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ChemicalBook > Produktkatalog >Bio- und Chemieingenieurwesen >Kohlenhydrate >Polysaccharide >CELLULOSE ACETATE

CELLULOSE ACETATE Produkt Beschreibung

CAS-Nr.9004-35-7
Bezeichnung:
Englisch Name:CELLULOSE ACETATE
Synonyma:
dp06;dp02;pp612;pp613;pp628;strux;A 50T;AC 61;360E16;AC 300
CBNumber:CB5196205
Summenformel:[C6H7O2(OH)3-m(OOCCH3)m], m = 0~3
Molgewicht:0
MOL-Datei:Mol file
CELLULOSE ACETATE physikalisch-chemischer Eigenschaften
Schmelzpunkt:: 230-300℃
Dichte: 1.3 g/mL at 25 °C(lit.)
Brechungsindex: n20/D 1.475(lit.)
Löslichkeit: The solubility of cellulose acetate is greatly influenced by the level of acetyl groups present. In general, cellulose acetates are soluble in acetone–water blends of varying ratios, dichloromethane– ethanol blends, dimethyl formamide, and dioxane.
Aggregatzustand: Powder
Farbe: White
Wichte: 1.3
Merck : 13,1978
Stabilität:: Stable. Combustible. Incompatible with strong oxidizing agents.
Sicherheit
WGK Germany : -
HS Code : 39121100

CELLULOSE ACETATE Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften
Cellulose acetate, white powder, is the general name for the acetic acid esters of cellulose, cellulose pentaacetate, C6H5(OOCCH3)5, cellulose tetraacetate, C6H6(OOCCH3)4 and cellulose triacetate,C6H7O2(OOCCH3)3. Cellulose acetate is a tough, flexible, slow-burning and long-lasting material used in the production of plastic film for food packaging,magnetic tape, and movie film.
Chemische Eigenschaften
Cellulose acetate occurs as a hygroscopic white to off-white, freeflowing powder, pellet, or flake. It is tasteless and odorless, or may have a slight odor of acetic acid.
Verwenden
Coatings Coatings for glass Coatings for paper/paperboard Consumer electronics Electrical Food packaging Food-contact applications Pressure sensitive tape Wood sealers
Vorbereitung Methode
Cellulose acetate is prepared from highly purified cellulose by treatment with acid catalysis and acetic anhydride.
Landwirtschaftliche Anwendung
Cellulose acetate is an ester in which cellulose (cotton linters or wood pulp) is treated with a mixture of acetic anhydride, acetic acid and concentrated sulphuric acid. This solution, when treated with water, forms a flocculent white mass of cellulose acetate which is used as a fiber and in lacquers, non-breakable glass and varnishes.
Pharmazeutische Anwendungen
Cellulose acetate is widely used in pharmaceutical formulations both in sustained-release applications and for taste masking.
Cellulose acetate is used as a semipermeable coating on tablets, especially on osmotic pump-type tablets and implants. This allows for controlled, extended release of actives. Cellulose acetate films, in conjunction with other materials, also offer sustained release without the necessity of drilling a hole in the coating as is typical with osmotic pump systems. Cellulose acetate and other cellulose esters have also been used to form drug-loaded microparticles with controlled-release characteristics.
Cellulose acetate films are used in transdermal drug delivery systems and also as film coatings on tablets or granules for taste masking. For example, acetaminophen granules have been coated with a cellulose acetate-based coating before being processed to provide chewable tablets. Extended-release tablets can also be formulated with cellulose acetate as a directly compressible matrix former. The release profile can be modified by changing the ratio of active to cellulose acetate and by incorporation of plasticizer, but was shown to be insensitive to cellulose acetate molecular weight and particle size distribution.
Therapeutically, cellulose acetate has been used to treat cerebral aneurysms, and also for spinal perimedullary arteriovenous fistulas.
Industrielle Verwendung
Cellulose acetate is an amber-colored, transparentmaterial made by the reaction of celluloseand acetic acid or acetic anhydride in the presenceof sulfuric acid.
It is thermoplastic and easily molded. Themolded parts or sheets are tough, easilymachined, and resistant to oils and many chemicals.In coatings and lacquers the material isadhesive, tough, and resilient, and does not discoloreasily. Cellulose acetate fiber for rayonscan be made in fine filaments that are strongand flexible, nonflammable, mildew proof, andeasily dyed. Standard cellulose acetate formolding is marketed in flake form.
In practical use, cellulose acetate moldingsexhibit toughness superior to most other general-purpose plastics. Flame-resistant formulationsare currently specified for small appliancehousings and for other uses requiring this property.Uses for cellulose acetate molding materialsinclude toys, buttons, knobs, and otherparts where the combination of toughness andclear transparency is a requirement.
Sicherheit(Safety)
Cellulose acetate is widely used in oral pharmaceutical products and is generally regarded as a nontoxic and nonirritant material.
Lager
Cellulose acetate is stable if stored in a well-closed container in a cool, dry place. Cellulose acetate hydrolyzes slowly under prolonged adverse conditions such as high temperature and humidity, with a resultant increase in free acid content and odor of acetic acid.
Inkompatibilitäten
Cellulose acetate is incompatible with strongly acidic or alkaline substances. Cellulose acetate is compatible with the following plasticizers: diethyl phthalate, polyethylene glycol, triacetin, and triethyl citrate.
Regulatory Status
Included in the FDA Inactive Ingredients Database (oral tablets). Included in the Canadian List of Acceptable Non-medicinal Ingredients.
CELLULOSE ACETATE Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Essigsäureanhydrid
Downstream Produkte
CELLULOSE ACETATE Anbieter Lieferant Produzent Hersteller Vertrieb Händler.      Global( 102)Lieferanten     
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21930 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693info@tianfuchem.com CHINA 20680 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684info@tnjchem.com China 1750 55
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23983 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093export@haihangchem.com CHINA 4660 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)sh@meryer.com China 40277 62
BeiJing Hwrk Chemicals Limted 4006990298;010-57411839;0757-86311057;021-51691807
010-87653215;0757-86311057;021-55236763sales@hwrkchemical.com China 14611 55
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
+86-21-54291107info@hanhonggroup.com China 43266 64
Chengdu XiYa Chemical Technology Co., Ltd. 4008-626-111
028-84752058sale@xiyashiji.com China 9636 57
 
9004-35-7(CELLULOSE ACETATE)Verwandte Suche:
a432-130b acetatecotton acetateesterofcellulose aceticacid,celluloseester acetose acetyl35 cellulose2,5-acetate cellulosemonoacetate crellate dp02 dp06 e376-40 e383-40 e394-30 e394-40 e394-45 e394-60 e398-10 e-400-25 eastman298-10 etroloem monoacetylcellulose nicollembal nixonc/a plastacele pp612 pp613 pp628 stripmix strux t-cellit tenitei vladipor CELLULOSE ACETATE CELLULOSE ACETATE SAC 20 CELLULOSE ACETATE TRIMELLITATE ACETYLCELLULOSE cellulose acetate dac 20 CELLULOSE ACETATE, MR ~52000 CELLULOSE ACETATE, MR ~37000 CELLULOSE ACETATE SAC 20, ACETYLATED CELLULOSE ACETATE, MR ~61000 CELLULOSE ACETATE DAC 20, ACETYLATED CELLULOSE ACETATE, MR ~29000 CELLULOSE ACETATE, 39.8 WT. % ACETYL CON TENT, AVERAGE MN CA. 30,000 CELLULOSE ACETATE, 39.7 WT. % ACETYL CON TENT, AVERAGE MN CA. 50,000 (GPC) AcetateCellulose foilandsheets lowmolecularweight membranes CELLULOSE ACETATE FLAKES LPLC Separation Media LPLC/TLC/Paper Chromatography Analytical Chromatography Product Catalog Cellulose Cation 9004-35-7 360E16
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