118-52-5 Usage
Uses
Used in Chemical Industry:
1,3-Dichloro-5,5-dimethylhydantoin is used as a chlorinating agent and disinfectant for its ability to kill or inactivate microorganisms, making it suitable for use in various chemical processes.
Used in Water Treatment:
1,3-Dichloro-5,5-dimethylhydantoin is used as a disinfectant in water treatment to ensure the safety and quality of water supplies by eliminating harmful microorganisms.
Used in Laundry Industry:
1,3-Dichloro-5,5-dimethylhydantoin is used as a laundry bleach, providing effective stain removal and whitening properties for fabrics.
Used in Pharmaceutical Industry:
1,3-Dichloro-5,5-dimethylhydantoin is used as an intermediate in the synthesis of various drugs, contributing to the development of new medications.
Used in Agriculture:
1,3-Dichloro-5,5-dimethylhydantoin is used as an intermediate in the production of insecticides, helping to control pests and protect crops.
Used in Polymer Industry:
1,3-Dichloro-5,5-dimethylhydantoin is used as a polymerization catalyst, promoting the formation of polymers and improving the efficiency of the process.
Used in Industrial Bleaching:
Dantoin(R) DCDMH and Dantoin(R) DCDMH LD (low dust) are industrial bleaching agents based on dimethyl hydantoin, finding application wherever solid bleach is desired, such as in the production of paper, textiles, and other materials.
Air & Water Reactions
Sensitive to exposure to light, air, and moisture. Reacts with water or steam to produce toxic and corrosive fumes.
Reactivity Profile
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.
Fire Hazard
Flash point data for 1,3-Dichloro-5,5-dimethylhydantoin are not available. 1,3-Dichloro-5,5-dimethylhydantoin is probably combustible.
Safety Profile
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.
Potential Exposure
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).
Shipping
UN1479 Oxidizing solid, n.o.s., Hazard Class:
5.1; Labels: 5.1-Oxidizer, Technical Name Required
Purification Methods
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.]
Incompatibilities
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
Check Digit Verification of cas no
The CAS Registry Mumber 118-52-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,1 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118-52:
(5*1)+(4*1)+(3*8)+(2*5)+(1*2)=45
45 % 10 = 5
So 118-52-5 is a valid CAS Registry Number.
InChI:InChI=1/C5H6Cl2N2O2/c1-5(2)3(10)8(6)4(11)9(5)7/h1-2H3
118-52-5Relevant articles and documents
A medicine intermediate two chlorine seas because green synthetic method (by machine translation)
-
Paragraph 0016; 0018-0036, (2018/09/20)
The present invention discloses a pharmaceutical intermediate two chlorine seas because green synthetic method, in order to ethyl acetate and tetrahydrofuran as organic medium, 5, 5 - dimethyl hydantoin, liquid chlorine with nanometer [...] Ga/Al composite solid alkali as raw materials through the reflux condensation, magnetic stirring, microwave reactor after processing by the received medicine intermediate two chlorine seas; the invention adopts a unique [...] nanometer Ga/Al composite solid base to the synthesis of pharmaceutical intermediates because two chlorine seas, the operation is simple, the raw material is relatively easy to obtain, by adding [...] nanometer Ga/Al composite solid alkali, effectively improving the reaction rate, to reduce the occurrence of side reactions, in the course of synthesis, is conducive to the smooth progress of the reaction, the reaction towards the direction of the expected, convenient to obtain the target product pharmaceutical intermediates because two chlorine seas. (by machine translation)
A simple and expedient method for the preparation of N-chlorohydantoins
Whitehead, Daniel C.,Staples, Richard J.,Borhan, Babak
supporting information; experimental part, p. 656 - 658 (2011/02/27)
A simple and efficient methodology for the preparation of N-chlorinated hydantoins is presented. These versatile chlorenium sources were isolated in high yield after a simple recrystallization. Among the ten examples are the first chiral N-chlorohydantoins.
Liquid deodorant killing microorganism and method of microorganism-killing deodorization
-
, (2008/06/13)
The object of the present invention is to provide a microbicidal deodorant in a tractable liquid form that has excellent long-term storage stability. The microbicidal deodorant of the present invention comprises: at least one substance selected from the group consisting of halogenated dialkyl hydantoins represented by general formula (1) and halogenated succinimides represented by general formula (2); and at least one substance selected from the group consisting of tetrahydrothiophene 1,1-dioxide, 3-methyltetrahydrothiophene 1,1-dioxide, and 2,5-dihydrothiophene 1,1-dioxide.
Antibacterial and antifungal polyacetal resin composition
-
, (2008/06/13)
Antibacterial and antifungal polyacetal resin compositions include a polyacetal base resin, and an antibacterial and/or antifungal effective amount between about 0.1 to about 5 parts by weight, per 100 parts by weight of the polyacetal base resin, of at least one antibacterial and antifungal agent which contains a metal ion selected from among silver, copper and zinc ions.
