Some physical properties of nickel carbonyl

1903 ◽  
Vol 71 (467-476) ◽  
pp. 427-439 ◽  
Keyword(s):  
Thermal Expansion ◽  
Specific Gravity ◽  
Physical Properties ◽  
Boiling Point ◽  
Nickel Carbonyl ◽  
Molecular Refraction ◽  
Vapour Density ◽  
The Subject

The properties of nickel carbonyl have until recently been the subject of but few investigations. Dr. Mond and his collaborators in the discovery of this remarkable substance determined some of its physical properties, including its boiling point, specific gravity, and vapour density. Subsequently Dr. Mond, in association with Professor Nasini, made observations on its molecular refraction and thermal expansion.

EFFECTS OF POSITION ISOMERISM ON THE PHYSICAL PROPERTIES OF GLYCOLS

1950 ◽  
Vol 28b (10) ◽  
pp. 608-622 ◽  
Keyword(s):  
Aqueous Solution ◽  
Thermal Expansion ◽  
Specific Gravity ◽  
Physical Properties ◽  
Boiling Point ◽  
Pure State ◽  
Freezing Point ◽  
Molar Refraction ◽  
Weight Basis ◽  
Point Data

Specific gravity, refractivity, viscosity, boiling point, and freezing point data are provided for 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,2-pentanediol and 1,5-pentanediol, in the pure state and in aqueous solution. The observed molar refraction values agreed closely with Mr values calculated according to Swientoslawski. Lengthening the distance between the hydroxyl substituents increases the specific gravity, refractivity, boiling point, and viscosity, and reduces thermal expansion and isothermal contraction on mixing with water. The order of decreasing effectiveness as freezing point depressants on a weight basis is 1,2-propanediol, leva- 2,3-butanediol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1,2-butanediol, 1,5-pentanediol, and 1,2-pentanediol. Aqueous solutions of all of these glycols exhibit pronounced specific gravity maxima. The glycol concentration at which maximum specific gravity is attained increases with increasing distance between the hydroxyl substituents.

5. On the Chemical and Physical Principles in Connection with the Specific Gravity of Liquid and Solid Substances

1866 ◽  
Vol 5 ◽  
pp. 226-230
Author(s):  
Otto Richter
Keyword(s):  
Specific Gravity ◽  
Physical Properties ◽  
New Order ◽  
Circular Polarisation ◽  
Chemical Theory ◽  
The Subject ◽  
Physical Principles

The subject of this paper, is of a nature to find favour with all those chemists who are disposed to recognise in the fast accumulating evidence of a new and remarkable order of chemical phenomena rich and valuable materials for the construction of a sounder and more comprehensive chemical theory. This new order of phenomena appears to me, nevertheless, but imperfectly appreciated and understood, even on the part of our most distinguished experimentalists. Thus, for instance, Monsieur Pasteur, the illustrious French philosopher, and with him a host of other eminent thinkers, is of opinion, that matter is indebted for its chemical and physical properties mainly and exclusively to the peculiar manner in which the atoms are grouped together. In alluding to the probable cause of circular polarisation, Monsieur Pasteur considers, that this singular property ought to be referred to the unsymmetrical disposition of the constituents, and that the restoration of the chemical symmetry must at the same time obliterate every trace of circularly polarising power.

2. On Zinc-Methyl

1862 ◽  
Vol 4 ◽  
pp. 315-317
Author(s):  
J. A. Wanklyn
Keyword(s):  
High Temperature ◽  
Specific Gravity ◽  
Boiling Point ◽  
The Body ◽  
Small Glass ◽  
Vapour Density ◽  
Glass Tubes

Considerable difficulties attend the preparation of zinc-methyl. Frankland, who discovered the body, obtained it by heating pure iodide of methyl and zinc enclosed in small glass tubes. Owing to the high temperature at which reaction takes place, much gas is formed; hence the operation must be confined to very small quantities of materials.No determination of the boiling-point, specific gravity, nor yet of the vapour density of zinc-methyl, was made by its discoverer; from which fact may be inferred how small was the product available for investigation.

scholarly journals XI. On evaporation and dissociation.―Part V. A study of the thermal properties of methyl-alcohol

1887 ◽  
Vol 178 ◽  
pp. 313-334 ◽  
Keyword(s):  
Acetic Acid ◽  
Thermal Properties ◽  
Critical Temperature ◽  
Methyl Alcohol ◽  
Boiling Point ◽  
Low Temperatures ◽  
Barium Oxide ◽  
Vapour Density ◽  
The Subject ◽  
Temperature And Pressure

In previous memoirs we have given the results of investigations of the thermal properties of ethyl-alcohol, acetic acid, and ethyl oxide (ether). The subject of the present paper is the vapour-pressures, vapour-densities, and expansion of methylalcohol; and from these results the heats of vaporisation have been deduced. The range of temperature is from —16° to the critical temperature 240°; and the range of pressure from 11 millims. to 60,000 millims. Preparation of pure methyl-alcohol. ―A finely crystallised sample of methyl oxalate was distilled with ammonia; the distillate was rectified, and when partially freed from water was distilled with quicklime. The distillate was again distilled from barium oxide, and then allowed to stand for some weeks over anhydrous copper sulphate; but the boiling-point was found to be by no means constant. It was then distilled six times over small quantities of sodium; and the rise of temperature during the last distillation was less than 0.1°. The boiling-point was 64.85° at 761.9 millims. A series of determinations of vapour-pressure at low temperatures was then made, and it was decided, before employing the alcohol for determinations of vapour-density, to re-distil it. It boiled at 64.95°, under the same pressure, 761.9 millims. Preliminary experiments were then carried out, with a view to determining the critical temperature and pressure; but the volume-tube burst, and the experiments were delayed until a new volume-tube had been calibrated. As the boiling-point of the alcohol was not absolutely constant, it was repeatedly fractionated, and the greater part was obtained, boiling at 64.7°, under 760 millims. pressure. The rise of temperature did not exceed 0.05° during the complete distillation.

scholarly journals Characterization of Pure and Undefined Petroleum Fractions of Messla and Sarir Crude Oils of Libya Using Correlation Models

2020 ◽  
pp. 194-211
Author(s):  
Ibrahim M. Abou El Lei ◽  
Nuri M. Triki ◽  
Khaled M. Mezughi
Keyword(s):  
Molecular Weight ◽  
Specific Gravity ◽  
Physical Properties ◽  
Boiling Point ◽  
Crude Oils ◽  
Normal Boiling Point ◽  
Petroleum Fractions ◽  
Correlation Models ◽  
Significant Difference ◽  
Input Parameters

<p>Knowing the physical properties of hydrocarbons and petroleum fractions is essential for designing most crude oil production and refining processes. Several correlations, called group contribution methods, have been proposed in the literature to assess these parameters and have been used extensively. The majority frequent correlations reported in the literature, where it is generally accepted in the petroleum industry, are used to describe unspecified fractions of oil. The only input parameters required are specific gravity and normal boiling point or molecular weight. Calculated properties include: normal boiling point (T<sub>b</sub>), Molecular weight (Mw), critical properties for instance critical pressure (P<sub>c</sub>), critical temperature (T<sub>c</sub>), critical volume (V<sub>c</sub>) and acentric factor (ω), as well as other parameters including Watson factor (K), and compressibility factor (Z<sub>c</sub>). In this approach, x samples of petroleum fractions of Messla and Sarir crude oils of Arabian Gulf Oil Company, Libya have been collected. A quantity of characterization technique of untainted and unknown petroleum fractions have been presented to foresee the physical properties of these petroleum fractions. Correlations for characterizing non-specific petroleum fractions suppose precise seriousness and boiling point as input parameters. These correlations are Twu Correlations, Cavett Correlations, Kesler-Lee Correlations and Riazi-Daubert Correlations. The physical properties of the compounds in terms of specific gravity and (T<sub>b</sub>) were shown on the algorithm and the correlation models for the auxiliary acids were corrected in this study. The considerations addressed revealed that there is no significant difference between the correlation models and the results obtained and it appears to be very close to the similar published data of the cited authors.</p>

KARAKTERISASI SIFAT FISIKA DAN KIMIA CUKA KAYU DARI TANDAN KOSONG KELAPA SAWIT

2014 ◽  
Vol 6 (1) ◽  
pp. 35 ◽  
Author(s):  
Rizka Karima
Keyword(s):  
Specific Gravity ◽  
Physical Properties ◽  
Solid Waste ◽  
Ph Value ◽  
Total Yield ◽  
Chemical Properties ◽  
Phenol Content ◽  
Empty Fruit Bunches ◽  
Wood Vinegar ◽  
And Chemical Properties

There’s so many pal solid waste or palm empty fruit bunches, but the utilization is not maximized, this research its to optimized utilization of palm solid waste to be wood vinegar and want to know the composition physical properties and chemical properties of wood vinegar from palm empty fruit bunches. Total yield of wood vinegar from palm empty fruit bunches its 15,94 % and total yield of charcoal its 64,58 %. GCMS result showing chemical properties from wood vinegar of burning < 100oC its obtained 19 compound and burning >100 oC its obtained 6 compound. The result physichal properties testing from crued wood vinegar its obtained specific gravity 1,0005 and 1,0010, pH value are 3,233 and 3,186, TAT content are 9,36 % and 11,12 %, phenol content its 0,44 %. The result physical properties testing from wood vinegar which has decolorizatin by activated carbon its obtained specific gravity are 0,9987 and 0,999, pH value are 3,036 and 3,012, TAT content are 8,29 % and 9,27 % and phenol content its 0,01 %.Keywords: palm bunches, wood vinegar, liquid smoke

NILO ALLOY 36

Alloy Digest ◽  
1987 ◽  
Vol 36 (8) ◽  
Keyword(s):  
Thermal Expansion ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Constant Coefficient ◽  
Coefficient Of Thermal Expansion ◽  
Heat Treating ◽  
Temperature Performance ◽  
Iron Nickel

Abstract NILO alloy 36 is a binary iron-nickel alloy having a very low and essentially constant coefficient of thermal expansion at atmospheric temperatures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-79. Producer or source: Inco Alloys International Inc..

UNISPAN LR35

Alloy Digest ◽  
1971 ◽  
Vol 20 (1) ◽  
Keyword(s):  
Thermal Expansion ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Coefficient Of Thermal Expansion ◽  
Heat Treating ◽  
Temperature Performance ◽  
Operational Level

Abstract UNISPAN LR35 offers the lowest coefficient of thermal expansion of any alloy now available. It is a low residual modification of UNISPAN 36 for fully achieving the demanding operational level of precision equipment. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: Fe-46. Producer or source: Cyclops Corporation.

DELTALLOY 4032

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
Coefficient Of Thermal Expansion ◽  
Single Point ◽  
High Strength ◽  
Corrosion And Wear

Abstract Deltalloy 4032 has good machinability and drilling characteristics when using single-point or multispindle screw machines and an excellent surface finish using polycrystalline or carbide tooling. The alloy demonstrates superior wear resistance and may eliminate the need for hard coat anodizing. Deltalloy 4032 is characterized by high strength and a low coefficient of thermal expansion. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion and wear resistance as well as machining and surface treatment. Filing Code: AL-347. Producer or source: ALCOA Wire, Rod & Bar Division.

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