scholarly journals Emission evaluation of carbon disulfide from rubber surfaces in small environmental chambers

2021 ◽  
Vol 675 (1) ◽  
pp. 012003
Author(s):  
Ligang Luo ◽  
Ronghui Yuan ◽  
Furong Liu ◽  
Huazhen Yao ◽  
Xiaoying Yan ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Environmental Chambers

Side-entry differentially pumped environmental chamber for the AE1-EM7 HVEM

1986 ◽  
Vol 44 ◽  
pp. 888-889
Author(s):  
D. Barnard ◽  
D. Rexford ◽  
W.F. Tivol ◽  
J.N. Turner
Keyword(s):  
Electron Microscope ◽  
High Voltage ◽  
Environmental Chamber ◽  
Normal Operating ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron ◽  
Environmental Chambers

A side-entry differentially pumped environmental chamber (SEDPEC) has been designed and constructed for the AEI-EM7 high-voltage electron microscope (HVEM). The SEDPEC has been tested in the same way as previous chambers for the HVEM. In contrast to the lengthy procedures necessary to install previous environmental chambers in the HVEM, the SEDPEC can be installed in about one half hour. Thus a user can install the SEDPEC, use it for a day and return the HVEM to normal operating status without causing delays for other HVEM users. This is particularly important for our facility, which is supported as a national biotechnology resource by the NIH.

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.

Reactions of Carbon Disulfide and Carbon Dioxide Adducts (eta5-C5H5)(CO) 2Fe-CX2 with Organoiron Electrophiles

1988 ◽  
Author(s):  
Mary E. Giuseppetti ◽  
Bruce E. Landrum ◽  
John L. Shibley ◽  
Alan R. Cutler
Keyword(s):  
Carbon Dioxide ◽  
Carbon Disulfide

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

Lithium-Promoted Cycloaddition of Indole-2,3-dienolates and Carbon Disulfide as a One-Pot Route to Thiopyrano[4,3-b]indole-3(5H)-thiones

2021 ◽  
Author(s):  
Konstantin F. Suzdalev ◽  
Julia V. Vyalyh ◽  
Valery V. Tkachev ◽  
Ekaterina A. Lysenko ◽  
Oleg N. Burov ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
One Pot

scholarly journals Application of Commercially Available Anhydrous Potassium Fluoride for a Convenient Synthesis of Ketene Dithioacetals

1999 ◽  
Vol 23 (8) ◽  
pp. 492-493
Author(s):  
Sabir H. Mashraqui ◽  
Harini Hariharasubrahmanian
Keyword(s):  
Carbon Disulfide ◽  
Alkylating Agent ◽  
Potassium Fluoride ◽  
Solid Support ◽  
Ambient Conditions ◽  
Ketene Dithioacetals ◽  
Convenient Synthesis ◽  
Active Methylene Compounds ◽  
Active Methylene

Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.

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