Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
BENZYL CHLORIDE†
| CAS # | 100-44-7 |
|---|---|
| Formula |
C₇H₇Cl |
| Synonyms |
chloromethylbenzene; α-chlorotoluene; benzylchloride anhydrous; benzylchloride, stabilized |
| Physical description | Colorless to slightly yellow liquid with a pungent, aromatic odor. | ||
|---|---|---|---|
| Boiling point | 354°F | Molecular weight | 126.6 |
| Freezing point/melting point | -38°F | Vapor pressure | 1 mmHg |
| Flash point | 153°F | Vapor density | 4.4 |
| Specific gravity | 1.1 | Ionization potential | |
| Lower explosive limit (LEL) | 1.1% | Upper explosive limit (UEL) | |
| NFPA health rating | 3 | NFPA fire rating | 2 |
| NFPA reactivity rating | 1 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0340 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] |
| Sampling time* | 10 L |
| Sampling volume (TWA)* | 0.2 L/min |
| Sampling flow rate (TWA)* | |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | NIOSH 1003 (partially 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.
| Wipe Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | Detector tube | Infrared spectrophotometer |
|---|---|---|
| Model/Type | Gastec 132L | Miran 1A & 1B |
|
Sampling information (see manufacturer instructions) |
0.5-25 ppm range | 2.5 ppm@9.4 µm |
|
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 |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
1 ppm (5 mg/m³) |
REL-TWA | TLV-TWA | PEL-TWA |
0.03 ppm (0.16 mg/m³) |
||
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C |
1 ppm [15 minute] |
TLV-C | PEL-C | |||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: |
Notes:
Visit the ACGIH TLV site for specific data |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
10 ppm |
|||||
| Carcinogenic classifications: IARC-2A, TLV-A3, EPA-B2 | Notes: | ||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
1 ppm/10 ppm/50 ppm |
|||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Benzyl chloride NIOSH: Pocket Guide to Chemical Hazards - Benzyl chloride Literature References
|
Last Updated Date : 04/02/2024