Label abbreviations descriptions

FORMAMIDE

Chemical Identification
CAS # 75-12-7
Formula

CH₃NO
Synonyms
 

carbamaldehyde; methanamide

Physical Properties
Physical description Colorless, oily liquid with a light ammonia-like odor.
Boiling point 411°F (decomposes) Molecular weight 45.04
Freezing point/melting point 37°F Vapor pressure 3 mmHg at 86°F, 760 mmHg at 410.9°F
Flash point 310°F (open-cup) Vapor density 1.56
Specific gravity 1.13 Ionization potential 10.20 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 1
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1292
Sampling group
Sampler/Sampling media Silica gel tube (150/75 mg) [SKC 226-10]
Sampling time*

100 min TWA; 15 min STEL
Sampling volume (TWA)*

10 L
Sampling flow rate (TWA)*

0.1 L/min
Sampling volume (STEL/Peak/C)*

1.5 L
Sampling flow rate (STEL/Peak/C)*

0.1 L/min
Analytical method instruments GC-FID
Method reference
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
 

 
Bulk Method
 

 

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

20 ppm (30 mg/m3)

 REL-TWA
 

10 ppm (15 mg/m³)

 TLV-TWA
 

10 ppm [1985]

 PEL-TWA
 

10 ppm (18 mg/m³)
PEL-STEL

30 ppm (45 mg/m3)

 REL-STEL
 

 

 TLV-STEL
 

 

 PEL-STEL
 

 
PEL-C
 

 

 REL-C
 

 

 TLV-C
 

 

 PEL-C
 

 
Skin notation
 

NA

 Skin notation
 

Y

 Skin notation
 

Y

 Skin notation
 

Y
Notes:
 

Not established

 Notes:
 

 

 Notes:
 

 

 Notes:
 

 
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed Notes:
 

 
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References

Last Updated Date : 10/28/2024