PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dichloroamine; (Chlorimide) | 3400-09-7 |
4.00
3.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| Cl2.H.N | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 85.92 | L | 1.2 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.047 | 0.52 | 3.1 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.17 | 1.8 | 11 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for dichloroamine. Dichlorimide and trichloramine are two of the three forms of chloramines; as such, available acute toxicity data for trichloramine (NCl3, CASRN: 10025-85-1) was evaluated for TEEL development (Section 3.4.6). Analysts selected a rat LC50 as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (trichloramine, CASRN: 10025-85-1; 112 ppm/1H)
This review generated TEEL values inconsistent with Rev. 29A. The Rev. 29A TEEL-2 was derived from a rat TDLo not identified during the review. The Rev. 29A TEEL-3 was derived from this TEEL-2. The current TEEL-3 is a rat LC50 for a similar chemical (Section 3.4.6). The TEEL-2 was derived from this TEEL-3. The Rev. 29A and current TEEL-1 use the same methodology, with differences due to the change in TEEL-2.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (trichloramine, CASRN: 10025-85-1; 112 ppm/1H)
This review generated TEEL values inconsistent with Rev. 29A. The Rev. 29A TEEL-2 was derived from a rat TDLo not identified during the review. The Rev. 29A TEEL-3 was derived from this TEEL-2. The current TEEL-3 is a rat LC50 for a similar chemical (Section 3.4.6). The TEEL-2 was derived from this TEEL-3. The Rev. 29A and current TEEL-1 use the same methodology, with differences due to the change in TEEL-2.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Chlorimide.
Chloramines information: https://www.vdh.virginia.gov/environmental-health/public-health-toxicology/chloramines/
Rat LC50 (trichloroamine). American Industrial Hygiene Association Journal., 44(145), 1983 [PMID:6837441]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/61437