1,3-Dichlor-5,5-dimethylhydantoin

Bezeichnung:1,3-Dichlor-5,5-dimethylhydantoin

CAS-Nr118-52-5

Englisch Name:1,3-Dichloro-5,5-dimethylhydantoin

CBNumberCB3103672

SummenformelC5H6Cl2N2O2

Molgewicht197.02

MOL-Datei118-52-5.mol

Synonyma

1,3-Dichlor-5,5-dimethylhydantoin

1,3-Dichlor-5,5-dimethylhydantoin physikalisch-chemischer Eigenschaften

Schmelzpunkt	132-134 °C (lit.)
Siedepunkt	214.7±23.0 °C(Predicted)
Dichte	1,5 g/cm³
Dampfdruck	0.003Pa
Brechungsindex	1.5720 (estimate)
Flammpunkt	171 °C
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
Löslichkeit	water: soluble0.21% at 25°C(lit.)
Aggregatzustand	Crystalline Powder
pka	-3.44±0.40(Predicted)
Farbe	White
PH	4.4 (H2O)(HSDB)
Wasserlöslichkeit	0.21 g/100 mL (25 ºC)
Sensitive	Moisture Sensitive
Sublimation	100 ºC
Merck	14,3065
BRN	146013
Expositionsgrenzwerte	NIOSH REL: TWA 0.2, STEL 0.4, IDLH 5; OSHA PEL: TWA 0.2, STEL/C 0.4 (adopted).
Stabilität	Stable, but a strong oxidizer - contact with combustible material may lead to fire. Incompatible with reducing agents, acids, strong bases. Moisture sensitive.
InChIKey	KEQGZUUPPQEDPF-UHFFFAOYSA-N
LogP	-0.94
CAS Datenbank	118-52-5(CAS DataBase Reference)
EPA chemische Informationen	1,3-Dichloro-5,5-dimethylhydantoin (118-52-5)

Sicherheit

Kennzeichnung gefährlicher	Xn,C,O,N
R-Sätze:	22-36/37/38-34-8-50-43-31-20/21/22
S-Sätze:	26-36-45-36/37/39-17-61
RIDADR	UN 1479 5.1/PG 2
OEB	C
OEL	TWA: 0.2 mg/m3, STEL: 0.4 mg/m3
WGK Germany	3
RTECS-Nr.	MU0700000
TSCA	Yes
HazardClass	5.1
PackingGroup	II
HS Code	29332100
Giftige Stoffe Daten	118-52-5(Hazardous Substances Data)
Toxizität	LD50 oral in rabbit: 1520mg/kg
IDLA	5 mg/m3

Gefahreninformationscode (GHS)

1,3-Dichloro-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.
Beschreibung
DCDMH is a combustible, white powder witha chlorine-like odor. Molecular weight=197.03; Freezing/Melting point=130℃; Flash point=175℃. HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 1, Reactivity 0 Oxidizer, . Waterreactive; slightly soluble; solubility=0.2%.
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
Chlorinating agent; disinfectant; laundry bleach; in water treatment; intermediate for drugs; insecticides; polymerization catalyst
Verwenden
Dantoin(R) DCDMH LD (low dust) is an industrial bleaching agent based on dimethyl hydantoin. This product finds application wherever solid bleach is desired.
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.
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin,remove contaminated clothing and wash immediately withsoap and water. Seek medical attention immediately. If thischemical has been inhaled, remove from exposure, beginrescue breathing (using universal precautions, includingresuscitation mask) if breathing has stopped and CPR if heartaction has stopped. Transfer promptly to a medical facility.When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Donot make an unconscious person vomit. Medical observationis recommended for 24-48 h after breathing overexposure,as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consideradministering a corticosteroid spray.
Environmental Fate
Chemical/Physical. Reacts with water (pH 7.0) releasing hypochlorous acid. At pH 9, nitrogen chloride is formed (Windholz et al., 1983).
Lager
(1) Color Code—Yellow: Reactive Hazard; Storein a location separate from other materials, especially flammables and combustibles. (2) Color Code—White:Corrosive or Contact Hazard; Store separately in a corrosion-resistant location. Prior to working with this chemicalyou should be trained on its proper handling and storage.1,3-Dichloro-5,5-dimethyl-hydantoin must be stored toavoid contact with strong acids (such as sulfuric acid, nitricacid, or hydrochloric acid) and easily oxidized materials(such as ammonium salts and sulfides) since violent reactions occur and poisonous gases can be produced. Store intightly closed containers in a cool, well-ventilated area awayfrom water or steam. 1,3-Dichloro-5,5-dimethyl-hydantoindecomposes with formation of poisonous gases at201-210℃. If 1,3-dichloro-5,5-dimethyl-hydantoin contacts water or steam, it decomposes at lower temperaturesand produces poisonous gases, including chlorine. Sourcesof ignition, such as smoking and open flames, are prohibitedwhere 1,3-dichloro-5,5-dimethyl-hydantoin is used, handled,or stored in a manner that could create a potential fire orexplosion hazard.
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)
Filter für giftige stoffe
The initial threshold screening level (ITSL) for the following bromo- and chloro dimethylhydantoins is 2 μg/m3, based on an 8-hour averaging time.
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

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