The Ammonia-Ammonium Carbonate System for the Concentration of Nitrogen-15

1956 ◽  
Vol 60 (1) ◽  
pp. 48-51 ◽  
Author(s):  
G. M. Begun ◽  
A. A. Palko ◽  
L. L. Brown
Keyword(s):  
Ammonium Carbonate ◽  
Carbonate System

Ionic pumping in a cadmium, ortho phosphoric acid-phosphate tributyl-ammonium carbonate system: Chemical study of compartments

Desalination ◽  
2007 ◽  
Vol 206 (1-3) ◽  
pp. 554-559 ◽  
Author(s):  
F. Hassaine-Sadi ◽  
H. Bouchabou
Keyword(s):  
Phosphoric Acid ◽  
Ammonium Carbonate ◽  
Chemical Study ◽  
Acid Phosphate ◽  
Carbonate System

Visualizing Preferential Flow Paths using Ammonium Carbonate and a pH Indicator

2002 ◽  
Vol 66 (2) ◽  
pp. 347 ◽  
Author(s):  
Zhi Wang ◽  
Jianhang Lu ◽  
Laosheng Wu ◽  
Thomas Harter ◽  
William A. Jury
Keyword(s):  
Preferential Flow ◽  
Ammonium Carbonate ◽  
Ph Indicator ◽  
Flow Paths ◽  
Preferential Flow Paths

scholarly journals The mineralogic and isotopic fingerprint of equatorial carbonates: Kepulauan Seribu, Indonesia

2021 ◽  
Author(s):  
Dwi Amanda Utami ◽  
Lars Reuning ◽  
Maximillian Hallenberger ◽  
Sri Yudawati Cahyarini
Keyword(s):  
River Runoff ◽  
Patch Reef ◽  
High Water ◽  
Sem Analysis ◽  
Shallow Waters ◽  
Carbonate System ◽  
Riverine Water ◽  
High Turbidity ◽  
Java Sea ◽  
River Catchments

AbstractKepulauan Seribu is an isolated patch reef complex situated in the Java Sea (Indonesia) and is a typical example for a humid, equatorial carbonate system. We investigate the mineralogical and isotopic fingerprint of Panggang, one of the reef platforms of Kepulauan Seribu, to evaluate differences to other carbonate systems, using isotope in combination with XRD and SEM analysis. A characteristic property of shallow water (< 20 m) sediments from Kepulauan Seribu is their increased LMC content (~ 10%) derived from some genera of rotaliid foraminifers and bivalves. The relative abundance of these faunal elements in shallow waters might be related to at least temporary turbid conditions caused by sediment-laden river runoff. This influence is also evidenced by the presence of low amounts of siliciclastic minerals below the regional wave base. Kepulauan Seribu carbonates are characterized by very low δ13C and δ18O values. This is related to the isotopically depleted riverine input. The δ13CDIC in riverine water is reduced by the contribution of 12C from riverside mangroves. Deep atmospheric convection and intensive rains contribute 18O-depleted freshwater in the river catchments, finally reducing salinity in the Java Sea. The depleted δ13C signature in carbonates is further enhanced by the lack of green algae and inorganic carbonates and abundance of coral debris. Low δ18O values in carbonates are favored by the high water temperatures in the equatorial setting. Since equatorial carbonates in SE Asia, including the Java Sea, are typically influenced by high turbidity and/or river runoff, the observed distinctively low isotope values likely are characteristic for equatorial carbonate systems in the region.

Measurements of isothermal vapor–liquid equilibrium of binary methanol/dimethyl carbonate system under pressure

2005 ◽  
Vol 234 (1-2) ◽  
pp. 1-10 ◽  
Author(s):  
Shi Yunhai ◽  
Liu Honglai ◽  
Wang Kun ◽  
Xiao Wende ◽  
Hu Ying
Keyword(s):  
Dimethyl Carbonate ◽  
Liquid Equilibrium ◽  
Carbonate System ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid

scholarly journals Dramatic Variability of the Carbonate System at a Temperate Coastal Ocean Site (Beaufort, North Carolina, USA) Is Regulated by Physical and Biogeochemical Processes on Multiple Timescales

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e85117 ◽  
Author(s):  
Zackary I. Johnson ◽  
Benjamin J. Wheeler ◽  
Sara K. Blinebry ◽  
Christina M. Carlson ◽  
Christopher S. Ward ◽  
...  
Keyword(s):  
North Carolina ◽  
Coastal Ocean ◽  
Biogeochemical Processes ◽  
Carbonate System ◽  
Multiple Timescales

Study of ammonium uranyl carbonate re-extraction-crystallization process by ammonium carbonate

1992 ◽  
Vol 28 (2) ◽  
pp. 135-147 ◽  
Author(s):  
S. Chegrouche ◽  
A. Kebir
Keyword(s):  
Crystallization Process ◽  
Ammonium Carbonate ◽  
Uranyl Carbonate
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