D-Glucono-1,5-lacton

Bezeichnung:D-Glucono-1,5-lacton

CAS-Nr90-80-2

Englisch Name:D-(+)-Glucono-1,5-lactone

CBNumberCB4494337

SummenformelC6H10O6

Molgewicht178.14

MOL-Datei90-80-2.mol

Synonyma

D-Glucono-1,5-lacton

D-Glucono-1,5-lacton physikalisch-chemischer Eigenschaften

Schmelzpunkt	160 °C (dec.)(lit.)
Siedepunkt	230.35°C (rough estimate)
alpha	65 º (c=1,H2O)
Dichte	0.6
Brechungsindex	63.5 ° (C=10, H2O)
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	590g/l Hydrolysis
Aggregatzustand	Crystalline Powder
pka	12.06±0.60(Predicted)
Farbe	White to off-white
PH	3.6 (10g/l, H2O, 20℃)
Geruch (Odor)	wh. cryst. powd., pract. odorless
Wasserlöslichkeit	500 g/L (20 ºC)
Merck	14,4457
BRN	83286
LogP	-2.38
CAS Datenbank	90-80-2(CAS DataBase Reference)
NIST chemische Informationen	D-Gluconic acid, «delta»-lactone(90-80-2)
EPA chemische Informationen	.delta.-Gluconolactone (90-80-2)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	21-36/38-46-62-63
S-Sätze:	24/25-53-36/37-26-25
WGK Germany	3
RTECS-Nr.	LZ5184000
F	21
TSCA	Yes
HS Code	29322090
Giftige Stoffe Daten	90-80-2(Hazardous Substances Data)

Gefahreninformationscode (GHS)

D-(+)-Glucono-1,5-lactone Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R21:Gesundheitsschädlich bei Berührung mit der Haut.
R36/38:Reizt die Augen und die Haut.
R46:Kann vererbbare Schäden verursachen.
R62:Kann möglicherweise die Fortpflanzungsfähigkeit beeinträchtigen.
R63:Kann das Kind im Mutterleib möglicherweise schädigen.
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S25:Berührung mit den Augen vermeiden.
Beschreibung
Glucono delta-lactone (C6H10O6), molecular weight 178.14, is an inner ester of gluconic acid. Commonly named gluconolactone, other synonyms include D-gluconic acid delta-lactone, D-glucono- 1, 5-lactone, and D-delta-gluconolactone. Some of its earliest uses as a food ingredient were as a flavoring (e.g., sherbets) and to reduce fat absorption in doughnuts and cones. Glucono deltalactone tastes sweet initially and has a slightly acid-aftertaste.
Chemische Eigenschaften
Powder
Verwenden
Geogard(R)Ultra is a synergistic blend of gluconolactone and sodium benzoate. This blend provides broad spectrum protection against product spoilage in a variety of personal care formulations. Product Data Sheet
Verwenden
D-glucono-1,5-lactone is the lactone derivative of D-gluconic acid. D-glucono-1,5-lactone is widely used as a food additive to achieve a curing, pickling or leavening effect.
Verwenden
Component of many cleaning cmpds because of the sequestering ability of the gluconate radical which remains active in alk solutions; in the dairy industry to prevent milkstone; in breweries to prevent beerstone; as latent acid catalyst for acid colloid resins, particularly in textile printing; as a coagulant for tofu.
Verwenden
(GDL) An acidulant. It hydrolyzes to form gluconic acid in water solution and thereby creates the desired pH. The rate of acid formation is affected by temperature, concentration, and the pH of the solution. It has low acid release at room temperature and accelerated conversion into gluconic acid at high temperatures. It is readily soluble with a solubility of 59 g in 100 ml of water at 20°C. It functions as a leavening agent, acidulant, curing and pickling agent, and pH control agent. It is comparatively less tart/sour than other food acids. It is used in baked goods, fish products, desserts, and dressings.
Verwenden
gluconolactone is used in cosmetics for its anti-acne properties. It can also help improve skin hydration given its water-binding ability. In addition, formulators may select gluconolactone for its action as a product stabilizer (chelating agent). Some studies indicate potential free-radical scavenging capacities as well. These properties would make it particularly relevant for use in making anti-aging, moisturizing, and possibly sun care products.
Verwenden
a product of the oxidation of glucose by glucose oxidase
Verwenden
A lactone (cyclic ester) of D-gluconic acid used as a used as a sequestrant, an acidifier, or a curing, pickling, or leavening agent.
Definition
ChEBI: D-glucono-1,5-lactone is an aldono-1,5-lactone obtained from D-gluconic acid. It has a role as an animal metabolite and a mouse metabolite. It is a gluconolactone and an aldono-1,5-lactone. It is functionally related to a D-gluconic acid.
synthetische
Glucono delta-lactone is prepared commercially by the oxidation of glucose with bromine water.
Allgemeine Beschreibung
Gluconolactone is a non-toxic component of the skin. It has anti-oxidant and free radical scavenging effects. Gluconolactone has antiaging and skin-firming properties. It acts as a?β-glucosidase inhibitor. Gluconolactone stimulates cellulase gene expression.
Flammability and Explosibility
Non flammable
Biochem/physiol Actions
Glucono-d-lactone increased the doubling time and activated enzymes involved in the oxidative pentose phosphate pathway of Saccharomyces cerevisiae.
Sicherheitsprofil
Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
läuterung methode
Crystallise Dglucono-lactone from ethylene glycol monomethyl ether and dry for 1hour at 110o. It can be freed from other sugars via a column of Celite and charcoal (750g of each, 90 x 7.5cm) which is washed with 0.01N formic acid until the pH of the wash is equal to that of the entering acid. The lactone is applied in H2O and eluted with 0.01N formic acid (7L), then eluted with 7.5% EtOH/0.01N formic acid (8L), then 15% EtOH/0.01N formic acid (8L) which removes pentose and isomaltose (the optical rotation of the eluates are used for sugar detection) and finally elution with aqueous formic acid provides glucolactone which is obtained by evaporating or freeze drying. Its solubility in H2O is 60% and 1% in EtOH. A solution in H2O is slightly acidic, and the lactone dissolves in an equivalent of aqueous NaOH to form sodium D-gluconate [527-07-1] M 218.1, m 2002 0 6o(dec), [ ] D 25 +12o (c 10, H2O), pK2 5 3.6. [cf p 553, Smith & Whelan Biochemical Preparations 10 127 1963, Beilstein 3 IV 1255.]

D-(+)-Glucono-1,5-lactone Upstream-Materialien And Downstream Produkte

D-Glucono-1,5-lacton Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

90-80-2, D-(+)-Glucono-1,5-lactone Verwandte Suche:

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