N,N'-Diethylthioharnstoff

Bezeichnung:N,N'-Diethylthioharnstoff

CAS-Nr105-55-5

Englisch Name:N,N'-Diethylthiourea

CBNumberCB2438858

SummenformelC5H12N2S

Molgewicht132.23

MOL-Datei105-55-5.mol

Synonyma

1,3-Diethyl-2-thioharnstoff

N,N'-Diethylthioharnstoff

N,N'-Diethylthioharnstoff physikalisch-chemischer Eigenschaften

Schmelzpunkt	76-78 °C(lit.)
Siedepunkt	245°C (estimate)
Dichte	1,12 g/cm³
Dampfdruck	0.001Pa at 25℃
Brechungsindex	1.5300 (estimate)
Flammpunkt	186 °C
storage temp.	Store below +30°C.
Löslichkeit	42g/l
Aggregatzustand	solid
pka	14.47±0.70(Predicted)
Farbe	White to Off-White
PH	7 (38g/l, H2O, 20℃)
Wasserlöslichkeit	38 g/L (20 ºC)
BRN	773905
Stabilität	Stable. May be air sensitive. Incompatible with strong oxidizing agents.
InChIKey	FLVIGYVXZHLUHP-UHFFFAOYSA-N
LogP	0.57
CAS Datenbank	105-55-5(CAS DataBase Reference)
NIST chemische Informationen	Diethyl-2-thiourea(105-55-5)
IARC	3 (Vol. 79) 2001
EPA chemische Informationen	N,N'-Diethylthiourea (105-55-5)

Sicherheit

Kennzeichnung gefährlicher	Xn,T
R-Sätze:	22-40-45-20/21/22
S-Sätze:	45-36/37-53-24/25
WGK Germany	2
RTECS-Nr.	YS9800000
TSCA	Yes
HS Code	29309070
Giftige Stoffe Daten	105-55-5(Hazardous Substances Data)

Gefahreninformationscode (GHS)

N,N'-Diethylthiourea Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R40:Verdacht auf krebserzeugende Wirkung.
R45:Kann Krebs erzeugen.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
Beschreibung
Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products.
Chemische Eigenschaften
white to buff-coloured solid
Verwenden
N,N′-Diethylthiourea can be used as a reactant to prepare:
- 3,5-Diethyltetrahydro-4-thioxo-1,3,5-triazine-1(2H)-propanoic acid by condensation reaction with formaldehyde and β-alanine.
- Methyl 3-ethyl-2-(ethylimino)-3,4-dihydro-4-oxo-2H-1,3-thiazine-6-carboxylate by one-pot reaction with dimethyl acetylenedicarboxylate in the presence of triphenylphosphine catalyst.
- 2-(Ethylimino)-3-ethyl-thiazolidin-4-one by cyclization reaction with 2-chloroacetic acid.
- 3-Ethyl-2-(ethylimino)-4-oxo-5-thiazolidineacetamide by condensation reaction with maleimides via Michael-type reaction.
Verwenden
Diethyl thiourea is the inhibitor of corrosion in metal pick/ing solutions; accelerator for mercaptan-modified chloroprene rubber; antidegradant for natural, nitrile-butadiene, styrene-butadiene, and chloroprene rubbers
Definition
ChEBI: Thiourea in which each nitogen carries an ethyl substituent.
Allgemeine Beschreibung
Buff solid or white powder.
Air & Water Reaktionen
N,N'-Diethylthiourea may be sensitive to exposure to air. . Slightly soluble in water.
Reaktivität anzeigen
N,N'-Diethylthiourea is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition N,N'-Diethylthiourea emits toxic fumes.
Brandgefahr
Flash point data are not available for N,N'-Diethylthiourea, but N,N'-Diethylthiourea is probably combustible.
Flammability and Explosibility
Non flammable
Kontakt-Allergie
Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products.
Sicherheitsprofil
Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx
läuterung methode
Crystallise it from *benzene. [Beilstein 4 H 118, 4 I 355, 4 II 610, 4 III 220, 4 IV 375.]

N,N'-Diethylthiourea Upstream-Materialien And Downstream Produkte

N,N'-Diethylthioharnstoff Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

105-55-5, N,N'-Diethylthiourea Verwandte Suche:

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