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Chloroprene
Richard Roček
Jiří Švec
Chloroprene – General information
 Formulas:
 Summar: C4H5Cl
 Functional: CH2=CCl-CH=CH2
 Structural:
 Names
 2-Chloro-1,3-butadiene
 Chloroprene
 Neoprene
 Iternational notation:
 CAS Registry Number: 126-99-8
 EC Registry Number: 204-818-0
Chemical properities
 Properities
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Molecular Formula of monomer = C4H5Cl
Formula Weight = 88.5355
Composition
= C (54.26%) H (5.69%) Cl(40.04%)
Molar Volume = 95.9 ± 3.0 cm3
 Industrial production
 Polymerization
Physical properities
 Properities of pure compound
 Density
0.9598 g/cm3,
 Solubility in water: insoluble. 0.2115 g/100 mL
 Melting point:
-130°C -202 F
 Boiling point:
59.4°C 138 F 332.6 K
 Colourless liquid with ether-like smell
 Properities of polymer
 Good mechanical and chemical endurance
 High endurance against ozon and water
 Low flammability
 Adhesive with many materials
Endurance - odolnost
Spectral analysis
Toxicological characteristics
 Exposure limits
 OSHA GENERAL INDUSTRY PEL:
25 ppm, 90 mg/m3 (Skin)
 OSHA CONSTRUCTION INDUSTRY PEL:
25 ppm, 90 mg/m3 TWA (Skin)
 ACGIH TLV:
10 ppm, 36 mg/m3 TWA (Skin)
 NIOSH REL:
1 ppm Ceiling, Potential Carcinogen
 Health factors
 IARC:
 SYMPTOM(s):
 HEALTH EFFECTS:
 ORGAN:
Group 3, not classifiable as to its
carcinogenicity to humans
Eye, respiratory system irritation;
nervousness, irritability; dermatitis,
alopecia; [carcinogenic]
Reproductive Hazard (HE5); Systemic
Toxicity (HE3),Mutagen (HE2)
system, skin, eyes
Use of Chloroprene
The best known are propably wetsuits for
diving or water sports generaly,
which are made of neoprene
(polymerized chloroprene).
wetsuit- neoprén, oblek na vodní sporty
Use of neoprene
Becouse of its high mechanical and chemical endurance
lot of common things are made of neoprene. Such as gaskets,
corrosion-resistant coatings, electrical insulation, hoses and very
important are also
various medical utilities
Gasket –těsnění; coatings – nátěry, povrchy;
electrical insulation – izolace elektrických vodičů; hose - hadice
Use of chloroprene
But chloroprene is also used as a component of various types
of rubbers and modern materials. From mousepads to hi-tech
surfaces of military stealth airplanes, witch „hides“ planes by
reflecting radar waves
Surface – povrch;Stealth – tajný,skrytý
Thanks for your attention