NIOSH Pocket Guide to Chemical Hazards

Ammonium chloride fume

CAS 12125-02-9

NH4Cl

RTECS BP4550000
Synonyms & Trade Names
Ammonium chloride, Ammonium muriate fume, Sal ammoniac fume
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 10 mg/m3 ST 20 mg/m3
OSHA PEL†: none
IDLH N.D. See: IDLH INDEX Conversion
Physical Description
Finely divided, odorless, white particulate dispersed in air.
MW: 53.5
BP: Sublimes
MLT: 662°F (Sublimes)
Sol: 37%
VP(321°F): 1 mmHg
IP: NA

Sp.Gr: 1.53
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Solid
Incompatibilities & Reactivities
Alkalis & their carbonates, lead & silver salts, strong oxidizers, ammonium nitrate, potassium chlorate, bromine trifluoride [Note: Corrodes most metals at high (i.e., fire) temperatures.]
Measurement Methods
OSHA ID188
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support

Important additional information about respirator selection
Respirator Recommendations Not available.
Exposure Routes inhalation, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; cough, dyspnea (breathing difficulty), pulmonary sensitization
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION   See ICSC CARD: 1051