نتایج جستجو برای: inorganic acid

تعداد نتایج: 805727  

Journal: :journal of sciences, islamic republic of iran 2013
farnaz jahanbin mohammad khodadadi-moghaddam shahab bohlooli

formation of non bonded organic layer around inorganic particles like iron sulfide and zeolites, was hypothesized as starting point for one of the possible mechanisms of the origin of life on earth. in this study, the general circumstances needed for creation of such organic layer was investigated. an aliphatic hydrocarbon (hexane), an aromatic hydrocarbon (toluene), an alcohol (n-octanol) and ...

2018
Rui Tian Jinpan Zhong Chao Lu Xue Duan

There is a long-standing challenge to realize in situ visualization of incorporated inorganic materials in organic–inorganic composites in a post-labeling manner, owing to the lack of specific fluorescent organic dye molecules for targeting inorganic materials. Herein, we observe that the specific covalent B–O binding between the hydroxyl groups of inorganic materials and commercially available...

2003
R. C. COLLISON

In the synthesis of organic phosphorus compounds by the plant and in their storage in the seed as reserve food the inorganic phosphates play an important part. The phosphorus used in this synthetic process is taken into the plant in inorganic form and used in the building up of complex organic phosphorus compounds such as lecithins, phosphoand nucleo-prot,eins and salts of phytic acid. It is be...

2002
G. R. Howe

Strong inorganic acid mists containing sulfuric acid are known to be human carcinogens based on sufficient evidence of carcinogenicity from studies in humans that indicate a causal relationship between exposure to strong inorganic acid mists containing sulfuric acid and human cancer. Occupational exposures to strong inorganic acid mists containing sulfuric acid are specifically associated with ...

2014
Huck Ywih Ch'ng Osumanu Haruna Ahmed Nik Muhamad Ab. Majid

In acid soils, soluble inorganic phosphorus is fixed by aluminium and iron. To overcome this problem, acid soils are limed to fix aluminium and iron but this practice is not economical. The practice is also not environmentally friendly. This study was conducted to improve phosphorus availability using organic amendments (biochar and compost produced from chicken litter and pineapple leaves, res...

2009
GRAHAM M. GIBB

Inorganic phosphate must be transported continuously into the mitochondrial matrix to maintain the steady-state oxidative phosphorylation of ADP. Specific uptake of this anion occurs via at least two distinct transport systems: an electroneutral inorganic phosphate-dicarboxylic acid exchange carrier and an inorganic phosphate-hydroxyl antiporter which catalyses the influx of about 90% of the mi...

Journal: :Environmental monitoring and assessment 2010
Stefan Löfgren Neil Cory Therese Zetterberg

The negative effects of elevated concentrations of inorganic aluminium on aquatic organisms are well documented. Acid deposition is often cited as a main driver behind the mobilisation and speciation of aluminium in soils and surface waters. In the study, we tested the hypothesis that sulphur deposition is the main driver for elevated concentrations of inorganic aluminium in 114 base poor, bore...

2010
M. Frosch

We have investigated CCN properties of internally mixed particles composed of one organic acid (oxalic acid dihydrate, succinic acid, adipic acid, citric acid, cis-pinonic acid, or Nordic reference fulvic acid) and one inorganic salt (sodium chloride or ammonium sulphate). Surface tension and water activity of aqueous model solutions with concentrations relevant for CCN activation were measured...

2003
M. Walsh D. Sholly D. Kelly M. Cobb S. Trapp R. Hinson B. Hill A. Sutton S. Radcliffe B. Harmon J. Smith B. Richert

One hundred and eighty pigs were weaned at an average of 18.2 days of age and were assigned to one of five dietary treatments. Pigs were allotted based on genetics, sex and initial body weight. Treatments were as follows: A) Basal diet, no antibiotics (negative control); B) Diet A plus Carbadox at 45.4g/ton (50 ppm; positive control); C) .4% Organic acid blend, added to diet A by substituting f...

2010
VASILE MUNTEAN

The inhibitory/repressive effect of the final reaction product (inorganic o-phosphate) and the inducing effect of a substrate (β-glycerophosphate) on the phosphatase activity and synthesis in a salt lake sediment were studied. The determinations have been differentially carried out, for acid, neutral and alkaline phosphatase, and in reaction mixtures without buffering. The acid phosphatase acti...

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