Estimating and controlling atomic chlorine concentration via actinometry

1999 ◽  
Vol 12 (3) ◽  
pp. 323-331 ◽  
Author(s):  
C.K. Hanish ◽  
J.W. Grizzle ◽  
F.L. Teny
Keyword(s):  
Chlorine Concentration ◽  
Atomic Chlorine

Atomic chlorine concentration and gas temperature measurements in a plasma etching reactor

1987 ◽  
Vol 61 (1) ◽  
pp. 142-148 ◽  
Author(s):  
J. Wormhoudt ◽  
A. C. Stanton ◽  
A. D. Richards ◽  
H. H. Sawin
Keyword(s):  
Plasma Etching ◽  
Chlorine Concentration ◽  
Temperature Measurements ◽  
Gas Temperature ◽  
Atomic Chlorine

scholarly journals Chlorine as a Discriminant Element to Establish the Provenance of Central Mediterranean Obsidians

2020 ◽  
Vol 6 (1) ◽  
pp. 454-476
Author(s):  
Franco Foresta Martin ◽  
Silvio G. Rotolo ◽  
Manuela Nazzari ◽  
Maria Luisa Carapezza
Keyword(s):  
Electron Microprobe ◽  
Minor Element ◽  
Igneous Rocks ◽  
Chlorine Concentration ◽  
Silicate Melts ◽  
Alkali Content ◽  
Central Mediterranean ◽  
A Minor

Abstract Chlorine is a minor element present in obsidians in quantities greater than in average igneous rocks. The chlorine concentration in obsidians is generally low, of the order of tenths of wt %, but it exhibits an appreciable differentiation among geological sources. Despite these characteristics, chlorine has rarely been taken into consideration as a possible indicator of obsidian provenance and it does not appear in the chemical analytical tables accompanying the geochemical characterisation of obsidian samples. In this work, after an overview of chlorine geochemistry and cycle, we present thirty-one new electron microprobe (EPMA) analyses, including Cl, of geologic obsidians sampled from the four sources of the Central Mediterranean, exploited in prehistoric times (Monte Arci, Palmarola, Lipari and Pantelleria). The results are compared with 175 new EPMA analyses, including Cl, of archaeological obsidians already characterised in previous work and of known provenance. As such it was possible to ascertain that each source has a characteristic chlorine concentration, showing the utility of its use in the studies of obsidian provenance. Furthermore, given that the solubility of chlorine in silicate melts is correlated to its alkali content, in particular sodium, we assessed the efficacy of simple binary graphs Cl vs Na2O to better constrain the provenance of the obsidian samples.

A Low Temperature Study of the Reactions of Atomic Chlorine with Simple Alkanes†

2010 ◽  
Vol 114 (9) ◽  
pp. 3038-3044 ◽  
Author(s):  
Kevin M. Hickson ◽  
Astrid Bergeat ◽  
Michel Costes
Keyword(s):  
Low Temperature ◽  
Temperature Study ◽  
Atomic Chlorine

scholarly journals The role of atomic chlorine in glacial-interglacial changes in the carbon-13 content of atmospheric methane

2011 ◽  
Vol 38 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
J. G. Levine ◽  
E. W. Wolff ◽  
A. E. Jones ◽  
L. C. Sime
Keyword(s):  
Atmospheric Methane ◽  
Atomic Chlorine

The Observation of Transitions Between Rydberg States of Atomic Chlorine by Laser Magnetic Resonance at 6.7 μm

1987 ◽  
Vol 35 (2) ◽  
pp. 146-152
Author(s):  
J M Brown ◽  
E R Comben ◽  
W Bohle ◽  
D Zeitz ◽  
W Urban
Keyword(s):  
Magnetic Resonance ◽  
Rydberg States ◽  
Laser Magnetic Resonance ◽  
Atomic Chlorine
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