| Agent Name |
Carbon-14 |
|---|
| CAS Number |
14762-75-5 |
|---|
| Formula |
C4 |
|---|
| Major Category |
Physical Agents |
|---|
| Category |
Radionuclides |
|---|
| Description |
Black solid; |
|---|
| Sources/Uses |
Naturally occurring in the earth's atmosphere (transmutation of nitrogen by cosmic rays) and produced by reactor irradiation of calcium nitrate; Used in geology and archeology for carbon dating; [Hawley] Also used in thickness gauges for thin coatings and in medicine as a biochemical tracer (detect breast cancer and study drug metabolism); [Waltar] |
|---|
| Comments |
Half-Life: 5730 years
Effective Half-Life: 12 days
Specific Activity: 4.5 Ci/g
Decay Mode: Beta
Critical Organ: Total body
Internal Toxicity: Moderate
Annual Limit on Intake: 2 mCi
Radiation Energy (MeV): Beta 0.1561 (100%)
[See Glossary for references.] See "Radiation, ionizing."
|
|---|
| Links to Other NLM Databases |
|---|
| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: IONIZING RADIATION
|
|---|
