Sodium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
 Sodium is primarily used in its metallic form in the production of chemical esters and in the manufacturing of various other organic compounds. The metal is used in the alloy of tin, nickel and copper for its structural characteristics. Sodium 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. High purity sodium compounds are used as reducing agents. Sodium compounds are used in low tech applications throughout industry.
Sodium facts, including appearance, CAS #, and molecular formula and safety data, research and properties are
available for many specific states, forms and shapes on the product pages listed to the left. Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Nanoparticles and nanopowders provide ultra high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.
 Oxides are available in forms including powders and dense pellets for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Sodium is available in soluble forms including chlorides, nitrates and acetates. These compounds are also manufactured as solutions at specified stoichiometries.
Sodium is a Block S, Group 1, Period 3 element. The number of electrons in each of Sodium's shells is 2, 8, 1 and its electronic configuration is [Ne] 3s1. In its elemental form sodium's CAS number is 7440-23-5. The sodium atom has a radius of 185.8.pm and it's Van der Waals radius is 227.pm.
All elemental metals, compounds and solutions may be synthesized in ultra high purity (e.g. 99.999%) for laboratory standards, advanced electronic, thin fillm deposition using sputtering targets and  evaporation materials, metallurgy and optical materials and other high technology applications. Information is provided for stable (non-radioactive) isotopes. Organo-Metallic Sodium compounds are soluble in organic or non-aqueous solvents. See Analytical Services for information on available certified chemical and physical analysis techniques including MS-ICP, X-Ray Diffraction, PSD and Surface Area (BET) analysis.
Sodium was first discovered by Sir Humphrey Davy in 1807.
The name Sodium comes from the Latin word "natrium" which means sodium carbonate.
 sodium |
 Natrium |
 sodio |
 Sódio |
 sodio |
 Natrium |
Abundance. The following table shows the abundance of sodium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| Na-23 |
22.9897697 |
100 |
The following table shows the abundance of Sodium present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
| |
Typical Human Body |
Universe |
| by Weight |
1400000 ppb |
20000 ppb |
| by Atom |
380000 ppb |
1000 ppb |
Safety Data and Biological Role. The safety data for sodium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Sodium compounds have vital biological role as the sodium cation is the main extracellular cation in animals and is important for nerve function.
Ionization Energy. The ionization energy for sodium (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
495.85 kJ mol-1 |
| 2nd Ionization Energy |
4562.48 kJ mol-1 |
| 3rd Ionization Energy |
6910.33 kJ mol-1 |
Conductivity. As to sodium's electrical and thermal conductivity, the electrical conductivity measured as to electrical resistivity @ 20 ºC is 4.2 μΩcm and its electronegativities (or its ability to draw electrons relative to other elements) is 0.93. The thermal conductivity of sodium is 141 W m-1 K-1.
Thermal Properties. The melting point and boiling point for sodium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
2.64 kJ mol-1 |
| Heat of Vaporization |
99.2 kJ mol-1 |
| Heat of Atomization |
107.566 kJ mol-1 |
Recent Research & Development for SodiumEvaluation of analgesic efficacy of bromfenac sodium ophthalmic solution 0.09% versus ketorolac tromethamine ophthalmic solution 0.5% following LASEK or Epi-LASIK.
Wang XJ, Wong SH, Givergis R, Chynn EW.
Clin Ophthalmol. 2011;5:1451-7. Epub 2011 Oct 7.
PMID:
22034570
[PubMed - in process]
Risk of Poor Outcomes with Novel and Traditional Biomarkers at Clinical AKI Diagnosis.
Hall IE, Coca SG, Perazella MA, Eko UU, Luciano RL, Peter PR, Han WK, Parikh CR.
Clin J Am Soc Nephrol. 2011 Oct 27. [Epub ahead of print]
PMID:
22034509
[PubMed - as supplied by publisher]
Chemoenzymatic synthesis of homogeneous ultralow molecular weight heparins.
Xu Y, Masuko S, Takieddin M, Xu H, Liu R, Jing J, Mousa SA, Linhardt RJ, Liu J.
Science. 2011 Oct 28;334(6055):498-501.
PMID:
22034431
[PubMed - in process]
Association between the lack of teeth and the expression of myosins in masticatory muscles of microphthalmic mouse.
Nariyama M, Kota Y, Kaneko S, Asada Y, Yamane A.
Cell Biochem Funct. 2011 Oct 27. doi: 10.1002/cbf.1821. [Epub ahead of print]
PMID:
22034127
[PubMed - as supplied by publisher]
Serum Calcium Concentration Affects Signal Changes on Diffusion-Weighted Imaging in Hypoglycemic Encephalopathy.
Koh E, Tsai LK, Hong CT.
AJNR Am J Neuroradiol. 2011 Oct 27. [Epub ahead of print]
PMID:
22033722
[PubMed - as supplied by publisher]
Severe case and literature review of primary erythromelalgia: Novel SCN9A gene mutation.
Skeik N, Rooke TW, Davis MD, Davis DM, Kalsi H, Kurth I, Richardson RC.
Vasc Med. 2011 Oct 27. [Epub ahead of print]
PMID:
22033523
[PubMed - as supplied by publisher]
Selenium homeostasis and induction of thioredoxin reductase during long term selenite supplementation in the rat.
Erkhembayar S, Mollbrink A, Eriksson M, Larsen EH, Eriksson LC.
J Trace Elem Med Biol. 2011 Oct 25. [Epub ahead of print]
PMID:
22033016
[PubMed - as supplied by publisher]
The effect of hydroxyapatite presence on the degree of conversion and polymerization rate in a model self-etching adhesive.
Zhang Y, Wang Y.
Dent Mater. 2011 Oct 25. [Epub ahead of print]
PMID:
22032933
[PubMed - as supplied by publisher]
Relationship between sodium intake and sleep apnea in patients with heart failure.
Kasai T, Arcand J, Allard JP, Mak S, Azevedo ER, Newton GE, Bradley TD.
J Am Coll Cardiol. 2011 Nov 1;58(19):1970-4.
PMID:
22032708
[PubMed - in process]
Transcription of detoxification genes after permethrin selection in the mosquito Aedes aegypti.
Saavedra-Rodriguez K, Suarez AF, Salas IF, Strode C, Ranson H, Hemingway J, Black Iv WC.
Insect Mol Biol. 2011 Oct 27. doi: 10.1111/j.1365-2583.2011.01113.x. [Epub ahead of print]
PMID:
22032702
[PubMed - as supplied by publisher]
Reactive Aldehyde Metabolites from the Anti-HIV Drug Abacavir: Amino Acid Adducts as Possible Factors in Abacavir Toxicity.
Charneira C, Godinho AL, Oliveira MC, Pereira SA, Monteiro EC, Marques MM, Antunes AM.
Chem Res Toxicol. 2011 Oct 27. [Epub ahead of print]
PMID:
22032494
[PubMed - as supplied by publisher]
The effectiveness of intensive nursing care on seasonal variation of blood pressure in patients on peritoneal dialysis.
Quan L, Dong J, Li Y, Zuo L.
J Adv Nurs. 2011 Oct 27. doi: 10.1111/j.1365-2648.2011.05833.x. [Epub ahead of print]
PMID:
22032423
[PubMed - as supplied by publisher]
Short communication: Addition of varying amounts of sodium bicarbonate to colostrum replacer: Effects on immunoglobulin G absorption and serum bicarbonate in neonatal calves.
Cabral RG, Chapman CE, Haines DM, Brito AF, Erickson PS.
J Dairy Sci. 2011 Nov;94(11):5656-60.
PMID:
22032388
[PubMed - in process]
Plasma potassium-lowering effect of oral glucose, sodium bicarbonate, and the combination thereof in healthy neonatal dairy calves.
Grünberg W, Hartmann H, Burfeind O, Heuwieser W, Staufenbiel R.
J Dairy Sci. 2011 Nov;94(11):5646-55.
PMID:
22032387
[PubMed - in process]
Effect of method of delivery of sodium butyrate on rumen development in newborn calves.
Górka P, Kowalski ZM, Pietrzak P, Kotunia A, Jagusiak W, Holst JJ, Guilloteau P, Zabielski R.
J Dairy Sci. 2011 Nov;94(11):5578-88.
PMID:
22032381
[PubMed - in process]
Effects of partially replacing skimmed milk powder with dairy ingredients on rheology, sensory profiling, and microstructure of probiotic stirred-type yogurt during cold storage.
Marafon AP, Sumi A, Granato D, Alcântara MR, Tamime AY, Nogueira de Oliveira M.
J Dairy Sci. 2011 Nov;94(11):5330-40.
PMID:
22032355
[PubMed - in process]
Bio-based nanocomposite coating to preserve quality of Fior di latte cheese.
Gammariello D, Conte A, Buonocore GG, Del Nobile MA.
J Dairy Sci. 2011 Nov;94(11):5298-304.
PMID:
22032352
[PubMed - in process]
Sodium alginate as an ideal submucosal injection material for endoscopic submucosal resection: preliminary experimental and clinical study.
Akagi T, Yasuda K, Tajima M, Suzuki K, Inomata M, Shiraishi N, Sato Y, Kitano S.
Gastrointest Endosc. 2011 Nov;74(5):1026-32.
PMID:
22032316
[PubMed - in process]
An Observational Prospective Study of Topical Acidified Nitrite for Killing Methicillin-Resistant Staphylococcus aureus (MRSA) in Contaminated Wounds.
Ormerod AD, Shah AA, Li H, Benjamin NB, Ferguson GP, Leifert C.
BMC Res Notes. 2011 Oct 27;4(1):458. [Epub ahead of print]
PMID:
22032298
[PubMed - as supplied by publisher]
[Determination of three sweeteners in vinegars by solid phase extraction-high performance liquid chromatography/tandem mass spectrometry].
Yin F, Ding Z, Cao X, Gao J, Jiang D, Kuang D, Gu Y, He G.
Se Pu. 2011 Jun;29(6):554-7. Chinese.
PMID:
22032168
[PubMed - in process]
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