Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Liquids clear viscous

Appearance Clear, viscous liquid Clear, viscous liquid... [Pg.264]

Using a standard vacuum distillation the solvent is distilled off. This shouldn t take too long. The first thing to come over after the solvent was the safrole, which with my vacuum (2mm) started at around 9CfC. The safrole will be a clear liquid, slightly viscous and will smell of liquorice. With the above measurements one can expect a yield of around 85g. No further cleaning up is necessary, and the safrole can be used as is for any further reactions. ... [Pg.237]

A quantity of solution obtained as described containing 0.1 mol of the chlorocarbonate was treated with 0.2 mol of anhydrous Isopropylamine and allowed to react at ordinary room temperature. The solution was cooled, extracted with dilute hydrochloric acid and the organic layer concentrated by evaporation of the solvent. The crude monocarbamate was purified by distilling at 86° to 88°C at about 0.01 mm. It was a clear, viscous liquid. [Pg.249]

In a tared Erlenmeyer flask surrounded by an ice-salt bath is placed 100 g. (1.78 moles) of acrolein (Org. Syn. 6,1) (Note 1). When the temperature has dropped to —10 to —15° a current of dry hydrogen chloride (Org. Syn. 6, 64) is passed into the acrolein until it shows a gain in weight of 65 g. (1.78 moles). This requires about two hours. The product thus obtained is a clear, viscous, slightly yellow liquid which becomes very turbid and dark colored on standing one or two days (Note 2). [Pg.54]

Clear, viscous liquid. Vapors are highly irritating to the eyes and respiratory system. This material is hazardous through inhalation and ingestion, and produces local skin/eye impacts. [Pg.277]

Accdg to Dr Hans Walter, communicated during his work at Picatinny Arsenal, the name Wasser-stoffperoxyd or Wasserstoffsuperoxyx applies to any strength compd, while the name T-Stoff (T-stuff in Engl) is applied to 80—85% H202 and 20—15% H20. It was a clear viscous liquid fairly stable at ordinary temp and pressure when stored with a small amt of phosphoric acid, serving as a stabilizer. Such a mixt was known as T-Stoff(S) (Ref 4, p 8 Ref 13, p Ger 210-R)... [Pg.221]

The final product will be a clear viscous liquid with a pH between 9.5 and 10.5. [Pg.71]

Yellow, clear viscous liquids, miscible with water. [Pg.503]

Hexafluoropropene (29) can be oxidized in a similar way as tetrafluoroethene, but it can also be oxidized by different methods. Gas-phase oxidations generally lead to mixtures of products. A mixture of products is obtained in the photoinitiated oxidation of 29 with oxygen in both the liquid and gaseous state in addition to low conversions into perfluoro(2-methyloxirane) (30) and other volatile compounds, a clear viscous polymer is obtained as the major product.46 The oxidation at low temperatures gives the epoxide as the dominant product,47 but the conversion is only 24%. Epoxide 30 is obtained in moderate yield, among other products, when a mixture of hexafluoropropene and oxygen difluoride is irradiated with UV light.48 Without irradiation, the mixture does not react at room temperature.48... [Pg.11]

Oleoresin. Natural oleoresins are exudates from plants, whereas prepared oleoresins are solvent extracts of botanicals. which contain oil (both volatile and, sometimes, fixed), and the resinous matter of the plant. Natural oleoresins are usually clear, viscous, and light-colored liquids, whereas prepared oleoresins are heterogeneous masses of dark color. [Pg.1136]

In a 500-ml. round-bottomed flask equipped with a magnetic stirrer bar and a reflux condenser protected by a tube of calcium chloride is placed 100 ml. of acetyl chloride this operation and the subsequent reaction are conducted in a hood. The condenser is temporarily removed, and 50 g (0.226 mole) of dried 2-aceta-mido-2 deoxy-D-glucose (N-acetylglucosamine) (Note 1) is added in the course of 2 or 3 minutes with good stirring. The mixture is stirred for 16 hours without external heating at a room temperature of approximately 25° The mixture boils spontaneously during the first hour of reaction. It is a clear, viscous, amber liquid at the end of the reaction (Note 2). [Pg.1]

Colorless, clear, viscous liquid ammonia odor bp, 116—117°C mp, 8.5°C. Volatile with steam.1... [Pg.266]

Mono- and triethanolamine are miscible with water or alcohol in all proportions and is only slightly soluble in ether. Diethanolamine will dissolve in water, is very soluble in alcohol, and is only slightly soluble in ether. All of the compounds are clear, viscous liquids at standard conditions and white crystalline solids when frozen. They have a relatively low toxicity. In early processes, the ethanolamines were manufactured by reacting ethylene chlorohydrin (C1CH2CH20H) with ammonia (NH3). Current processes... [Pg.209]

EOA s are corrosive and will attack some plastics and rubbers. They are a moderate fire hazard. MEA and TEA are clear, viscous liquids with a mild ammonia-like odor. EOA s absorb water and carbon dioxide from air. DEA is crystalline or a viscous liquid. All are soluble in water and ethanol. Vapor is irritating to the eyes, skin and respiratory tract and depression of the central nervous system can occur. It can also be absorbed by the skin in toxic amounts12. [Pg.318]

Physically, EOA s are clear, viscous liquids at room temperature and white crystalline solids when frozen. Diethanolamine has the highest freezing point of the group, 28.0°C, and monoethanolamine the lowest, 10.5°C. They all have comparatively high boiling points, although at elevated temperatures they are subject to decomposition, particularly diethanolamine. [Pg.318]

Dexpanthenol occurs as a clear, viscous, somewhat hygroscopic liquid. It is the dextrorotatory isomer of the alcohol... [Pg.133]

Related Calculations. Use this procedure for any type of rotary pump—gear, lobe, screw, swinging-vane, sliding-vane, or shuttle-block—handling any clear, viscous liquid. Where the liquid is gas-free, apply only the viscosity correction. Where the liquid viscosity is less than 600 SSU but the liquid contains gas or air, apply the entrained or dissolved gas correction, or both corrections. [Pg.234]

A white crystalline powder or clear viscous liquid which may congeal to a solid form on standing. M.p. of the powder 49° to 54°. [Pg.1057]

PROP Clear, viscous liquid or white soUd. D 1.110-1.140 20°, mp 4-10°, flash p 471°F. Sol in water, org solvs, aromatic hydrocarbons. [Pg.1143]

Appearance Clear, viscous liquid Phosphorus (% by weight) 21.5 Acid Number, mg KOH/g 2 Specific Gravity 8 25C 1.28 Refractive Index nD 25C 1.48 Viscosity (CPS, Brookfield)... [Pg.12]

Appearance clear, viscous liquid Ionic character anionic Reaction pH 6-7... [Pg.70]

Physical form Off-white to yellow clear viscous liquid Ionic nature Nonionic pH 6.0-8.0... [Pg.105]

This material is a high solids melamine formaldehyde resin, designed to produce stiffness and excellent durability when applied to various fabrics in a resin finishing bath. This material exhibits good stability up to 90 days, and is supplied as a clear viscous liquid. A catalyst is required. [Pg.290]


See other pages where Liquids clear viscous is mentioned: [Pg.299]    [Pg.299]    [Pg.87]    [Pg.252]    [Pg.507]    [Pg.499]    [Pg.196]    [Pg.123]    [Pg.218]    [Pg.365]    [Pg.587]    [Pg.682]    [Pg.2264]    [Pg.2]    [Pg.787]    [Pg.519]    [Pg.135]    [Pg.221]    [Pg.179]    [Pg.180]    [Pg.205]   
See also in sourсe #XX -- [ Pg.303 ]




SEARCH



Clear

Clear liquid

Clearness

© 2024 chempedia.info