Jun 13 2014
Acetamide was named after the chemical compound it stands for - acetic acid amide. Acetamide is the common, short name of this compound. It was discovered in 1974.
Properties of Acetamide
The following are the key properties of acetamide:
- Cell Data
- Space group: R3c (synthetic)
- a = 11.44 (3)
- c = 13.50 (3)
- Z = 18
- Crystal Data
- Hexagonal
- Point group: 3m
- Prismatic
- 5mm, with prominent {1120}
- As small stalactites, and in granular aggregates
- X-ray powder pattern: 5.7 (100), 3.54 (91), 2.86 (78), 3.32 (30), 2.17 (14), 3.98 (9), 3.83 (9)
- Chemical Composition
| Elements |
Content 1 |
| H |
8.53 |
| C |
40.67 |
| N |
23.71 |
| O |
27.09 |
| Total |
100.00 |
- Optical Properties
- Transparent
- Optical class: Uniaxial (–)
- ω = 1.495(2)
- ε = 1.460(2)
- Estimated Properties
| Electron density |
Bulk density (electron density) = 1.25 g/cm3
note: Specific gravity of acetamide = 1.15 g/cm3. |
| Photoelectric |
PEAcetamide = 0.23 barns/electron
U = PEAcetamide x ρelectron density = 0.29 barns/cm3 |
| Fermion index |
Fermion index = 0.24
Boson index = 0.76 |
Radioactivity
|
Acetamide is not radioactive
|
How to Identify Acetamide
Acetamide can be identified in the field by its transparent to translucent, colorless or gray variations.
The density of acetamide is 1.17 g/cm3, with a hardness of 1 to 1.5 - approximate to talc or a slightly harder substance. Acetamide has a white streak.
Global Distribution
Acetamide is distributed in the following places:
- Ukraine - From near Chervonograd, L’vov-Volyn’ coal basin
- USA - At Shamokin, near Burnside, Northumberland Co. Pennsylvania
Occurrence of Acetamide and Useful Mineral Association
Acetamide occurs in burning waste coal piles, formed between 50 and 150°C (122-302°F).
References