Pentan-1,5-diol

Bezeichnung:Pentan-1,5-diol

CAS-Nr111-29-5

Englisch Name:1,5-Pentanediol

CBNumberCB6732871

SummenformelC5H12O2

Molgewicht104.15

MOL-Datei111-29-5.mol

Synonyma

Pentan-1,5-diol

Pentan-1,5-diol physikalisch-chemischer Eigenschaften

Schmelzpunkt	-18 °C
Siedepunkt	242 °C (lit.)
Dichte	0.994 g/mL at 25 °C (lit.)
Dampfdichte	3.59
Dampfdruck	<0.01 mm Hg ( 20 °C)
Brechungsindex	n20/D 1.450(lit.)
Flammpunkt	135 °C
storage temp.	Store below +30°C.
Löslichkeit	Methanol (Slightly)
pka	14.83±0.10(Predicted)
Aggregatzustand	Oily Liquid
Farbe	Clear colorless
Geruch (Odor)	odorless
PH	7.5 (H2O)
Explosionsgrenze	1.3-13.1%(V)
Wasserlöslichkeit	Miscible
Sensitive	Hygroscopic
Merck	14,7117
BRN	1560130
Dielectric constant	25.300000000000001
InChIKey	ALQSHHUCVQOPAS-UHFFFAOYSA-N
LogP	-0.49 at 25℃
CAS Datenbank	111-29-5(CAS DataBase Reference)
NIST chemische Informationen	1,5-Pentanediol(111-29-5)
EPA chemische Informationen	1,5-Pentanediol (111-29-5)

Sicherheit

S-Sätze:	24/25
WGK Germany	1
RTECS-Nr.	SA0480000
Selbstentzündungstemperatur	635 °F
TSCA	Yes
HS Code	29053980
Giftige Stoffe Daten	111-29-5(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 10000 mg/kg LD50 dermal Rabbit > 19800 mg/kg

Gefahreninformationscode (GHS)

1,5-Pentanediol Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
clear colorless oily liquid
Verwenden
1,5-Pentanediol is used as a reagent in the total synthesis of (+)-Rubriflordilactone A, a nortriterpenoid natural product. 1,5-Pentanediol is also the starting material in the synthesis of Pseudomonic Acid D Sodium (P839520); an antibiotic isolated from Pseudomonas fluorescens.
Verwenden
1,5-Pentanediol is used largely as a chemical intermediate. Industrial exposure is likely to be from direct contact.
Definition
ChEBI: Pentane-1,5-diol is a primary alcohol.
Synthesis Reference(s)
Journal of the American Chemical Society, 68, p. 1646, 1946 DOI: 10.1021/ja01212a085
Tetrahedron Letters, 21, p. 1501, 1980 DOI: 10.1016/S0040-4039(00)92757-6
Flammability and Explosibility
Not classified
Sicherheitsprofil
Mildly toxic by ingestion. A skin and eye irritant. Combustible when exposed to heat or flame; can react with oxidizing materials. To fight fire, use foam, CO2, dry chemical. Used as a plasticizer in cellulose products and adhesives, and in brake fluid.
Synthese
1,5-Pentanediol usually is produced by catalytic hydrogenation of glutaric acid or of its esters, e.g., dimethyl glutarate, although dicarboxylic acid mixtures containing glutaric acid also may be used, giving typically a mixture of 1,4-butanediol, 1,5-pentanediol, and 1,6-hexanediol. A process using alkoxydihydropyrans as raw materials has also been reported. The crude products are purified by distillation.
Solubility in organics
1,5-Pentanediol is soluble in water, alcohols acetone, and relatively insoluble in aliphatic and aromatic hydrocarbons.

1,5-Pentanediol Upstream-Materialien And Downstream Produkte

Pentan-1,5-diol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

111-29-5, 1,5-Pentanediol Verwandte Suche:

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