Praseodymium is a Block F, Group 3, Period 6 element. The number of electrons in each of Praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electronic configuration is [Xe]4f3 6s2. In its elemental form praseodymium's CAS number is 7440-10-0. The praseodymium atom has a radius of 182.pm and it's Van der Waals radius is is unknown. Praseodymium is somewhat toxic. Praseodymium resembles the typical trivalent rare earths, however, it will exhibit a +4 state when stabilized in a zirconia host. Praseodymium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. The element is found in most all light rare earth derivatives. It is highly valued in glass and ceramic production as a bright yellow pigment because of its optimum reflectance at 560 nm. Much research is being done on its optical properties for use in amplification of telecommunication systems, including as a doping agent in fluoride fibers. The origin of the element name comes from the Greek words 'prasios didymos' meaning green twin. See Praseodymium research below.
PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Bullion and bar forms are best if purchasing solely for physical possession and risk exposure.
Synthesis mechanism of low-voltage praseodymium oxide doped zinc oxide varistor ceramics prepared through modified citrate gel coating.
Abdullah WR, Zakaria A, Ghazali MS.
Int J Mol Sci. 2012;13(4):5278-89. Epub 2012 Apr 24.
PMID:
22606043
[PubMed - in process]
Inorganic-organic hybrid compounds based on novel lanthanide-antimony oxohalide nanoclusters.
Hu B, Zou GD, Feng ML, Huang XY.
Dalton Trans. 2012 May 2. [Epub ahead of print]
PMID:
22549083
[PubMed - as supplied by publisher]
High pressure luminescence spectra of CaMoO(4):Pr(3+).
Mahlik S, Grinberg M, Cavalli E, Bettinelli M.
J Phys Condens Matter. 2012 May 30;24(21):215402. Epub 2012 Apr 27.
PMID:
22543332
[PubMed - in process]
Bremsstrahlung parameters of praseodymium-142 in different human tissues: a dosimetric perspective for (142)Pr radionuclide therapy.
Bakht MK, Jabal-Ameli H, Ahmadi SJ, Sadeghi M, Sadjadi S, Tenreiro C.
Ann Nucl Med. 2012 Apr 12. [Epub ahead of print]
PMID:
22528970
[PubMed - as supplied by publisher]
Superbroadband near-IR photoluminescence from Pr3+-doped fluorotellurite glasses.
Zhou B, Tao L, Tsang YH, Jin W, Pun EY.
Opt Express. 2012 Feb 13;20(4):3803-13. doi: 10.1364/OE.20.003803.
PMID:
22418137
[PubMed - in process]
Upgrade of the resonance ionization laser ion source at ISOLDE on-line isotope separation facility: new lasers and new ion beams.
Fedosseev VN, Berg LE, Fedorov DV, Fink D, Launila OJ, Losito R, Marsh BA, Rossel RE, Rothe S, Seliverstov MD, Sjödin AM, Wendt KD.
Rev Sci Instrum. 2012 Feb;83(2):02A903.
PMID:
22380244
[PubMed - in process]
Uncovering the global life cycles of the rare Earth elements.
Du X, Graedel TE.
Sci Rep. 2011;1:145. Epub 2011 Nov 4.
PMID:
22355662
[PubMed]
Nonaaqua-praseodymium triiodide-thio-urea (1/2).
Antonenko TA, Alikberova LY, Albov DV.
Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):m110. Epub 2012 Jan 7.
PMID:
22346801
[PubMed - in process]
Di-?-pivalato-?O,O':O';?O:O,O'-bis-[(methanol-?O)bis-(2,2,6,6-tetra-methylhepta-ne-3,5-dionato)praseo-dymium(III)].
Meng Q, Cross AM, May PS, Sykes AG, Berry MT.
Acta Crystallogr Sect E Struct Rep Online. 2011 Nov 1;67(Pt 11):m1514-5. Epub 2011 Oct 12.
PMID:
22219764
[PubMed - in process]
The matlockite-type praseodymium(III) oxide bromide PrOBr.
Talmon-Gros P, Schurz CM, Schleid T.
Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):i74. Epub 2011 Nov 23.
PMID:
22199472
[PubMed - in process]
Selected trace elements in the sacramento river, california: occurrence and distribution.
Taylor HE, Antweiler RC, Roth DA, Alpers CN, Dileanis P.
Arch Environ Contam Toxicol. 2012 May;62(4):557-69. Epub 2011 Dec 23.
PMID:
22193863
[PubMed - in process]
NaYF4:Pr3+ nanocrystals displaying photon cascade emission.
Gusowski MA, Swart HC, Karlsson LS, Trzebiatowska-Gusowska M.
Nanoscale. 2012 Jan 21;4(2):541-6. Epub 2011 Nov 29.
PMID:
22127460
[PubMed - indexed for MEDLINE]
Tetra-kis(?-4-tert-butyl-benzoato)-?O:O,O';?O,O':O';?O:O'-bis-[aqua-bis-(4-tert-butyl-benzoato-?O,O')(4-tert-butyl-benzoic acid-?O)praseodymium(III)].
Dai J, Pan RK, Yang J.
Acta Crystallogr Sect E Struct Rep Online. 2011 Aug 1;67(Pt 8):m1160-1. Epub 2011 Jul 30.
PMID:
22090916
[PubMed]
Unusual spectral renormalization in hexaborides.
Patil S, Adhikary G, Balakrishnan G, Maiti K.
J Phys Condens Matter. 2011 Dec 14;23(49):495601. Epub 2011 Nov 17.
PMID:
22089641
[PubMed - indexed for MEDLINE]
Novel lanthanide-based polymeric chains and corresponding ultrafast dynamics in solution.
Thielemann DT, Klinger M, Wolf TJ, Lan Y, Wernsdorfer W, Busse M, Roesky PW, Unterreiner AN, Powell AK, Junk PC, Deacon GB.
Inorg Chem. 2011 Dec 5;50(23):11990-2000. Epub 2011 Nov 8.
PMID:
22066577
[PubMed]
catena-Poly[[[bis-(3-amino-pyrazine-2-carboxyl-ato)triaqua-praseodymium(III)]-?-3-amino-pyrazine-2-carboxyl-ato-[(3-amino-pyrazine-2-carboxyl-ato)diaqua-formatopraseodymium(III)]-?-3-amino-pyrazine-2-carboxyl-ato] hexa-hydrate].
Gao S, Ng SW.
Acta Crystallogr Sect E Struct Rep Online. 2011 Sep 1;67(Pt 9):m1221-2. Epub 2011 Aug 11.
PMID:
22065704
[PubMed]
Tetra-kis(?-2-phen-oxy-propionato)-?O,O':O';?O:O,O',?O:O'-bis-[(1,10-phenanthroline-?N,N')(2-phen-oxy-propionato-?O,O')praseodymium(III)].
Shen JB, Liu JL, Zhao GL.
Acta Crystallogr Sect E Struct Rep Online. 2011 Sep 1;67(Pt 9):m1321. Epub 2011 Aug 31.
PMID:
22058896
[PubMed]
Poly[diaquabis-(?(4)-fumarato-?O:O:O:O)(?(4)-fumarato-?O:O,O:O:O,O)(?(2)-fumaric acid-?O:O)dipraseodymium(III)].
Liu PL, Cao W, Wang J, Zeng RH, Zeng Z.
Acta Crystallogr Sect E Struct Rep Online. 2011 Oct 1;67(Pt 10):m1433-4. Epub 2011 Sep 30.
PMID:
22058712
[PubMed]
Spectroscopic properties and upconversion in Pr3+:YF3 nanoparticles.
Pellé F, Dhaouadi M, Michely L, Aschehoug P, Toncelli A, Veronesi S, Tonelli M.
Phys Chem Chem Phys. 2011 Oct 21;13(39):17453-60. Epub 2011 Sep 2.
PMID:
21887443
[PubMed - indexed for MEDLINE]
Signatures of spin-glass behaviour in PrIr2B2 and heavy fermion behaviour in PrIr2B2C.
Anupam, Anand VK, Hossain Z, Adroja DT, Geibel C.
J Phys Condens Matter. 2011 Sep 21;23(37):376001. Epub 2011 Aug 31.
PMID:
21878715
[PubMed - indexed for MEDLINE]
Material Safety Data Sheet
1 Identification of substance
Product details
Trade name Praseodymium metal
2 Composition/Data on components:
Chemical characterization: Designation: (CAS#)
Praseodymium (CAS# 7440-10-0); 100%
Identification number(s):
EINECS Number: 231-120-3
3 Hazards identification
Hazard designation: · void
Information pertaining to particular dangers for man and environment
Not applicable
4 First aid measures
After inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Consult doctor if symptoms persist.
Seek immediate medical advice.
After skin contact
Instantly wash with water and soap and rinse thoroughly.
Seek immediate medical advice.
After eye contact
Rinse opened eye for several minutes under running water. Then consult doctor.
After swallowing Seek medical treatment.
5 Fire fighting measures
Suitable extinguishing agents
Special powder for metal fires. Do not use water.
For safety reasons unsuitable extinguishing agents Water.
Protective equipment:
Wear self-contained breathing apparatus.
Wear full protective suit.
Measures for environmental protection:
Do not allow material to be released to the environment without proper governmental permits.
Measures for cleaning/collecting: Collect mechanically.
Additional information:
See Section 7 for information on safe handling
See section 8 for information on personal protection equipment.
See Section 13 for information on disposal.
7 Handling and storage
Handling
Information for safe handling:
Keep containers tightly sealed.
Store in cool, dry place in tightly closed containers.
No special precautions necessary if used correctly.
Information about protection against explosions and fires:
No special measures required.
Storage
Requirements to be met by storerooms and containers:
No special requirements.
Information about storage in one common storage facility:
Do not store together with oxidizing and acidic materials.
Store away from halogens.
Further information about storage conditions:
Store under dry inert gas.
Keep container tightly sealed.
Store in cool, dry conditions in well sealed containers.
8 Exposure controls and personal protection
Additional information about design of technical systems:
Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.
Components with critical values that require monitoring at the workplace:
Not required.
Additional information: No data
Personal protective equipment
General protective and hygienic measures
The usual precautionary measures should be adhered to in handling the chemicals.
Keep away from foodstuffs, beverages and food.
Instantly remove any soiled and impregnated garments.
Wash hands during breaks and at the end of the work.
Breathing equipment: Use breathing protection with high concentrations.
Protection of hands: Impervious gloves
Eye protection: Safety glasses
Body protection: Protective work clothing.
9 Physical and chemical properties:
General Information
Form: Solid.
Colour: Silver-coloured
Smell: Odourless
Value/Range Unit Method
Change in condition
Melting point/Melting range: 931 ° C
Boiling point/Boiling range: 3127 ° C
Sublimation temperature / start: Not determined
Flash point: Not applicable
Inflammability (solid, gaseous) Product is not inflammable.
Powder: highly flammable
Ignition temperature: Not determined
Decomposition temperature: Not determined
Danger of explosion: Product is not explosive.
Critical values for explosion:
Lower: Not determined
Upper: Not determined
Steam pressure: Not determined
Density at 20 ° C 6.773 g/cm³
Solubility in / Miscibility with
Water: Not determined
10 Stability and reactivity
Thermal decomposition / conditions to be avoided:
No decomposition if used and stored according to specifications.
Materials to be avoided:
Oxidizing agents
Acids
Halogens
Water/moisture
Air
Dangerous reactions:
Powder: contact with water liberates extremely flammable gases.
Dangerous products of decomposition: Metal oxide
11 Toxicological information
Acute toxicity:
Primary irritant effect:
on the skin: May cause irritation
on the eye: May cause irritation
Sensitization: No sensitizing effect known.
Additional toxicological information:
To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.
No classification data on carcinogenic properties of this material is available from the EPA, IARC, NTP, OSHA or ACGIH.
12 Ecological information:
General notes:
Do not allow material to be released to the environment without proper governmental permits.
Water hazard class 1 (Self-assessment): slightly hazardous for water.
Do not allow undiluted product or large quantities of it to reach ground water, water bodies or sewage system.
13 Disposal considerations
Product:
Recommendation
Consult state, local or national regulations for proper disposal.
Hand over to disposers of hazardous waste.
Must be specially treated under adherence to official regulations.
Uncleaned packagings:
Recommendation:
Disposal must be made according to official regulations.
14 Transport information
Land transport ADR/RID and GGVS/GGVE (cross-border/domestic)
ADR/RID-GGVS/E Class: None
Maritime transport IMDG/GGVSea:
IMDG/GGVSea Class: None
Air transport ICAO-TI and IATA-DGR:
ICAO/IATA Class: None
Transport/Additional information:
Not dangerous according to the above specifications.
15 Regulatory information
Designation according to EC guidelines:
Observe the normal safety regulations when handling chemicals
The product is not subject to identification regulations under EC Directives and the Ordinance on Hazardous Materials (GefStoffV).
National regulations
Information about limitation of use:
For use only by technically qualified individuals.
Water hazard class:
Water hazard class 1 (Self-assessment): slightly hazardous for water.
16 Other information:
Employers should use this information only as a supplement to other information gathered by them, and should make independent judgement of suitability of this information to ensure proper use and protect the health and safety of employees. This information is furnished without warranty, and any use of the product not in conformance with this Material Safety Data Sheet, or in combination with any other product or process, is the responsibility of the user.
Proud sponsors of Aeromat 2012. Please join us and our customers & co-sponsors Boeing and ATI on
June 18-20, 2012
in Charlotte, North Carolina
Praseodymium is a Block F, Group 3, Period 6 element. The number of electrons in each of Praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electronic configuration is [Xe]4f3 6s2. In its elemental form praseodymium's CAS number is 7440-10-0. The praseodymium atom has a radius of 182.pm and it's Van der Waals radius is is unknown. Praseodymium is somewhat toxic. Praseodymium resembles the typical trivalent rare earths, however, it will
exhibit a +4 state when stabilized in a zirconia host. Praseodymium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form 
of foil, sputtering target, and rod, and compounds as submicron and nanopowder. The element is found in most all light rare earth derivatives. It is highly valued in glass and ceramic production as a bright yellow pigment because of its optimum reflectance at 560 nm. Much research is being done on its optical properties for use in amplification of telecommunication systems, including as a doping agent in fluoride fibers. The origin of the element name comes from the Greek words 'prasios didymos' meaning green twin. See Praseodymium research below.
