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Chemical Sampling Information
Xylidine
 Field Definitions
 Analytical Methods
 Health Guidelines
General Description

NAME: Xylidine

SYNONYM(s): 2,4-Dimethylaniline; 2,4-Dimethylaminobenzene; Aminodimethylbenzene; 2,4-Xylidine; 2,5-Xylidine; (there are 6 isomers for Xylidine)

IMIS: 2600

CAS: 1300-73-8

Other CAS: 95-68-1; 95-78-3

NIOSH: RTECS ZE8575000; 88480

DOT: UN1711 Poison

DESCRIPTION:

Pale yellow to brown liquid with a weak, aromatic amine odor.
MW: 121
BP: 415 to 439 F
VP: <1 mm

INCOM: Strong oxidizers, hypochlorite bleaches

Exposure Limits

OSHA GENERAL INDUSTRY PEL: 5 ppm, 25 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 5 ppm, 25 mg/m3 TWA (Skin)

ACGIH TLV: 0.5 ppm TWA (Inhalable Fraction) (Vapor and Aerosol) (Skin); Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans) (mixed isomers); BEI

NIOSH REL: 2 ppm TWA (Skin)

Health Factors

IARC: Group 3, not classifiable as to its carcinogenicity to humans (2,4-Xylidine and 2,5-Xylidine)

SYMPTOM(s): Anoxia, cyanosis; lung, liver, kidney damage

HEALTH EFFECTS: Methemoglobinemia (HE13); Acute systemic toxicity (HE4)

ORGAN: Blood, lungs, liver, kidneys, CVS

Monitoring

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):



MEDIA: Silica Gel Tube (150/75 mg sections, 20/40 mesh)
MAX V: 30 Liters   MAX F: 0.2 L/min
ANL 1: Gas Chromatography; GC/FID
REF: 1 (NIOSH 2002)
CLASS: Fully Validated

SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):

MIRAN 1A &1B: 0.2 ppm @ 7.2 um


Revision Date: 04/01/2002
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