Strontium Chromate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Strontium is a Block S, Group 2, Period 5 element. The number of electrons in each of Strontium's shells is 2, 8, 18, 8, 2 and its electronic configuration is [Kr] 5s2. In its elemental form strontium's CAS number is 7440-24-6. The strontium atom has a radius of 215.1.pm and it's Van der Waals radius is 200.pm. The non-radioactive isotopes of Strontium are not toxic. Strontium has low tech applications as an additive to flares and pyrotechnics because of the bright crimson flame produced by its salts. Strontium 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. It also has many high technology applications because of its high refractive index as a titanate in glass, as a "getter" in electron tubes and as a dopant for numerous perovskite formulations to produce cathodes for oxygen generation or solid oxide fuel cells. Historically the primary use of strontium was to produce CRT glass for color television and computer tubes. Strontium was first discovered by A. Crawford in 1790. Strontium was named after the Scottish town it was discovered in, Strontian. See Strontium research below.
Chromium is a Block D, Group 6, Period 4 element. The number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electronic configuration is [Ar] 3d5 4s1. In its elemental form chromium's CAS number is 7440-47-3. The chromium atom has a radius of 124.9.pm and it's Van der Waals radius is 200.pm. Hexavalent chromium is toxic. Chromium is highly resistant to corrosion. This has led to its use in numerous alloying and steel producing applications. When chromium is added to glass or ceramic glazes, it produces a brilliant green. Chromium 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. It is also used as a paint pigment for this purpose.Although chromium metal is an essential trace element, hexavalent chromium (Cr(VI)) is especially toxic and carcinogenic. Recently, chromites have formed the basis for cathode compositions for oxygen generation and fuel cell applications. Chromium information, including Technical Data, Safety Data and its high purityproperties, research, applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included. Chromium was first discovered by Anders Ekeberg in 1802. Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color. See Chromium 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). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.
The effect of frequency of calcium hydroxide dressing change and various pre- and inter-operative factors on the endodontic treatment of traumatized immature permanent incisors.
Yassen GH, Chin J, Mohammedsharif AG, Alsoufy SS, Othman SS, Eckert G.
Dent Traumatol. 2011 Nov 16. doi: 10.1111/j.1600-9657.2011.01089.x. [Epub ahead of print]
PMID:
22136164
[PubMed - as supplied by publisher]
Thirteen Years' Experience of Diaphragmatic Injury in Children from the Post Graduate Institute of Medical Sciences (PGIMS), Rohtak, India.
Rattan KN, Narang R, Rohilla S, Maggu S, Dhaulakhandi DB.
Malays J Med Sci. 2011 Jan;18(1):45-51.
PMID:
22135573
[PubMed - in process]
Requirement of Potassium for the Action of Anti-Diuretic Hormone (ADH) on Frog Skin.
Jared SR, Rao JP.
Zoolog Sci. 2011 Dec;28(12):916-21.
PMID:
22132789
[PubMed - in process]
Removal efficiency of water purifier and adsorbent for iodine, cesium, strontium, barium and zirconium in drinking water.
Sato I, Kudo H, Tsuda S.
J Toxicol Sci. 2011;36(6):829-34.
PMID:
22129747
[PubMed - in process]
Compact pulse forming line using barium titanate ceramic material.
Kumar Sharma S, Deb P, Shukla R, Prabaharan T, Shyam A.
Rev Sci Instrum. 2011 Nov;82(11):115102.
PMID:
22129008
[PubMed - in process]
Barium enema and diagnosis of colorectal cancer.
Claridge LC.
BMJ. 2011 Nov 29;343:d7704. doi: 10.1136/bmj.d7704. No abstract available.
PMID:
22127450
[PubMed - in process]
Preparation methods and thermal stability of Ba-Mn-Ce oxide catalyst for NO(x)-assisted soot oxidation.
Wu X, Lin F, Wang L, Weng D, Zhou Z.
J Environ Sci (China). 2011;23(7):1205-10.
PMID:
22125916
[PubMed - in process]
Mechanisms of the cerebral vasodilator actions of isoflavonoids of Gegen on rat isolated basilar artery.
Deng Y, Ng ES, Yeung JH, Kwan YW, Lau CB, Koon JC, Zhou L, Zuo Z, Leung PC, Fung KP, Lam FF.
J Ethnopharmacol. 2011 Nov 20. [Epub ahead of print]
PMID:
22120017
[PubMed - as supplied by publisher]
[A new retrievable nitinol alloy stents for treatment of refractory benign esophageal strictures].
Li XH, Hu Y, Yang H, Bella AE, Fu JH.
Zhonghua Wei Chang Wai Ke Za Zhi. 2011 Nov;14(11):875-8. Chinese.
PMID:
22116724
[PubMed - in process]
Long-term follow-up of autologous hematopoietic stem cell transplantation for severe refractory Crohn's disease.
Hommes DW, Duijvestein M, Zelinkova Z, Stokkers PC, Ley MH, Stoker J, Voermans C, van Oers MH, Kersten MJ.
J Crohns Colitis. 2011 Dec;5(6):543-9. Epub 2011 Jun 12.
PMID:
22115372
[PubMed - in process]
A novel multipass scheme for enhancement of second harmonic generation.
Harimoto T, Yo B, Uchida K.
Opt Express. 2011 Nov 7;19(23):22692-7. doi: 10.1364/OE.19.022692.
PMID:
22109150
[PubMed - in process]
Insight into the local structure of barium indate oxide-ion conductors: An X-ray total scattering study.
Mancini A, Shin JF, Orera A, Slater PR, Tealdi C, Ren Y, Page KL, Malavasi L.
Dalton Trans. 2011 Nov 22. [Epub ahead of print]
PMID:
22105971
[PubMed - as supplied by publisher]
Hiatal hernias.
Dean C, Etienne D, Carpentier B, Gielecki J, Tubbs RS, Loukas M.
Surg Radiol Anat. 2011 Nov 22. [Epub ahead of print]
PMID:
22105688
[PubMed - as supplied by publisher]
New Volatile Strontium and Barium Imidazolate Complexes for the Deposition of Group 2 Metal Oxides.
Norman JA, Perez M, Kim MS, Lei X, Ivanov S, Derecskei-Kovacs A, Matz L, Buchanan I, Rheingold AL.
Inorg Chem. 2011 Nov 21. [Epub ahead of print]
PMID:
22103761
[PubMed - as supplied by publisher]
INDIVIDUAL-SPECIFIC TRANSGENERATIONAL MARKING OF FISH POPULATIONS BASED ON A BARIUM DUAL-ISOTOPE PROCEDURE.
Huelga-Suarez G, Moldovan M, Garcia-Valiente A, Garcia-Vazquez E, Alonso JI.
Anal Chem. 2011 Nov 21. [Epub ahead of print]
PMID:
22103693
[PubMed - as supplied by publisher]
Ileorectal fistula due to a rectal cancer-A case report.
Takahashi M, Fukuda T.
Int J Surg Case Rep. 2011;2(2):20-1. Epub 2010 Nov 27.
PMID:
22096678
[PubMed - in process]
Pilot study: a randomised, double blind, placebo controlled trial of pancrealipase for the treatment of postprandial irritable bowel syndrome-diarrhoea.
Money ME, Walkowiak J, Virgilio C, Talley NJ.
Frontline Gastroenterol. 2011 Jan;2(1):48-56. Epub 2010 Nov 3.
PMID:
22095308
[PubMed]
Functional antagonism of amphetamine versus ethanol on adrenergic neurotransmission in vas deferens of adolescent rats.
Silva Júnior ED, Caricati-Neto A, Jurkiewicz NH, Jurkiewicz A.
Eur J Pharmacol. 2011 Nov 7. [Epub ahead of print]
PMID:
22094068
[PubMed - as supplied by publisher]
Esophageal inlet patch.
Behrens C, Yen PP.
Radiol Res Pract. 2011;2011:460890. Epub 2011 Mar 30.
PMID:
22091379
[PubMed - in process]
C-A5-02: Is Tailored Screening for Colorectal Cancer based on Gender and Race Cost-Effective?
Flottemesch T; the Prevention Priorities Study Team.
Clin Med Res. 2011 Nov;9(3-4):174.
PMID:
22090618
[PubMed - as supplied by publisher]