ammonium hydroxide

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ammonium hydroxide

[ə′mōn·yəm ‚hī′dräk‚sīd]
(inorganic chemistry)
NH4OH A hydrate of ammonia, crystalline below -79°C; it is a weak base known only in solution as ammonia water. Also known as aqua ammonia.
References in periodicals archive ?
Treatments of NMSO and aqueous ammonia shifted the peaks indicative of absorbed water from 1641 to 1666 [cm.
The Powerspan CO2 capture process is expected to be readily integrated with the ECO technology, which uses aqueous ammonia to absorb high levels of sulfur dioxide, nitrogen oxides and mercury.
24% aqueous ammonia (or ammonia) must be registered with the European Chemicals Agency (in accordance with the requirements of REACH), the manufacturer or the placing on the market.
The CO2 removal process is expected to be readily integrated with Powerspan's multi- pollutant control technology, called Electro-Catalytic Oxidation (ECO), which uses aqueous ammonia to absorb high levels of sulfur dioxide, nitrogen oxides, and mercury.
The SCR reagent will be generated by the ULTRA system and will use urea as opposed to ammonia, which will eliminate the hazards associated with the transport, storage and handling of anhydrous or aqueous ammonia.
The catalytic NOx reduction method (SCR) consisting of aqueous ammonia injection into the reactor with a catalyst, the mixed method, which is a combination of the method of non-catalytic (SNCR) and catalytic (SCR) and others.
Norris stated that the company conducted a comprehensive evaluation, including the possible use of aqueous ammonia -- a less concentrated form of ammonia -- for the SCR system.
Fuel Tech's ULTRA process provides for the safe and cost-effective on-site conversion of urea to ammonia for use as a reagent in the selective catalytic reduction of nitrogen oxide (NOx), eliminating the hazards associated with the transport, storage and handling of anhydrous or aqueous ammonia.
Project Description: Anticipated activities and improvements that will be part of this project include: Design and construction of an aqueous ammonia open building including: Roof or canopy; Spill containment wall capable of holding 110% of the tank volume; and Electrical and Instrumentation & Control.