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Chemical Sampling Information
1,3-Dichloro-5,5-dimethyl hydantoin
 Field Definitions
 Analytical Methods
General Description

NAME: 1,3-Dichloro-5,5-dimethyl hydantoin

SYNONYM(s): Halane; Dactin

IMIS: 0872

CAS: 118-52-5

NIOSH: RTECS MU0700000

DESCRIPTION:

White solid with a chlorine-like odor.
MW: 197
MP: 266 F



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

Exposure Limits

OSHA GENERAL INDUSTRY PEL: 0.2 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 0.2 mg/m3 TWA

ACGIH TLV: 0.2 mg/m3 TWA; 0.4 mg/m3 STEL

NIOSH REL: 0.2 mg/m3 TWA, 0.4 mg/m3 STEL

Health Factors

SYMPTOM(s): Eye, mucous membrane, and respiratory system irritation

HEALTH EFFECTS: Irritation-Eye, Nose, Throat, Skin---Marked (HE14)

ORGAN: Respiratory system, eyes

Monitoring

Revision Date: 08/24/1992
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