Framed Prints
Framed Print of Performing the Marsh Test, 1856
Performing the Marsh Test, 1856. Doctor Alfred Swaine Taylor (left) and a colleague, performing the Marsh test on samples taken from the body of John Parsons Cook. The two were looking for traces of arsenic and antimony. The Marsh test is a method for the detection of minute amounts of arsenic in foods (the residue of fruit spray) or in stomach contents. The sample is placed in a flask with arsenic-free zinc and sulfuric acid. Arsine gas (also hydrogen) forms and is led through a drying tube to a hard glass tube in which it is heated. The arsenic is deposited as a "mirror" just beyond the heated area and on any cold surface held in the burning gas emanating from the jet. Antimony gives a similar test, but the deposit is insoluble in sodium hypochlorite, whereas arsenic will dissolve. The test was named for its inventor, the English chemist James Marsh. © NLM / Science Source
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Media ID 47342534
1856 Acid Acidic Acids Alfred Analysis Arsenic Burning Chemist Chemists Cold Cook Crime Criminal Detection Drying English Flask Forensic Glass Hard Hydrogen Insoluble Invention Inventions Investigation John Legal Marsh Method Methods Parsons Performing Poison Poisoning Poisons Research Sample Samples Sodium Surface Taylor Technique Techniques Test Testing Tests Toxicologist Toxicology Trace Tube Tubes
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
Your artwork will be printed as shown in the preview. To adjust please select Edit Printed Image under the Buy button
Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 24.4cm x 19cm (9.6" x 7.5")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")
