Spectroscopic Investigation of Chalcogen Bonding: Halide–Carbon Disulfide Complexes

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Christian T. Haakansson ◽  
Timothy R. Corkish ◽  
Peter D. Watson ◽  
Hayden T. Robinson ◽  
Terrence Tsui ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Spectroscopic Investigation

scholarly journals Cover Feature: Spectroscopic Investigation of Chalcogen Bonding: Halide–Carbon Disulfide Complexes (ChemPhysChem 9/2021)

ChemPhysChem ◽  
2021 ◽  
Vol 22 (9) ◽  
pp. 806-806
Author(s):  
Christian T. Haakansson ◽  
Timothy R. Corkish ◽  
Peter D. Watson ◽  
Hayden T. Robinson ◽  
Terrence Tsui ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Spectroscopic Investigation

Some Results of the Spectroscopic Study of Four Close Binary Systems of Early Spectral Types

1965 ◽  
Vol 5 ◽  
pp. 120-130
Author(s):  
T. S. Galkina
Keyword(s):  
Spectroscopic Study ◽  
Spectral Type ◽  
Spectroscopic Investigation ◽  
Binary Systems ◽  
Quantitative Information ◽  
Close Binary ◽  
Physical Parameters ◽  
Absorption And Emission ◽  
Close Binary Systems ◽  
Quantitative Estimates

It is necessary to have quantitative estimates of the intensity of lines (both absorption and emission) to obtain the physical parameters of the atmosphere of components.Some years ago at the Crimean observatory we began the spectroscopic investigation of close binary systems of the early spectral type with components WR, Of, O, B to try and obtain more quantitative information from the study of the spectra of the components.

Improvement in the Fock test for determining the reactivity of dissolving pulp

TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 21-26 ◽  
Author(s):  
CHAO TIAN ◽  
LINQIANG ZHENG ◽  
QINGXIAN MIAO ◽  
CHRIS NASH ◽  
CHUNYU CAO ◽  
...  
Keyword(s):  
Moisture Content ◽  
Sodium Hydroxide ◽  
Constant Temperature ◽  
Carbon Disulfide ◽  
Testing Procedure ◽  
Dissolving Pulp ◽  
Water Bath ◽  
Testing Conditions ◽  
Pulp Sample ◽  
Fock Reactivity

The Fock test is widely used for assessing the reactivity of dissolving pulp. The objective of this study was to modify the method to improve the repeatability of the test. Various parameters that affect the repeatability of the Fock test were investigated. The results showed that Fock reactivity is dependent on testing conditions affecting the xanthation between cellulose and carbon disulfide, such as the moisture content of the pulp sample, sodium hydroxide (NaOH) concentration, xanthation temperature, carbon disulfide dosage, and xanthation time. The repeatability of the test was significantly improved using the following modified testing procedure: air dried sample in the constant temperature/humidity room, xanthation temperature of 66°F (19°C) in a water bath, xanthation time of 3 h, NaOH concentration of 9% (w/w), and 1.3 mL carbon disulfide.

SPECTROSCOPIC INVESTIGATION OF SOLID ROCKET SIGNATURES

1997 ◽  
Vol 4 (1-6) ◽  
pp. 927-933
Author(s):  
Wilhelm Eckl ◽  
W. Liehmann ◽  
Norbert Eisenreich ◽  
M. Weindel ◽  
L. Deimling
Keyword(s):  
Spectroscopic Investigation ◽  
Solid Rocket
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