsciousness, produced by a chemical substance, such as a drug or anesthesia. Inhalation of certain chemicals can lead to narcosis. For example, diethyl ether and chloroform, two common organic solvents, were among the first examples of anesthesia known. Many other chemicals that you would not suspect can also cause narcosis. For example, even though nitrogen gas comprises 80% of the air we breathe and is considered chemically inert (unreactive) it can cause narcosis under certain conditions. Always work with adequate inhalation and avoid inhaling chemical fumes, mists, dusts etc. whenever possible. Use fume hoods and respirators as necessary. 

Schroder and Witt ° have reported the synthesis of crown ethers having fluctuating ring sizes which they have termed breathing crown ethers . The structures are based on the bullvalene subunit and, as the tetracyclic subunit undergoes Cope rearrangement, the size of the macroring likewise varies. The synthetic steps follow the conventional routes used for the preparation of crown ethers and are illustrated in Eq. (3.44). 

Atem-einsatz, m. drum (of a German mask), -gerat, n. = Atmungsgerat. -maske, /. gas mask, respirator, -rohr, n -rijhre, /. breathing tube, respiratory tube, -zug, m. breath, aterisch, a. ethereal. 

When, in the preliminary exercises preceding the actual practice, practitioners build up the Tree of Life in their aura, the paths are formulated as a consequence, since they are subjective reactions to the objective power of the Sephiroth. The Fountain Breath exercise then unifies the influences of all the Paths and the Sephiroth. This happens because there is only One Power that flows through all the paths and manifests in a ten-fold aspect as the Sephiroth, the outpouring of the Most Holy One that is Mezla, grace, by which the worlds are nourished and sustained. For grace is not some abstract poetic metaphor, but an actual etheric, astral, and spiritual substance. Alchemy names it the water that burns and the fire that flows. It is the First Matter. 

J. J. Thompson, discoverer of the electron, adhered to the belief in the existence of the ether, which is as essential to our lives as the air we breathe, long after this concept was disproved. 

An increase in alveolar ventilation will cause an increase in the alveolar concentration of inhaled agent when semi-closed or open breathing circuits are employed. The effect is most noticeable with a highly soluble anaesthetic, such as diethyl ether. With modern, relatively insoluble agents, such as isoflurane and desflurane, the effects of changes in alveolar ventilation are less pronounced. 

When the heating is over, the glass is removed, heated and cleaned with a cloth soaked in petroleum ether. If the wine contains fluoride, the glass will show persistent etching, visible to the naked eye. No attention is paid to images which appear when the glass is breathed on but disappear when the glass dries. 

It has been shown experimentally that intravenous injections of sodium thiocyanate solutions bring rabbits out of the unconsciousness due to ether, amytal or morphine more rapidly than is normal. The rabbits breathe approximately twice as rapidly under these conditions. 

Would Nature have taken the care to place the lungs, those admirable and indefatigable bellows, near the heart simply to refresh it No, they have a more important office it is to inhale and to transmit to the heart this ethereal spirit which comes to the aid of the vital spirits repairs their loss and multiplies them sometimes. This is why we breathe oftener when much agitated, because a greater waste of spirits them takes place, and Nature seeks to repair this loss. 

A number of organic compounds can be measured as the unmetabolized compound in blood, urine, and breath. In some cases, the sample can be injected along with its water content directly into a gas chromatograph. Direct injection is used for the measurement of acetone, -butanol, dhnethylformamide, cyclopropane, halothane, methoxyflurane, diethyl ether, isopropanol, methanol, methyl-n-butyl ketone, methyl chloride, methylethyl ketone, toluene, trichloroethane, and trichloroethylene. 

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