Search results
Results from the WOW.Com Content Network
United States – NEC 2008 Table 250.122 – Safeco Electric Supply; Electrical safety standards ... NFPA 496, NFPA 70 [21] Lightning protection standards
Ethylene oxide is a colorless gas at 25 °C (77 °F) and is a mobile liquid at 0 °C (32 °F) – viscosity of liquid ethylene oxide at 0 °C is about 5.5 times lower than that of water. The gas has a characteristic sweet odor of ether, noticeable when its concentration in air exceeds 500 ppm. [ 26 ]
Ammonia is used in numerous different industrial applications requiring carbon or stainless steel storage vessels. Ammonia with at least 0.2% by weight water content is not corrosive to carbon steel. NH 3 carbon steel construction storage tanks with 0.2% by weight or more of water could last more than 50 years in service. [141]
Ethanol-water mixtures have less volume than the sum of their individual components at the given fractions. Mixing equal volumes of ethanol and water results in only 1.92 volumes of mixture. [76] [81] Mixing ethanol and water is exothermic, with up to 777 J/mol [82] being released at 298 K. Hydrogen bonding in solid ethanol at −186 °C
At temperatures below 70 K, ... unsustainable water table reduction, and massive mining waste, ... NFPA 704 (fire diamond) [201] 3. 2. 2. W
The item in the saucer would provide a hint as to their future: a ring would mean that they would marry soon; clay, that they would die soon, perhaps within the year; water, that they would emigrate; rosary beads, that they would take Holy Orders (become a nun, priest, monk, etc.); a coin, that they would become rich; a bean, that they would be ...
Erythritol (/ ɪ ˈ r ɪ θ r ɪ t ɒ l /, US: /-t ɔː l,-t oʊ l /) [2] is an organic compound, the naturally occurring achiral meso four-carbon sugar alcohol (or polyol). [3] It is the reduced form of either D- or L-erythrose and one of the two reduced forms of erythrulose.
The median lethal dose (LD 50) is between 15 and 18 g/kg body weight in rats and mice, respectively, five times the LD 50 of table salt (3 g/kg in rats). The use of MSG as a food additive and the natural levels of glutamic acid in foods are not of toxic concern in humans. [ 20 ]