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Typical Liquids (Copyright Viking Pump, Inc.)
volume of ammonia is used for fertilizers. Other uses include production of nitric acid, urea, acrylonitrile; refrigeration; solvent. Ammonia liquid causes burns; the gas is extremely irritating, causing nausea and difficulty in breathing. Pump Notes: Cast iron construction, neoprene or buna n
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Application Note: Liquid Scintillation (.pdf)
. Solvent molecules in the scintillation cocktail become excited by the radiation which results in the excitation of a fluorescent molecule. When the fluor molecule returns to its ground state a blue flash of light is emitted. The light is captured by a detector and recorded as a radioactive emission
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Designed To Beat The Heat
for components under stress. Although plastics do not corrode like metals, they are prone to chemical attack. More importantly, they can experience environmental stress crazing and cracking (ESC). Every polymer has at least one solvent that will cause chemical reactions and molecular degradation even
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MICRO:Product Technology News (July '99)
interconnect and low-k dielectric technologies. The buffered, slightly acidic solvent dissolves CMP slurry without corroding copper, aluminum, or tungsten thin films or Ti, TiN, Ta, or TaN barrier films. Additives in the cleaner create a negative zeta potential, facilitating repulsion
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Why Use Process Simulation?
In this modern age of powerful computers, it often makes no sense to put pencil to paper like in the old days. Now, new software can perform repetitive chemical engineering calculations in a fraction of the time it takes to execute them by hand. Imagine you have been tasked to design a distillation
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PLASTICS REFERENCE GUIDE
miniature hand extruder contains a plasticizing unit, hot-air blower, rod feed, and electronics in one package. The compact tool from the Swiss firm Leister Process Technologies and distributed in the U.S. by Uneco Systems Inc., Romeoville, Ill., requires no additional booster and weighs only 2.8 kg
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Bean Machines
helped cut dependence on foreign oil. The U.S. in 2004 produced about 3.4 billion gallons of ethanol , equivalent to roughly 2% of annual gasoline consumption. Europe, on the other hand, has seen a decline in gasoline consumption, along with a commensurate rise in demand for diesel fuel. For years
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Introduction to Metering Technology
. A light beam passing through the liquid. is visible by reflection. According to the hardness of the particles, fast. flowing suspension may cause damage to the pump and piping system due. to abrasion. On the other hand, higher velocities of flow are desirable to. prevent the particles from settling