Acetic acid cellulose acetate

Light green, sparks Acetic acid Cellulose acetate... 

Cellulose acetate is an amorphous material with a specific gravity of 1.30. It burns very slowly with a yellow flame, drips, gives off an odor of vinegar, and has black smoke with soot. It is soluble in acetone, furfuryl alcohol, and acetic acid. Cellulose acetate is positively identified by infrared spectroscopy. 

Benzoic acid cellulose acetate phthalate chlorpropamide ibuprofen indomethacin nicotinic acid oxyphenbutazone phosphoric acid phenylbutazone and salicylic acid. 

See DUST EXPLOSION INCIDENTS (reference 15) See Calcium oxide Water (reference 3) Potassium chlorate Fabric, 4017 Nitric acid Cellulose, 4436 Hydrogen peroxide Acetic acid, Jute, 4477 See also COTTON... 

Acetic acid is used for the manufacture of methyl acetate (Fig. 3) and acetic anhydride (Fig. 4), vinyl acetate, ethyl acetate, terephthalic acid, cellulose acetate, and a variety of acetic esters. 

The Dylux 503 formulation contained a HABI, the leucodye TLA-454, a mixture of quinones, triethanolamine triacetate, several plasticizers, an organic acid, cellulose acetate butyrate binders, as well as antiblocking agents (fluorinated derivatives) as well as a silica derivative to provide tooth to the coating. The selection was made to provide maximum performance at minimum mill cost. The paper substrate required had high holdout, so as to permit two-sided coatings as well as to minimize the wicking of chemistry into the base. 

Amyloid.—When treated with concentrated sulphuric acid cellulose dissolves and undergoes hydrolysis. If the solution is diluted with water a gelatinous product is obtained which gives the blue color with iodine characteristic of starch. This product is known as amyloid. When boiled in the dilute acid the amyloid is hydrolyzed and dextrin and finally glucose are obtained. Concentrated hydrofluoric acid and phosphoric acid also dissolve cellulose. With glacial acetic acid in the presence of acetic anhydride and sulphuric acid cellulose yields acetyl derivatives indicating its alcoholic character. From the products of this reaction the acetate of a di-saccharose is obtained. 

In the presence of acetic anhydride, acetic acid, and a little sulfuric acid, cellulose is converted into the triacetate. Partial hydrolysis removes some of the acetate groups, degrades the chains to smaller fragments (of 200-300 units each), and yields the vastly important commercial cellulose acetate (roughly a //acetate). 

Among the esters with organic acids, cellulose acetate is the most important one. Cellulose acetate has numerous uses such as manufacture of yarn, photographic films, lacquers, etc. Cellulose can be acetylated starting with lower levels of esterification up to the formation of cellulose triacetate. The acetate is obtained from the reaction of cellulose with acetic anhydride, usually in the presence of a catalyst such as H2SO4 or HCIO4. Numerous industrial procedures are known for this process [43]. 

After treating cellulose with sulfuric acid and acetic acid, cellulose triacetate is produced. Cellulose triacetate and its derivatives are used in the textile industry and in the production of films. 

Specimen surface was polished electrochemically by mixed solution of sulfuric acid and ethyl alcohol (1 3). After polishing, the surface of the specimen was adhered by a film of nitric acid cellulose using acetic acid methyl solution. Specimens were then sealed in the polyethylene sheet and irradiated for 43.2 Ks (12 h) by the atomic reactor in Rikkyo University (thermal neutron = 1.1 x 1010 n/cm2 s) or JRR-4 in JAERI (1.5 x 109 n/cm2 s). After cooling down for 0.61 Ms (7days), the film of nitric acid cellulose was striped off from specimen. Boron distribution in the specimen corresponds to particle-tracks produced on the film of nitric acid cellulose by the interaction between thermal neutron and boron (10B (n,a) 7Li). Using 2.5N-NaOH solution at 303 K, particle-tracks by a-rays produced by thermal neutron with boron were etched for 2.7 ks. Then etched films were washed for 10.8 ks in flowing water. We observed microstructure by optical microscopy and SEM. 

BUTANAMINE, n-BUTYL (111-92-2) Forms explosive mixture with air (flash point 117 F/47°C). An organic base. Violent reaction with oxidizers, acids, cellulose nitrate. Incompatible with organic anhydrides, isocyanates, vinyl acetate, acrylates, substituted allyls, alkylene oxides, epichlorohydrin, halogenated compounds, ketones, aldehydes, alcohols, glycols, phenols, cresols, caprolactam solution. Attacks copper, magnesium, tin, zinc, or their alloys, and galvanized steel,... 

See AIao Acetic Acid Cellulose Nitrate Penicillin... 

Acetic acid, cellulose ester. See Cellulose acetate Acetic acid, cobalt (2+) salt, tetrahydrate. See Cobalt acetate (ous) Acetic acid, decyl ester, branched. See Cl 0 alkyl acetate Acetic acid, dimethyl-. See Isobutyric acid Acetic acid-1,3-dimethylbutyl ester. See Methyl amyl acetate Acetic acid-2,6-dimethyl-m-dioxan-4-yl ester Acetic acid, ester with 2,6-dimethyi-m-dioxan-4-oi. See 6-Acetoxy-2,4-dimethyl-m-dioxane Acetic acid esters of mono- and digiycerides Acetic acid esters of mono-and digiycerides of fatty acids. SeeAcetylated mono- and digiycerides of fatty acids... 

Synonyms Acetate cotton Acetate ester of cellulose Acetic acid, cellulose ester Acetose Acetylcellulose CA Cellulose, acetate Cellulose 2.5-acelate Cellulose acetate ester Cellulose. 2.5-diacetate Cellulose monoacetate Monoacetylcellulose Secondary cellulose acetate Classification Cellulosics thermoplastic resin Properties Triacetate insol. in water, alcohol, ether, sol. in glacial acetic acid tetraacetate insol. in water, alcohol, ether, glacial acetic acid, methanol pentaacetate insol. in water, sol. in alcohol m.w. 37.000 dens. 1.300... 

Acetic acid, cedrol ester. See Cedryl acetate Acetic acid, cellulose ester. See Cellulose acetate... 

Synonyms Acetate cotton Acetate ester of cellulose Acetic acid, cellulose ester Acetose Acetylcellulose... 

Acetic acid Cellulose cellulose acetate plastic mfg. 

Petersson L, Kvien 1, Oksman K (2007) Structure and thermal properties of poly (lactic acid)/ cellulose whiskers nanocomposite materials. Compos Sci Technol 67 2535-2544 Petersson L, Mathew AP, Oksman K (2009) Dispersion and properties of cellulose nanowhiskers and layered silicates in cellulose acetate butyrate nanocomposites. J Appl Polym Sci 112 ... 

Ripening n. Hydrolysis of cellulose acetate after acetylation to obtain the desired acetyl value. This is generally accomphshed by heat and agitation of the acid cellulose acetate solution under controlled conditions of time, temperature, and acidity. Rapid ripening is accomphshed by using increased temperature for the reaction. 

Geranic acid Cellulose acetate + ceramic substrate composite Flat 30... 

Kozakiewicz J J and Maginess J E (1987) Characterization and free-radical polymerization of hquid-crystaUine acrylic acid cellulose acetate and iV-vinyl-2-pyrrolidone cellulose diacetate solution, J Appl Polym Sci 34 1109-1116. 

Methylene chloride mixed solvent of ethanol = 9 1, ester A completely acetylated 3-acetic acid cellulose is crystalline and takes two types of the crystal structure of acetyl cellulose, I or II. The crystal structure can be interchanged by adding heat. 

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