Nuklida · stabil · alami
Klorin-35 (³⁵Cl)
Klorin-35 (³⁵Cl) adalah isotop stabil klorin dengan 17 proton dan 18 neutron (nomor massa 35). Kelimpahan alaminya [0.755, 0.761].
Data nuklida
- Unsur
- Klorin (Cl, Z = 17)
- Nomor massa (A)
- 35
- Proton (Z)
- 17
- Neutron (N)
- 18
- Massa atom
- 34.968852694 ± 0.000000038 u
- Waktu paruh
- Stabil
- Mode peluruhan
- Tidak meluruh
- Kelimpahan alami
- [0.755, 0.761]
- Tahun penemuan
- 1919
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop klorin
- Analyses of chlorine isotopes and other environmental tracers can help to identify whether an environmental contaminant is of anthropogenic origin or naturally occurring. For example, perchlorate (ClO4 -) can be of anthropogenic origin and is also found naturally. Perchlorate is a widespread groundwater contaminant that can interfere with hormone production in the thyroid gland by displacing iodide. Both the stable chlorine isotope-amount ratio n(37Cl)/n(35Cl) and the mole fraction of 36Cl, n(36Cl)/n(Cl), can provide useful information about origins of perchlorate in the environment (Fig. IUPAC.17.2). Such information may be important for legal reasons and for remediation of contaminated areas,.
- Radioactive 36Cl provides a useful tool to determine ages in geology and hydrology. Some radioactive 36Cl is cosmogenic and enters the terrestrial environment in precipitation. Because of its long half-life of 3.01×105 years, the level of 36Cl in aquifers can be measured and used to estimate ages (on the order of 105 to 106 years) of old meteoric groundwater (water that was originally precipitation). Thermonuclear bomb tests in the ocean produced large amounts of 36Cl by neutron reactions with 35Cl in seawater. This was especially prevalent in the late 1950s. Large amounts of this anthropogenic 36Cl were distributed throughout the atmosphere, deposited with precipitation, and incorporated into terrestrial soils and groundwater. This enriched 36Cl has been used as a tracer of meteoric water from that era.
Isotop klorin lainnya
²⁸Cl, ²⁹Cl, ³⁰Cl, ³¹Cl, ³²Cl, ³³Cl, ³⁴Cl, ³⁶Cl, ³⁷Cl, ³⁸Cl, ³⁹Cl, ⁴⁰Cl, ⁴¹Cl, ⁴²Cl, ⁴³Cl, ⁴⁴Cl, ⁴⁵Cl, ⁴⁶Cl, ⁴⁷Cl, ⁴⁸Cl, ⁴⁹Cl, ⁵⁰Cl, ⁵¹Cl, ⁵²Cl