Photodegradation of Aqueous Sodium Carbonate by KNiF3 Nanoparticles

2013 ◽  
Vol 341-342 ◽  
pp. 59-63
Author(s):  
Qian Nan Li ◽  
Qiu Hua Yang ◽  
Hai Yun Shen
Keyword(s):  
Photocatalytic Activity ◽  
Formic Acid ◽  
Conduction Band ◽  
Sodium Carbonate ◽  
Methyl Alcohol ◽  
Thermal Method ◽  
Aqueous Sodium ◽  
Aqueous Sodium Carbonate ◽  
Nash Reagent

The nanoKNiF3 with its particles size of 50-70 nm was prepared by solvent-thermal method and characterized by means of XRD, TEM and IR technologies. Photocatalysed reduction of aqueous Na2CO3 was carried out by using nanoKNiF3 powders. Formic acid, formaldehyde and methyl alcohol were identified as photoproducts, and were measured in spectrophotometry using Nash reagent. It shows that nanoKNiF3 has superior photocatalytic activity. Irradiation leads to the production of electrons in the conduction band of the KNiF3 nanoparticles. It is likely that the photoproduced electrons reduce CO32- initially to HCOO-, and then to HCHO and CH3OH.

Fluorometric Determination of Chlortetracycline in Low Level Mixed Feeds

1964 ◽  
Vol 47 (6) ◽  
pp. 1157-1161
Author(s):  
Stanley E Katz ◽  
Joseph Spock
Keyword(s):  
Ion Exchange ◽  
Sodium Carbonate ◽  
Fluorometric Determination ◽  
Aqueous Sodium ◽  
Exchange Column ◽  
Aqueous Sodium Carbonate ◽  
Ion Exchange Column ◽  
Low Levels ◽  
Mixed Feeds

Abstract The fluorometric determination of low levels of chlortetracycline in mixed feeds is based upon the separation of the chlortetracycline on a Decalso ion exchange column after extraction from the feed. The chlortetracycline is eluted from the resin after conversion to isochlortetracycline by hot aqueous sodium carbonate. The isochlortetracycline is measured fluorometrically. Results agree with microbial assays.

Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45�C

1983 ◽  
Vol 12 (4) ◽  
pp. 233-254 ◽  
Author(s):  
J. Peter Hershey ◽  
Sara Sotolongo ◽  
Frank J. Millero
Keyword(s):  
Sodium Carbonate ◽  
Aqueous Sodium ◽  
Aqueous Sodium Carbonate

Aza-Michael reaction promoted by aqueous sodium carbonate solution

2013 ◽  
Vol 54 (21) ◽  
pp. 2669-2673 ◽  
Author(s):  
Xiao-Ji Tang ◽  
Zhao-Lei Yan ◽  
Wen-Liang Chen ◽  
Ya-Ru Gao ◽  
Shuai Mao ◽  
...  
Keyword(s):  
Sodium Carbonate ◽  
Sodium Carbonate Solution ◽  
Michael Reaction ◽  
Carbonate Solution ◽  
Aqueous Sodium ◽  
Aqueous Sodium Carbonate

The Properties of β-Glucans from Different Fractions of Hull-Less Barley

2011 ◽  
Vol 365 ◽  
pp. 338-341 ◽  
Author(s):  
Xue Ling Zheng ◽  
Li Min Li ◽  
Qi Wang
Keyword(s):  
Sodium Carbonate ◽  
High Purity ◽  
Barley Cultivar ◽  
Aqueous Sodium ◽  
Aqueous Sodium Carbonate

Crude β-glucans were prepared from hull-less barley roller-milled fractions by aqueous sodium carbonate ( pH10). β-Glucan preparations from hull-less barley roller-milled fractions had high purity (90.88-95.04%). The Mw of β-glucan preparations from roller-milled fractions was ranging from 117,600 to 852,400 g/mol, For the same hull-less barley cultivar, β-glucan from flour had higher Mw than shorts and bran, and β-glucan preparations from bran had the lowest Mw.

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