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Stable isotopic characterization of gunpowder
https://www.researchgate.net/publication/260112202_Stable_isotopic_characterization_of_gunpowder_ingredients_from_the_mid_to_late_nineteenth_century_in_Japan
The objective of the present study is to employ stable isotope ratio measurements (δ15N, δ34S and δ13C) of the nitrogen, sulphur and carbon in black powder (a mixture of saltpetre, native ...
Using isotopes as tracers — Science Learning Hub
https://www.sciencelearn.org.nz/resources/1801-using-isotopes-as-tracers
Radioactive isotopes and radioactively labelled molecules are used as tracers to identify abnormal bodily processes. This is possible because some elements tend to concentrate (in compound form) in certain parts of the body – iodine in the thyroid, phosphorus in the bones and potassium in the muscles. When a patient is injected with a ...
Tracer Isotope - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/chemistry/tracer-isotope
C. Kendall, ... M.B. Young, in Treatise on Geochemistry (Second Edition), 2014 Abstract. This chapter introduces the fundamentals of environmental isotope tracers in hydrologic studies, provides an overview of the most common applications of light isotopes for understanding the hydrologic cycle and tracing solutes in aquatic systems, and summarizes recent advances in …
Isotopic Tracing - SSTE - UNIGE
https://www.unige.ch/sciences/terre/en/research/isotope-geochemistry-geochronology-and-thermochronology/isotopic-tracing/
Equipment. The isotopic tracing unit hosts: 1. a clean laboratory for the separation of Sr, Nd, Pb, Cu, Zn and Fe from various matrices (both solid and fluid); 2. a Merchantek micromill for microsampling of solid materials (e.g., minerals and fossils);
Isotope container analysis - Gunloads.com
https://castboolits.gunloads.com/showthread.php?358363-Isotope-container-analysis
This is a straight walled 20 ounce container 3" tall with the top and 1 1/2 " diameter. There may be an open cell foam insert. Analysis in this specimen was 2.5% Sb, the rest Pb. This is a 8 ounce, 2 1/2" tall container that has a slightly tapered body. …
Gunshot Residue Analysis (GSR) - Microtrace
https://www.microtrace.com/material/gunshot_residue_gsr/
Gunshot Residue Production and Analysis. Forensic investigations often rely on the evidence of gunshot and other firearms-related residues. When one fires a gun, the explosion creates a fine cloud of particles. These particles consist of burnt and unburnt powder, as well as traces from the bullet, its casing, and the gun itself.
Detecting Organic Gunshot Residues | RTI
https://www.rti.org/impact/detecting-organic-gunshot-residues
Every time an individual fires a gun, two kinds of residue are created: organic and inorganic. Inorganic residues, like the elements barium and antimony, derive from the metallic components of the firearm (the bullet and the casing), as well as from the primer, which is the mix of chemicals that detonates the propellant. Organic residues, like the complex hydrocarbons nitroglycerin …
Gunshot residue - Wikipedia
https://en.wikipedia.org/wiki/Gunshot_residue
Gunshot residue (GSR), also known as cartridge discharge residue (CDR), "gunfire residue" (GFR), or firearm discharge residue (FDR), consists of all of the particles that are expelled from the muzzle of a gun following the discharge of a bullet. It is principally composed of burnt and unburnt particles from the explosive primer, the propellant (gunpowder), and vaporized lead.
How to Make Gunpowder: 8 Steps (with Pictures) - wikiHow
https://www.wikihow.com/Make-Gunpowder
Use a mortar and pestle to grind each ingredient into a fine powder. Grind each ingredient separately, cleaning the mortar and pestle in between uses. You can use a ball mill to grind the components if you're planning on making a lot of gunpowder. A ball mill is used to both grind and mix powders safely. 2.
Storage of smokeless powders | How to store gunpowder …
https://www.vihtavuori.com/powders/storage-of-powders/
The estimated shelf-life of Vihtavuori gun powders is a minimum of 10 years, if stored and sealed in its original containers at a temperature of circa 20°C/ 68°F and a relative humidity of 55-65 %. How do I store reloading powders? STORE GUNPOWDER IN A COOL, DRY PLACE. Be sure the reloading powder storage area selected is free from any ...
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