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A dry media reaction or solid-state reaction or solventless reaction is a chemical reaction performed in the absence of a solvent. [1] Dry media reactions have been developed in the wake of developments in microwave chemistry, and are a part of green chemistry. [2] The drive for the development of dry media reactions in chemistry is:
An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.
Serve as the disbursing agent for payments from the City Treasury by distribution of checks and electronic payments in the most modern, secure, effective, and efficient method. Maximize amount of cash available for investment after meeting daily cash requirements, thereby providing a source of revenue to support the city's financial commitments.
Rosin (/ ˈ r ɒ z ɪ n /), also known as colophony or Greek pitch (Latin: pix graeca), is a resinous material obtained from pine trees and other plants, mostly conifers.The primary components of rosin are diterpenoids, i.e., C 20 carboxylic acids.
Federal excise tax revenue from tobacco products peaked in fiscal year 2010 at $17.2 billion after the increase in tobacco product tax rates in the Children's Health Insurance Program Reauthorization Act of 2009. This tax increase, which took effect in April 2009, was the most recent time federal tobacco tax rates were changed.
Long before the city was laid out or settled, Philadelphia's founder, William Penn, had planned that markets would be held regularly on the 100-foot (30 m) wide High Street. The city's first market stalls were situated in the center of the thoroughfare starting at Front Street and proceeding west eventually to 8th Street.
Nearly 66 years after the battered body of a young boy was found stuffed inside a cardboard box, Philadelphia police say they have finally unlocked a central mystery in the city’s most notorious ...
The University City Science Center filed a lawsuit to stop the Philadelphia Redevelopment Authority from seizing two parcels of land in the 3800 block of Market Street in West Philadelphia. [3] The lawsuit was filed on May 28, 2010.