| Melting point |
68-71 °C(lit.) |
| Boiling point |
136-138 °C10 mm Hg(lit.) |
| bulk density |
500-550kg/m3 |
| Density |
1.01 |
| vapor pressure |
<0.01 mm Hg ( 20 °C) |
| refractive index |
1.4935 |
| FEMA |
4235 | 1,6-HEXALACTAM |
| Flash point |
152 °C |
| storage temp. |
Store below +30°C. |
| solubility |
H2O: 0.1 g/mL, clear, colorless |
| form |
Crystals or Flakes |
| pka |
16.61±0.20(Predicted) |
| color |
White |
| Specific Gravity |
1.042 (20/4℃) |
| Odor |
amine spicy |
| PH |
7.0-8.5 (333g/l, H2O, 20℃) |
| explosive limit |
1.4-8%(V) |
| Odor Type |
spicy |
| Water Solubility |
4560 g/L (20 ºC) |
| Merck |
14,1761 |
| JECFA Number |
1594 |
| BRN |
106934 |
| Henry's Law Constant |
1.8×105 mol/(m3Pa) at 25℃, HSDB (2015) |
| Exposure limits |
ACGIH: TWA 5 mg/m3
NIOSH: TWA 1 mg/m3; TWA 0.22 ppm; STEL 3 mg/m3; STEL 0.66 ppm |
| Dielectric constant |
1.7 - 1.9（0.0℃） |
| InChI |
1S/C6H11NO/c8-6-4-2-1-3-5-7-6/h1-5H2,(H,7,8) |
| InChIKey |
JBKVHLHDHHXQEQ-UHFFFAOYSA-N |
| SMILES |
O=C1CCCCCN1 |
| LogP |
0.12 at 25℃ |
| CAS DataBase Reference |
105-60-2(CAS DataBase Reference) |
| IARC |
3 (Vol. 39, Sup 7, 71) 1999 |
| NIST Chemistry Reference |
Caprolactam(105-60-2) |
| EPA Substance Registry System |
Caprolactam (105-60-2) |
