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A Schlenk flask, or Schlenk tube, is a reaction vessel typically used in air-sensitive chemistry, invented by Wilhelm Schlenk. It has a side arm fitted with a PTFE or ground glass stopcock , which allows the vessel to be evacuated or filled with gases (usually inert gases like nitrogen or argon ).
This is a list of Superfund sites in Massachusetts designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. . The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contamination
A Schlenk line with four ports. The cold trap is on the right. Close-up view, showing the double-oblique stopcock, which allows vacuum (rear line) or inert gas (front line) to be selected. The Schlenk line (also vacuum gas manifold) is a commonly used chemistry apparatus developed by Wilhelm Schlenk. [1] It consists of a dual manifold with ...
Ashland was the original start line for the Boston Marathon from 1897 to 1923. As traditional marathon distances grew, the start line needed to be pushed back to Hopkinton in 1924. There is a small park on Pleasant Street in Ashland to remember this history, featuring a sign that reads "It all started here". [30] [31]
Schlenk can refer to: People. Wilhelm Schlenk (1879-1943), German chemist; In chemistry. Schlenk flask; Schlenk line. or Schlenk apparatus; Schlenk equilibrium;
Norah Zoummar, who co-owns 33 All-American Diner in Ashland, received a Black Excellence Award for her charity work to support children in Uganda.
An Ashland, Massachusetts doctor was sentenced to prison Thursday for her role in the Jan. 6 breach of the Capitol, where she's accused of assaulting a police officer.
The district includes the following localities: [3] Ashland; Framingham; part of Franklin; Holliston; Hopkinton; Medway; part of Natick; The current district geographic boundary overlaps with those of the Massachusetts House of Representatives' 5th Middlesex, 6th Middlesex, 7th Middlesex, 8th Middlesex, 13th Middlesex, 10th Norfolk, and 10th Worcester districts.