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Chemical Sampling Information (CSI)
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General Description

Synonyms: Halane; Dactin

OSHA IMIS Code Number: 0872

Chemical Abstracts Service (CAS) Registry Number: 118-52-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: MU0700000

NIOSH Pocket Guide to Chemical Hazards, 1,3-Dichloro-5,5-dimethylhydantoin: chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:

white solid with a chlorine-like odor
molecular weight: 197
melting point: 266°F

Incompatibilities: Water, strong acids, easily oxidized materials, such as ammonia salts, sulfides, etc.

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 0.2 mg/m3

Construction Industry: 0.2 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.2 mg/m3 TWA; 0.4 mg/m3 STEL

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.2 mg/m3 TWA, 0.4 mg/m3 STEL

Health Factors

Potential Symptoms: Eye, mucous membrane, and respiratory system irritation

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14)

Affected Organs: Respiratory system, eyes

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