BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P305+P351+P338
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P332+P313
Bei Hautreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.
P337+P313
Bei anhaltender Augenreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.
Dulcin is a non-nutritive sweetener. Dulcin is a sweet analgesic for use in medical procedures or treatments.
Vorbereitung Methode
4-Ethoxyphenylurea, dulcin, is produced from the addition of potassium cyanate to p-phenetidine hydrochloride in aqueous solution at room temperature or from mixing urea and p-phenetidine hydrochloride to a mixture of hydrochloric acid and glacial acetic acid.
Allgemeine Beschreibung
White crystals.
Air & Water Reaktionen
Partially decomposes on heating in water; hydrolyzes in 0.1 N acetic acid. Slightly water soluble .
Reaktivit?t anzeigen
DULCIN is an example of an amide. Amides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides 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).
Sicherheitsprofil
Human poison by
ingestion. Moderately toxic experimentally
by ingestion. Human systemic effects by
ingestion: somnolence, hallucinations,
distorted perceptions, and changes in motor
activity. In adults 20 to 40 g produces
dizziness, nausea, methemoglobinemia,
cyanosis, and hypotension. Questionable
carcinogen with experimental tumorigenic
data. When heated to decomposition it
emits toxic fumes of NOx.
(4-Ethoxyphenyl)harnstoff Upstream-Materialien And Downstream Produkte