NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

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

Respirator Recommendations
Not available.
Important additional information about respirator selection
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