Uranyl Potassium Carbonate MSDS

Uranyl Potassium Carbonate MSDS

Formula UO2(CO3)·2K2CO3
Structure
Description An odorless to chalky smelling orange-yellow sand-like solid in its
pure crystalline form.
Uses
Registry Numbers and Inventories.
CAS
NIH PubChem CID
EC (EINECS/ELINCS)
Merck
Beilstein/Gmelin
Canada DSL/NDSL
US TSCA Listed
Austrailia AICS Listed
Properties.
Formula
UO2(CO3)*2K2CO3
Formula mass 606 MW
Density 5.6
Hazards and Protection.
Storage Protect from physical damage. Store at in cool, dry
place. Protect personnel from radiation emanation if present. Separate from
other readily oxidizable or combustible materials.
Handling All chemicals should be considered hazardous. Avoid
direct physical contact. Use appropriate, approved safety equipment.
Untrained individuals should not handle this chemical or its container.
Handling should occur in a chemical fume hood.
Protection Approved dust respirator self contained breathing apparatus; goggles
or face shield; protective clothing.
Respirators Use NIOSH/MSHA approved respirator appropriate for exposure of
concern.
Small spills/leaks Evacuate area and ventilate. Wear protective equipment. If required,
use an inert absrobent. Sweep up and place in an appropriate container for
disposal. Wash contaminated surfaces.
Stability No data.
Incompatibilities Can react with reducing agents to generate heat and products that may
be gaseous (causing pressurization of closed containers) Can react violently
with active metals, cyanides, esters, and thiocyanates.
Fire.
Fire fighting Use appropriate media to suppress exposure fire. Contain
runoff.
Health.
Exposure limit(s) OSHA: PEL (8 h TWA): 0.05 mg
Exposure effects Supralethal radiation doses may result in headache, acute brain
syndrome, alterations in mental status including coma, and (rarely) seizures
within minutes of exposure. Prenatal ionizing radiation exposure may cause
congenital anomalies, mental retardation, and an increased incidence of
seizures.
Ingestion Gastrointestinal syndrome (nausea/vomiting) commonly occurs after
doses of 9 to 20 gy and may occur following doses as low as 5 gy. Initial
vomiting is followed by persistent diarrhea, which may be bloody.
Inhalation Pulmonary radiation injury may result in radiation pneumonitis and
radiation pulmonary fibrosis.
Skin Thermonuclear burns may occur. If erythema is produced by a
penetrating radiation, serious systemic injury is certain.
First aid  
Ingestion Seek medical attention. If individual is drowsy or unconscious, do
not give anything by mouth; place individual on the left side with the head
down. Contact a physician, medical facility, or poison control center for
advice about whether to induce vomiting. If possible, do not leave
individual unattended.
Inhalation Monitoring exposed patients for contamination and decontamination
procedures should be started. All personnel involved in handling patients
should wear disposable protective clothing. The patient should be completely
undressed and given a soap and water bath or shower (if the patient’s
condition permits and if the facility exists). Acute inhalation of
radionuclides presents some difficult problems.
Skin Remove contaminated clothing. Wash exposed area with soap and water.
If symptoms persist, seek medical attention. Launder clothing before reuse.
Eyes If symptoms develop, immediately move individual away from exposure
and into fresh air. Flush eyes gently with water for at least 15 minutes
while holding eyelids apart; seek immediate medical attention.
Transportation
USCG CHRIS Code URS

 


Uranium potassium carbonate

Systematic name

Uranium potassium carbonate

Other names

Uranyl Potassium Carbonate

Molecular formula


UO2(CO3)*2K2CO3

Molar mass

606 g/mol

Density

x.xxx g/cm3

Solubility (water)

x.xxx g/l

Melting point

xx.x °C

Boiling point

xx.x °C

CAS number

[xx-xx-xx]

Disclaimer and
references

Uranium like other actinides readily forms a dioxide
uranyl core (UO2). In the environment, this uranyl core readily
complexes with carbonate to form charged complexes. Although uranium forms
insoluble solids or adsorbs to mineral surfaces at alkaline pH it is these
soluble carbonate complexes that increase its solubility, availability, and
mobility with low affinities to soil. Uranium(VI) generally forms a
pH-dependent suite of uranyl-carbonate complexes in ground water solutions:


  • UO2(OH)2+1

  • UO2(CO3)2-2

  • UO2(CO3)3-4

  • UO2(CO3)(OH)3-1

A common method for concentrating uranium from a
solution uses solutions of uranyl carbonates which are passed through a
resin bed where the complex ions are transferred to the resin by ion
exchange with a negative ion-like chloride. After buildup of the uranium
complex on the resin, the uranium is eluted with a salt solution and the
uranium is precipitated in another process.

The uranyl carbonate minerals

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Uranyl-carbonate complexes form a large class of
mineral species. Several have been described in literature. These include:


  • Andersonite (Hydrated Sodium Calcium Uranyl Carbonate)

  • Astrocyanite-(Ce) (Hydrated Copper Cerium Neodymium Lanthanum Praseodymium
    Samarium Calcium Yttrium Uranyl Carbonate Hydroxide)

  • Bayleyite (Hydrated Magnesium Uranyl Carbonate)

  • Bijvoetite-(Y) (Hydrated Yttrium Dysprosium Uranyl Carbonate Hydroxide)

  • Fontanite (Hydrated Calcium Uranyl Carbonate)

  • Grimselite (Hydrated Potassium Sodium Uranyl Carbonate)

  • Joliotite (Hydrated Uranyl Carbonate)

  • Liebigite (Hydrated Calcium Uranyl Carbonate)

  • McKelveyite (Hydrated Barium Sodium Calcium Uranium Yttrium Carbonate)

  • Metazellerite (Hydrated Calcium Uranyl Carbonate)

  • Rabbittite (Hydrated Calcium Magnesium Uranyl Carbonate Hydroxide)

  • Roubaultite (Copper Uranyl Carbonate Oxide Hydroxide)

  • Rutherfordine (Uranyl Carbonate)

  • Schrokingerite (Hydrated Sodium Calcium Uranyl Sulfate Carbonate Fluoride)

  • Shabaite (Hydrated Copper Cerium Neodymium Lanthanum Praseodymium Samarium
    Calcium Yttrium Uranyl Carbonate Hydroxide)

  • Sharpite (Hydrated Calcium Uranyl Carbonate Hydroxide)

  • Swartzite (Hydrated Calcium Magnesium Uranyl Carbonate)

  • Voglite (Hydrated Calcium Copper Uranyl Carbonate)

  • Wyartite (Hydrated Calcium Uranyl Carbonate Hydroxide)

  • Widenmannite (Lead Uranyl Carbonate)

  • Zellerite (Hydrated Calcium Uranyl Carbonate)

  • Znucalite (Hydrated Calcium Zinc Uranyl Carbonate Hydroxide)


Rutherfordine

Rutherfordine is a mineral containing almost pure
uranium carbonate (UO2CO3). It was discovered in 1906 and
is named after Ernest Rutherford. It is found primarily in the Morogoro Region
of Tanzania in Africa. It has been reported in Zaire and the Northern Territory
of Australia. It appears as brownish, brownish yellow, white, light brown
orange, or light yellow fluorescent encrustations. It is a secondary alteration
product from uraninite. It crystallizes in the orthorhombic system in
translucent lathlike, elongated, commonly radiating in fibrous masses,
inpulverulent, earthy to very fine-grained dense masses. It has a specific
gravity of 5.7 and exhibits two directions of cleavage. It is also known as
diderichite.
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Rutherfordine forms under acidic to neutral pH and is the
only known mineral that contains only uranyl and carbonate. It was discovered by
Marckwald (1906) and described as a mineral species by Frondel and Meyrowitz
(1956). The structure of rutherfordine was provided by Christ and Clark (1955)
and refined by Finch et al.(1999). As a carbonate, rutherfordine will react with
acids, liberating carbon dioxide.

References

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  • Palache, C., H. Berman, and C. Frondel (1951) Dana’s system of mineralogy, 7th
    ed., v. II, pp. 274–275.

  • Webmineral data

  • Mindat with location data

  • Uranium minerals
  •  

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