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An injector pen (also called a medication pen) is a device used for injecting medication under the skin. First introduced in the 1980s, injector pens are designed to make injectable medication easier and more convenient to use, thus increasing patient adherence .
After exposure to 63 to 405 mg/m 3 of benzene for 1 to 5 hours, 51 to 87% was excreted in the urine as phenol over a period of 23 to 50 hours. In another human study, 30% of absorbed dermally applied benzene, which is primarily metabolized in the liver, was excreted as phenol in the urine.
30.77 kJ/mol at 80.1 °C Std entropy change of vaporization, Δ vap S o: 113.6 J/(mol·K) at 25 °C 87.1 J/(mol·K) at 80.1 °C Solid properties Std enthalpy change of formation, Δ f H o solid? kJ/mol Standard molar entropy, S o solid: 45.56 J/(mol K) Heat capacity, c p: 118.4 J/(mol K) at 0 °C Liquid properties Std enthalpy change of ...
After injection the used tube was often pinned to the receiving soldier's collar to inform others of the dose administered. [1] The syrette was adopted for use by the United States Army in 1940. [1] The US military also distributed atropine in syrettes. [citation needed] Chemical treatment was subsequently distributed in autoinjector form ...
Hydroquinone, also known as benzene-1,4-diol or quinol, is an aromatic organic compound that is a type of phenol, a derivative of benzene, having the chemical formula C 6 H 4 (OH) 2. It has two hydroxyl groups bonded to a benzene ring in a para position. It is a white granular solid. Substituted derivatives of this parent compound are also ...
The properties of deuterated benzene are very similar to those of normal benzene, however, the increased atomic weight of deuterium relative to protium means that the melting point of C 6 D 6 is about 1.3 °C higher than that of the nondeuterated analogue. The boiling points of both compounds, however, are the same: 80 °C.
Alaska holds the all-time U.S. record. The mercury plummeted to 80 degrees below zero on Jan. 23, 1971, in Prospect Creek, north of Fairbanks.
Inhaling 1147 mg/m 3 of benzotrichloride (BTC) for 3 hours resulted in 1 out of 6 male rats dying (after 3 days). On the other hand, inhaling 995 mg/m 3 of BTC for 3 hours resulted in 4 out of 6 female rats dying within 13 days. However, reducing the duration of exposure to only one hour with a concentration just above 800 mg/m 3 resulted in no ...