Label abbreviations descriptions

MALATHION†

Chemical Identification
CAS # 121-75-5
Formula

C₁₀H₁₉O₆PS₂
Synonyms

S-[1,2-bis(ethoxycarbonyl) ethyl]O,O-dimethyl-phosphorodithioate; diethyl (dimethoxyphosphinothioylthio) succinate

Physical Properties
Physical description Deep-brown to yellow liquid with a garlic-like odor.
Boiling point 140°F (decomposes) Molecular weight 330.4
Freezing point/melting point 37.1°F Vapor pressure 0.00004 mmHg
Flash point >325°F (open-cup) Vapor density
Specific gravity 1.234 at 77°F Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1616
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*

60 min
Sampling volume (TWA)*

60 L
Sampling flow rate (TWA)*

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

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

1 L/min
Analytical method instruments GC-FPD
Method reference OSHA 62 (fully validated)
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
 

Wipe with GFF (37 mm), Type A/E [AP4003705]
Bulk Method
 

Limit the amount of bulk submitted to 1 g or 1 mL.

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
 

15 mg/m³ (total dust)

 REL-TWA
 
 

10 mg/m³

 TLV-TWA
 
 

1 mg/m³ (inhalable fraction and vapor) [2000]

 PEL-TWA
 
 

10 mg/m³
PEL-STEL
 

 

 REL-STEL
 
 

 

 TLV-STEL
 
 

 

 PEL-STEL
 
 

 
PEL-C
 

 

 REL-C
 
 

 

 TLV-C
 
 

 

 PEL-C
 
 

 
Skin notation
 
 

Y

 Skin notation
 
 

Y

 Skin notation
 
 

Y

 Skin notation
 
 

Y
Notes:
 
 

See 29 CFR 1910.1000 Table Z-1.

 Notes:
 
 

 

 Notes:
 
 

BEI®

 Notes:
 
 

 
Health factors:  See NIH-NLM PubChem. IDLH
 
 

250 mg/m³
Carcinogenic classifications: IARC-3, TLV-A4 Notes:
 
 

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

 

Additional Resources and Literature References

Last Updated Date : 01/28/2021