MONOCHLOROACETIC ACID
| CAS # | 79-11-8 |
|---|---|
| Formula |
C₂ClH₃O₂ |
| Synonyms |
Chloroacetic acid |
| Physical description | Colorless solution of the white crystalline solid. | ||
|---|---|---|---|
| Boiling point | Molecular weight | 94.5 | |
| Freezing point/melting point | Vapor pressure | ||
| Flash point | 259°F | Vapor density | |
| Specific gravity | 1.328 | Ionization potential | |
| Lower explosive limit (LEL) | 8% | 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 | |||
| Analyte code (IMIS no.) | M145 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | Silica gel tube (100/50 mg) [SKC 226-47-01] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 1-100 L |
||
| Sampling flow rate (TWA)* | 0.05-0.2 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | IC | ||
| Method reference | NIOSH 2008 (fully validated) | ||
| Notes |
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| Special requirements |
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* 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.
| Wipe Sampler/Sampling media |
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|---|---|
| Bulk Method |
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| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
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Sampling information (see manufacturer instructions) |
|
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 |
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|---|---|---|---|---|---|---|---|
| PEL-TWA |
|
REL-TWA |
|
TLV-TWA |
0.5 ppm (inhalable fraction and vapor) [2005] |
PEL-TWA |
|
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
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| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
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| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
Y |
Skin notation |
NA |
|
Notes:
Not established |
Notes:
Not established |
Notes:
|
Notes:
Not established |
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| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: TLV-A4 |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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Additional Resources and Literature References
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NOAA: CAMEO Chemicals - Chloroacetic acid, solution NIOSH: Pocket Guide to Chemical Hazards - Chloroacetic acid, solution Literature References
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Last Updated Date : 01/05/2021