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Americium

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Identification
Molecular formula
Am
CAS number
7440-35-9
IUPAC name
americium
State
State

At room temperature, americium is a solid metal. It exhibits typical metallic properties and is usually stored in special containers to prevent its radioactive decay from causing exposure.

Melting point (Celsius)
1 176.00
Melting point (Kelvin)
1 449.00
Boiling point (Celsius)
2 607.00
Boiling point (Kelvin)
2 880.00
General information
Molecular weight
243.06g/mol
Molar mass
243.0610g/mol
Density
13.6700g/cm3
Appearence

Americium is a silvery-white metal whose surface slowly tarnishes in air. It is not as ductile as other actinides but can be easily cut with a knife.

Comment on solubility

Solubility of Americium Compounds

The solubility of americium (Am) compounds varies significantly depending on their chemical form and the environmental conditions. Generally, americium is a member of the actinide series, and like other actinides, it exhibits unique solubility behaviors. Here are some key points regarding the solubility of americium:

  • Americium(III) salts: These compounds, such as americium(III) chloride (AmCl3), are known to be soluble in water. Their solubility is influenced by factors like temperature and the presence of complexing agents.
  • Americium oxide: Americium(IV) oxide (AmO2) is generally insoluble in water, which can make chemical handling and separation processes complex.
  • pH Dependence: The solubility of americium compounds can be highly pH-dependent. In acidic environments, certain americium salts become more soluble, while in neutral or basic conditions, they tend to precipitate.
  • Complexation: The presence of ligands can enhance solubility. For instance, americium may form soluble complexes with organic acids or chelating agents, thus altering its effective concentration in solution.

In summary, the solubility of americium compounds is a multifaceted topic influenced by their oxidation states, pH levels, and chemical interactions. Understanding these factors is crucial for applications in nuclear chemistry and environmental science.

Interesting facts

Interesting Facts About Americium

Americium, a synthetic element with the symbol Am, is a fascinating member of the actinide series. It was first isolated in 1944 by a team of scientists, including Glenn T. Seaborg, who famously said, "We knew we had come upon something extraordinary." Here are some intriguing aspects of americium:

  • Discovery and Origin: Americium was named after the Americas, reflecting its significance as the first element discovered on the continent.
  • Isotopes: The most notable isotope, 241Am, has a half-life of 432 years, making it useful in various applications.
  • Applications: Americium is widely used in smoke detectors, as the alpha particles emitted help detect the presence of smoke particles effectively.
  • Radiation Source: It serves as a vital source of a radioactive element in scientific research, particularly in neutron sources and as a tracer in radioactive dating.
  • Handling Precautions: Due to its radioactive nature, americium must be handled with care, following strict safety protocols to mitigate radiation exposure.

In summary, americium represents a significant achievement in synthetic chemistry and continues to play a crucial role in advanced technologies. Its intriguing history and practical applications highlight the wonders of scientific exploration and the continuous quest for knowledge.

Synonyms
AMERICIUM
7440-35-9
VW92PHU2UY
Americium, radioactive
AMERICIUM [MI]
EINECS 231-144-4
AMERICIUM, ELEMENTAL
DTXSID3064693
HSDB 7383
Americium 243
DTXCID6047658
(243)Am
231-144-4
Am
Americium Ion
americium atom
Americium(III)
Americium, ion(3+)
UNII-VW92PHU2UY
americio
Amerizium
americium(3+)
95Am
CHEBI:33389
LXQXZNRPTYVCNG-UHFFFAOYSA-N
NS00082273
Q1872
D000576000