Results 51 to 60 of about 9,696 (146)

Enhanced Citric Acid Production through Aspergillus niger: Insights from Fermentation Studies Using Sugarcane Molasses

open access: yesLife
The production of citric acid, a vital agricultural commodity utilized across various industries such as food, beverages, pharmaceuticals, agriculture, detergents, and cosmetics, predominantly relies on microbial fermentation, with Aspergillus niger ...
Samina Khurshid   +7 more
doaj   +1 more source

THORIUM AMMONIUM OXALATE. [PDF]

open access: yesJournal of the American Chemical Society, 1914
C. James, C. F. Whittemore, H. C. Holden
openaire   +1 more source

Release of phosphorus, aluminium and iron in fractionation of inorganic soil phosphorus

open access: yesAgricultural and Food Science, 1987
Release of phosphorus, aluminium and iron by a modified Chang and Jackson procedure was studied in five mineral soils. Quantities of aluminium and iron released during the procedure and extracted by acid ammonium oxalate were compared. The extractability
Raina Niskanen
doaj  

Mechanochemical conversion of domestic celestite mineral to SrC2O4 in the ammonium oxalate media

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
The mainraw material used in the production of Sr metal and its compounds is SrSO4(celestite) mineral and Turkey has valuable Sr mineral deposits. One of theimportant steps in the production of Sr compounds is the production ofstrontium oxalate compound ...
Mert Zorağa
doaj   +1 more source

New Work on Tin Plating from Ammonium Stannous Oxalate

open access: yesTransactions of The Electrochemical Society, 1942
It was found that glue, after hydrolysis by boiling a water solution of same, was as good an addition agent as peptone in the ammonium stannous oxalate bath. The deterioration of the bath was found to be due to oxidation of stannous to stannic ions. The bath can be regenerated by adding some spongy or finely divided metallic tin and boiling.
Frank C. Mathers, Paul H. Johnson
openaire   +1 more source

The Determination of Available Molybdenum in Soil by Rapid Catalytic Polarography

open access: yesYankuang ceshi, 2014
Available molybdenum in soil is an important proxy of ecological geochemistry evaluation. The classic method to determine available molybdenum in soil is catalytic polarography, which uses oxalic acid-ammonium oxalate (Tamm solution) as an extracting ...
CHEN Zhi-hui   +5 more
doaj   +2 more sources

Dependence of the phosphate sorption capacity on the aluminium and iron in Finnish soils

open access: yesAgricultural and Food Science, 1963
An attempt was made to study to what extent the capacity of the more or less acid soils in Finland to sorb phosphate may be explained on the basis of their content of aluminium and iron.
Armi Kaila
doaj  

GENDER AND AGE DISTRIBUTION AND CHEMICAL COMPOSITION OF RENAL STONES

open access: yesGomal Journal of Medical Sciences, 2014
Background: Renal stones are commonest urological disease worldwide. The objective of this study was to analyze the chemical composition of renal stones in relation to gender and age in District Dera Ismail Khan and its adjacent areas, Pakistan ...
Ghazi Khan   +3 more
doaj  

Development of a Method for the Synthesis of Ammoniacal Niobium Oxalate Trihydrate for Use as a Precursor in Chemical Reactions

open access: yesMaterials Research
In this project, a method was developed to synthesize ammoniacal niobium oxalate (NH4)(NbO(C2O4)(H2O)ᵧ)·XH2O, aimed at its application in the preparation of niobium-incorporated materials. This transition metal exhibits excellent properties and is widely
Vitor Manoel Silva Fernandes de Souza   +6 more
doaj   +1 more source

Efect of Hydroalcoholic Extract of Hypericum Perforatum L. Leaves on Ethylene Glycol-Induced Kidney Calculi in Rats

open access: yesUrology Journal, 2012
PURPOSE: To investigate the effects of the hydroalcoholic extract of Hypericum perforatum (H. perforatum) leaves on the kidney calculi in rats. MATERIALS AND METHODS: Fifty-two Wistar male rats were randomly divided into 4 groups: Groups 2, 3, and 4 ...
Mohsen Khalili   +2 more
doaj  

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