1,3-Dichlor-5,5-dimethylhydantoin Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R34:Verursacht Verätzungen.
R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
R50:Sehr giftig für Wasserorganismen.
R43:Sensibilisierung durch Hautkontakt möglich.
R31:Entwickelt bei Berührung mit Säure giftige Gase.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S17:Von brennbaren Stoffen fernhalten.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
DCDMH is a combustible, white powder.
Chlorine-like odor.
Physikalische Eigenschaften
White powder or four-sided crystals from chloroform with a chlorine-like odor. Aqueous solutions
are acidic.
Verwenden
Dantoin(R) DCDMH is an industrial bleaching agent based on dimethyl hydantoin. This product finds application wherever solid bleach is desired.
Definition
Methionine hydroxy analog c. 90%.
Allgemeine Beschreibung
White powder with a weak chlorine odor. Conflagrates at 414°F (turns brown). Chlorine gas evolves > 410°F.
Air & Water Reaktionen
Sensitive to exposure to light, air, and moisture. Reacts with water or steam to produce toxic and corrosive fumes.
Reaktivität anzeigen
1,3-Dichloro-5,5-dimethylhydantoin reacts violently with xylene. 1,3-Dichloro-5,5-dimethylhydantoin is incompatible with strong acids, easily oxidized materials, ammonia salts and sulfides. 1,3-Dichloro-5,5-dimethylhydantoin will react with water or steam to produce toxic and corrosive fumes. At a pH of 9, 1,3-Dichloro-5,5-dimethylhydantoin decomposes completely.
Health Hazard
1,3-Dichloro-5,5-dimethylhydantoin
powder in contact with water yields
hypochlorous acid, which is an irritant of the
eyes and mucous membranes.
Brandgefahr
Flash point data for 1,3-Dichloro-5,5-dimethylhydantoin are not available. 1,3-Dichloro-5,5-dimethylhydantoin is probably combustible.
Sicherheitsprofil
Moderately toxic by
ingestion. Mildly toxic by inhalation. A
severe slun irritant. Mutation data reported.
Avoid excessive contact because of effects
of active chlorine on skin. Some of the
hydantoins are central nervous system
depressants. Mixtures with xylene may
explode. Wdl react with water or steam to
produce toxic and corrosive fumes. When
heated to decomposition it emits toxic
fumes of Cl and NOx. See also
CHLORIDES.
mögliche Exposition
It is used as a chlorinating agent,
disinfectant, biocide, and laundry bleach. It is also used as
a polymerization catalyst in making vinyl chloride; and
in drug and pesticide synthesis.
Environmental Fate
Chemical/Physical. Reacts with water (pH 7.0) releasing hypochlorous acid. At pH 9, nitrogen
chloride is formed (Windholz et al., 1983).
Versand/Shipping
UN1479 Oxidizing solid, n.o.s., Hazard Class:
5.1; Labels: 5.1-Oxidizer, Technical Name Required
läuterung methode
Purify it by dissolving in conc H2SO4 and diluting with ice H2O, collect the solid, dry it in a vacuum and recrystallise it from CHCl3. It sublimes at 100o in a vacuum. It exhibits time-dependent hydrolysis at pH 9. [Petterson & Grzeskowiak J Org Chem 24 1414 1959, Beilstein 24 III/IV 1100.]
Inkompatibilitäten
A strong oxidizer. Contact with water
forms poisonous and corrosive gases. Mixtures with xylene
may explode. Not compatible with moisture (especially hot
water, steam), strong acids; easily oxidized materials (such
as ammonia salts; sulfides, etc.); reducing agents; strong
bases; ammonium salts; sulfides. Compounds of the
carboxyl group react with all bases, both inorganic and
organic (i.e., amines) releasing substantial heat, water and
a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds,
dithiocarbamates, isocyanates, mercaptans, nitrides, and
sulfides (releasing heat, toxic and possibly flammable
gases), thiosulfates and dithionites (releasing hydrogen
sulfate and oxides of sulfur)
Waste disposal
Incineration (815.5C/816C,
0.5 second for primary combustion; 104.4C/220F, 1.0 second for secondary combustion). The formation of elemental
chlorine can be prevented by injection of steam or methane
into the combustion process. Any nitrogen oxides may be
abated by the use of thermal or catalytic devices
1,3-Dichlor-5,5-dimethylhydantoin Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
