PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phenyl ether; (Diphenyl ether) | 101-84-8 |
15.01
11.01
7.01
8.00
11.00
4.09
4.06
4.10
4.07
3.05
|
||||||||||
| Formula | Synonyms | |||||||||||
| C12.H10.O | DIPHENYL OXIDE, 1,1^-OXYBISBENZENE, BENZENE, PHENOXY-, BIPHENYL OXIDE, CHEMCRYL JK-EB, DIPHENYL ETHER, GERANIUM CRYSTALS, OXYBISBENZENE, PHENOXY BENZENE, PHENOXYBENZENE, PHENYL ETHER, PHENYL OXIDE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 170.22 | S | 259 | 1.0728 @ 20°C | 7000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.0 | 17 | 100 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 14 | 120 | 700 |
Technical Basis
A review of available sources identified the following: a rat oral LD50, TLV-STEL, and IDHL (1990/1994). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The IDLH was selected as the TEEL-3. The TEEL-2 was derived according to Table 3.5. The TLV-STEL was selected as the TEEL-1.
• TEEL-1 = TLV-STEL (2 ppm)
• TEEL-2 = TEEL-3/6
• TEEL-3 = IDLH (1990/1994, 100 ppm)
This review generated TEEL-3 and TEEL-2 values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a rat oral LD50, while the current TEEL-3 is an IDLH, a more preferred source (Table 3.1). The Rev. 29A and current TEEL-2 were derived using the same methodology, with differences due to the change in TEEL-3. The Rev. 29A and current value and source are consistent.
• TEEL-1 = TLV-STEL (2 ppm)
• TEEL-2 = TEEL-3/6
• TEEL-3 = IDLH (1990/1994, 100 ppm)
This review generated TEEL-3 and TEEL-2 values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a rat oral LD50, while the current TEEL-3 is an IDLH, a more preferred source (Table 3.1). The Rev. 29A and current TEEL-2 were derived using the same methodology, with differences due to the change in TEEL-3. The Rev. 29A and current value and source are consistent.
References
https://pubchem.ncbi.nlm.nih.gov/compound/Diphenyl-ether.
https://www.osha.gov/chemicaldata/25
https://www.cdc.gov/niosh/idlh/101848.html