ChemicalBook > CAS DataBase List > 1,3-Dichloro-5,5-dimethylhydantoin

1,3-Dichloro-5,5-dimethylhydantoin

Product Name
1,3-Dichloro-5,5-dimethylhydantoin
CAS No.
118-52-5
Chemical Name
1,3-Dichloro-5,5-dimethylhydantoin
Synonyms
DCDMH;hydan;DACTIN;daktin;halane;DANTOIN;omchlor;NSC 33307;NSC 38630;nci-c03054
CBNumber
CB3103672
Molecular Formula
C5H6Cl2N2O2
Formula Weight
197.02
MOL File
118-52-5.mol
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1,3-Dichloro-5,5-dimethylhydantoin Property

Melting point:
132-134 °C (lit.)
Boiling point:
214.7±23.0 °C(Predicted)
Density 
1,5 g/cm3
refractive index 
1.5720 (estimate)
Flash point:
171 °C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
water: soluble0.21% at 25°C(lit.)
form 
Crystalline Powder
pka
-3.44±0.40(Predicted)
color 
White
PH
4.4 (H2O)(HSDB)
Water Solubility 
0.21 g/100 mL (25 ºC)
Sensitive 
Moisture Sensitive
Merck 
14,3065
Sublimation 
100 ºC
BRN 
146013
Exposure limits
NIOSH REL: TWA 0.2, STEL 0.4, IDLH 5; OSHA PEL: TWA 0.2, STEL/C 0.4 (adopted).
Stability:
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
CAS DataBase Reference
118-52-5(CAS DataBase Reference)
EPA Substance Registry System
1,3-Dichloro-5,5-dimethylhydantoin (118-52-5)
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Safety

Hazard Codes 
Xn,C,O,N
Risk Statements 
22-36/37/38-34-8-50-43-31-20/21/22
Safety Statements 
26-36-45-36/37/39-17-61
RIDADR 
UN 1479 5.1/PG 2
WGK Germany 
3
RTECS 
MU0700000
TSCA 
Yes
HazardClass 
5.1
PackingGroup 
II
HS Code 
29332100
Hazardous Substances Data
118-52-5(Hazardous Substances Data)
Toxicity
LD50 oral in rabbit: 1520mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H272May intensify fire; oxidizer

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P220Keep/Store away from clothing/…/combustible materials.

P221Take any precaution to avoid mixing with combustibles/…

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P310Immediately call a POISON CENTER or doctor/physician.

P391Collect spillage. Hazardous to the aquatic environment

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
232807
Product name
1,3-Dichloro-5,5-dimethylhydantoin
Purity
available chlorine 68 %
Packaging
250g
Price
$52.7
Updated
2021/03/22
Sigma-Aldrich
Product number
232807
Product name
1,3-Dichloro-5,5-dimethylhydantoin
Purity
available chlorine 68 %
Packaging
1kg
Price
$98.9
Updated
2021/03/22
TCI Chemical
Product number
D1783
Product name
1,3-Dichloro-5,5-dimethylhydantoin
Purity
>97.0%(T)
Packaging
25g
Price
$13
Updated
2021/03/22
TCI Chemical
Product number
D1783
Product name
1,3-Dichloro-5,5-dimethylhydantoin
Purity
>97.0%(T)
Packaging
100g
Price
$18
Updated
2021/03/22
Alfa Aesar
Product number
A12718
Product name
1,3-Dichloro-5,5-dimethylhydantoin, 98%
Packaging
100g
Price
$19.8
Updated
2021/03/22
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1,3-Dichloro-5,5-dimethylhydantoin Chemical Properties,Usage,Production

Chemical Properties

DCDMH is a combustible, white powder. Chlorine-like odor.

Physical properties

White powder or four-sided crystals from chloroform with a chlorine-like odor. Aqueous solutions are acidic.

Uses

Chlorinating agent; disinfectant; laundry bleach; in water treatment; intermediate for drugs; insecticides; polymerization catalyst

Uses

Dantoin(R) DCDMH is an industrial bleaching agent based on dimethyl hydantoin. This product finds application wherever solid bleach is desired.

Uses

Dantoin(R) DCDMH LD (low dust) is an industrial bleaching agent based on dimethyl hydantoin. This product finds application wherever solid bleach is desired.

Definition

Methionine hydroxy analog c. 90%.

General Description

White powder with a weak chlorine odor. Conflagrates at 414°F (turns brown). Chlorine gas evolves > 410°F.

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

1,3-Dichloro-5,5-dimethylhydantoin Preparation Products And Raw materials

Raw materials

Preparation Products

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1,3-Dichloro-5,5-dimethylhydantoin Suppliers

Hubei XinghengKang Chemical Technology Co., Ltd.
Tel
027-88878869-
Fax
027-88878869
Email
xhkhu2014@163.com
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China
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Weifang YuKai Chemical Co., Ltd.
Tel
536-8865335
Fax
86-536-5310398
Email
sophia@kaihongchem.com
Country
China
ProdList
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J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
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96500
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3B Pharmachem (Wuhan) International Co.,Ltd.
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821-50328103-801
Fax
86-21-50328109
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3bsc@sina.com
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China
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future industrial shanghai co., ltd
Tel
400-0066-400;021-60496031
Fax
021-55660885
Email
sales@jonln.com;sales@jonln.com
Country
China
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Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
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China
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TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386 / 800-988-0390
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
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24555
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Beijing dtftchem Technology Co., Ltd.
Tel
13651141086; 86(10)60275028、60275820
Fax
86 (10) 60270825
Email
dtftchem@sina.com
Country
China
ProdList
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BeiJing Hwrk Chemicals Limted
Tel
0757-86329057-
Fax
0757-86311057
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sales.gd@hwrkchemical.com
Country
China
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17295
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Energy Chemical
Tel
021-58432009-
Fax
021-58436166
Email
sales8178@energy-chemical.com
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China
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View Lastest Price from 1,3-Dichloro-5,5-dimethylhydantoin manufacturers

Zhuozhou Wenxi import and Export Co., Ltd
Product
1,3-Dichloro-5,5-dimethylhydantoin 118-52-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
1,3-Dichloro-5,5-dimethylhydantoin 118-52-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09
Zhuozhou Wenxi import and Export Co., Ltd
Product
1,3-Dichloro-5,5-dimethylhydantoin available chlorine 68 % 118-52-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27

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