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Articles 91 - 112 of 112
Full-Text Articles in Chemistry
Preparation Of O-Fluorobenzoic Acid. An Elementary Organic Laboratory Experiment, Frank L. Setliff
Preparation Of O-Fluorobenzoic Acid. An Elementary Organic Laboratory Experiment, Frank L. Setliff
Journal of the Arkansas Academy of Science
An experiment designed for organic chemistry students at the sophomore level is presented. The experiment, which involves no special equipment and which employs only inexpensive reagents, demonstrates the conversion of anthranilic acid to o-fluorobenzoic acid via the modified Schiemann Reaction.
Apparatus For Dielectric Constant Measurements And Measurements For Water-Methanol Mixtures, James O. Wear
Apparatus For Dielectric Constant Measurements And Measurements For Water-Methanol Mixtures, James O. Wear
Journal of the Arkansas Academy of Science
A system for measuring dielectric constants has been constructed using a Sargent Oscillometer and an air bath for temperature control. The design and construction of the air bath as well as the temperature control achieved with it are described. The overall performance of the system including a computer program for forming the calculations is described. The system is one that requires calibration using two or more standard solvents and is good for both conducting and non-conducting liquids. Data are presented for water-methanol mixtures at 25 degrees with several points near pure methanol and also near pure water
On The Preparation And Properties Of Some 1,1-Dipheneyl-Syn,Trans-Truxane Derivatives, Frank L. Setliff
On The Preparation And Properties Of Some 1,1-Dipheneyl-Syn,Trans-Truxane Derivatives, Frank L. Setliff
Journal of the Arkansas Academy of Science
No abstract provided.
How Important Is Sulphur For Pastures?, R N. Glencross, W. J. Cox
How Important Is Sulphur For Pastures?, R N. Glencross, W. J. Cox
Journal of the Department of Agriculture, Western Australia, Series 4
With the introduction of low sulphur compound and concentrated fertilisers, a new look is required at the sulphur status of West Australian soils, and the sulphur requirement of pasture.
In this article the functions of sulphur, deficiency symptoms and potential problem soils are described.
Current recommendations and plans for future research work are outlined.
N-P Compound Fertilisers, M G. Mason, W. J. Cox, R. N. Glencross
N-P Compound Fertilisers, M G. Mason, W. J. Cox, R. N. Glencross
Journal of the Department of Agriculture, Western Australia, Series 4
FARMERS were able to buy the two compound fertilisers N-P Compound Fertiliser 28:14 and N-P Compound Fertilser 24:24 in the 1967 season.
Heterocyclic Aromatic Fluorides By A Modified Schiemann Method (1), Frank L. Setliff
Heterocyclic Aromatic Fluorides By A Modified Schiemann Method (1), Frank L. Setliff
Journal of the Arkansas Academy of Science
No abstract provided.
The Phosphorus Fertilisers : How They Compare, Walter Jacob Cox
The Phosphorus Fertilisers : How They Compare, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
ALTHOUGH 'double' or 'concentrated' superphosphate was first commercially manufactured in 1872 it was not until the 1950's that it became a major commercial fertiliser. In 1965 it accounted for about 15 per cent, of the world production of phosphatic fertilisers.
The Effects Of Shearing Time And Stocking Rate On Wool Production, R J. Lightfoot
The Effects Of Shearing Time And Stocking Rate On Wool Production, R J. Lightfoot
Journal of the Department of Agriculture, Western Australia, Series 4
THE results of the first experiment comparing "autumn" versus "spring" shearing over a two-year period were published in 1960.
In this experiment the autumn-shorn ewes cut heavier greasy fleeces (even though they also reared considerably more lambs) with less tender wool, resulting in a higher average return per head from this group.
The autumn-shorn wool carried more seed, was less attractive and contained relatively more pieces than did the spring-shorn wool.
Put Garden Rubbish To Work In A Compost Heap, W Dawson
Put Garden Rubbish To Work In A Compost Heap, W Dawson
Journal of the Department of Agriculture, Western Australia, Series 4
THERE'S a surprising amount of mumbo jumbo written about the simple compost heap. By the time you've waded through all the instructions, you feel as if you ought to have prerequisites of a doctorate in soil chemistry or an unbroken ancestry of at least three generations of professional English gardeners.
Control Of Copper, Zinc And Manganese Deficiencies In Fruit Trees, N J. Halse
Control Of Copper, Zinc And Manganese Deficiencies In Fruit Trees, N J. Halse
Journal of the Department of Agriculture, Western Australia, Series 4
THE three elements copper, zinc and manganese are plant nutrients of the type often referred to as minor or trace elements.
Although essential elements for plant growth, they are required in comparatively small quantities.
A Review Of The 1961-1962 Silage Competition, H G. Elliott
A Review Of The 1961-1962 Silage Competition, H G. Elliott
Journal of the Department of Agriculture, Western Australia, Series 4
FOR the past five years the Australian Dairy Produce Board Pasture Improvement Committee (W.A.) has sponsored a silage competition in the dairying areas.
Judging is done by the officers of the Dairy Division of the Department of Agriculture and prize money totalling £175 is awarded.
Minor Elements Can Be Overdone, L T. Jones
Minor Elements Can Be Overdone, L T. Jones
Journal of the Department of Agriculture, Western Australia, Series 4
T H E term "minor elements" which is now commonly used and well understood by farmers and gardeners, refers to the five essential plant foods—copper, zinc, manganese, molybdenum and boron.
These five essential plant foods are needed by all plants in minute quantities and it is relatively easy to use them in excess of actual requirements or even in toxic amounts.
In practice this is not usually a problem with cereals and pastures. The important exception is when zinc alone is added to a cereal crop low in copper and the extra zinc accentuates the copper deficiency, and poorer yields …
Some Optical Properties Of Vapor-Deposited Films Of Arsenic, Antimony, And Bismuth, Zaboj V. Harvalik
Some Optical Properties Of Vapor-Deposited Films Of Arsenic, Antimony, And Bismuth, Zaboj V. Harvalik
Journal of the Arkansas Academy of Science
No abstract provided.
Possibility Of Weak Alpha Branching In Radium D, B. R. Miccoli, R. R. Edwards, B. L. Robinson, R. W. Fink
Possibility Of Weak Alpha Branching In Radium D, B. R. Miccoli, R. R. Edwards, B. L. Robinson, R. W. Fink
Journal of the Arkansas Academy of Science
No abstract provided.
Phase Equilibrium In The 1-Butene-Water System And Correlation Of Hydrocarbon-Water Solubility Data, T. W. Leland
Phase Equilibrium In The 1-Butene-Water System And Correlation Of Hydrocarbon-Water Solubility Data, T. W. Leland
Journal of the Arkansas Academy of Science
No abstract provided.
Ceramic Uses Of Arkansas Nepheline Syenite, Harry J. Reynolds
Ceramic Uses Of Arkansas Nepheline Syenite, Harry J. Reynolds
Journal of the Arkansas Academy of Science
No abstract provided.
Diffusion Through A Membrane, Marvin E. Wyman
Diffusion Through A Membrane, Marvin E. Wyman
Journal of the Minnesota Academy of Science
No abstract provided.
Preliminary Report Of Occurrence And Properties Of Nepheline Syenite In Pulaski County, Arkansas, Harold B. Foxhall, William E. Crockett
Preliminary Report Of Occurrence And Properties Of Nepheline Syenite In Pulaski County, Arkansas, Harold B. Foxhall, William E. Crockett
Journal of the Arkansas Academy of Science
No abstract provided.
Note On The Occurrence Of D-Manitol In Native Persimmon, Irving T. Beach
Note On The Occurrence Of D-Manitol In Native Persimmon, Irving T. Beach
Journal of the Arkansas Academy of Science
No abstract provided.
Calycanthne. Distillation With Zinc Dust, Irving T. Beach
Calycanthne. Distillation With Zinc Dust, Irving T. Beach
Journal of the Arkansas Academy of Science
No abstract provided.
Vapor Pressures. I. Para-Dichlorobenzene; Glycol Diacetate., L. B. Roberts, James D. Wolfe, James Hawthorne
Vapor Pressures. I. Para-Dichlorobenzene; Glycol Diacetate., L. B. Roberts, James D. Wolfe, James Hawthorne
Journal of the Arkansas Academy of Science
No abstract provided.
Crystals Of An Insoluble Carbonate Of Copper Grown Under A Soda Solution, L. B. Roberts, Edwin Roberts
Crystals Of An Insoluble Carbonate Of Copper Grown Under A Soda Solution, L. B. Roberts, Edwin Roberts
Journal of the Arkansas Academy of Science
No abstract provided.