1314-11-0

Basic information

• Product Name: STRONTIUM OXIDE
• Synonyms: SrO;Strontia;Strontium oxide (SrO);strontiumoxide(sro);STRONTIUM OXIDE;STRONTIUM OXIDE (MONO);Strontiumoxidetechgrbrownpowder;Strontiumoxidewhitepowder
• CAS NO: 1314-11-0
• Molecular Formula: OSr
• Molecular Weight: 103.62
• EINECS: 215-219-9
• Product Categories: Inorganics;Catalysis and Inorganic Chemistry;Chemical Synthesis;Oxides;Strontium;StrontiumMetal and Ceramic Science;metal oxide
• Mol File: 1314-11-0.mol
• Article Data: 84

Chemical Properties

• Melting Point: 2430°C
• Boiling Point: 3000°C
• Flash Point: 3000°C
• Appearance: white/Powder
• Density: 4.7 g/mL at 25 °C(lit.)
• Storage Temp.: Sealed in dry,Room Temperature
• Solubility: Soluble in potassium hydroxide solution. Slightly soluble in alc
• Water Solubility: Soluble in fused potassium hydroxide. Insoluble in ether and acetone. Decomposes in water to Sr(OH){2} with evolution of heat.S
• Sensitive: Moisture Sensitive
• Merck: 14,8846
• CAS DataBase Reference: STRONTIUM OXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: STRONTIUM OXIDE(1314-11-0)
• EPA Substance Registry System: STRONTIUM OXIDE(1314-11-0)

Safety Data

• Hazard Codes: C
• Statements: 14-34
• Safety Statements: 26-30-36/37
• RIDADR: UN 3262 8/PG 2
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 1314-11-0(Hazardous Substances Data)

Usage

Description

Strontium oxide (SrO) is an alkaline earth oxide with a melting point of 4406°F (2430°C) and begins its fluxing action above 1994°F (1090°C). It shares properties with other alkaline earth oxides like calcium and barium oxides, exhibiting fluxing properties and a strong color response similar to barium oxide, but not as intense. Strontium oxide also adds strength and durability to a glaze like calcium oxide and melts slowly, thus increasing the melting range of a glaze. It is often substituted for toxic barium oxide and is characterized by its moderate viscosity and surface tension, moderate to high expansion and contraction rate, non-volatility at ceramic temperatures, slight solubility, and no known toxicity.

Uses

Used in Ceramic Industry:
Strontium oxide is used as a flux in the making of glass for television tubes, replacing toxic barium oxide [CAS: 1304-28-5] BaO. It is also used in the manufacture of strontium salts.
Used in Medical Applications:
Strontium oxide is utilized in the medical field, taking advantage of its slightly soluble nature from strontium carbonate, which usually contains some CaO.
Used in Pyrotechnics:
Strontium oxide is employed in pyrotechnics for its strong color response.
Used in Pigments Industry:
It is used in the production of pigments due to its unique properties.
Used in Greases and Soaps:
Strontium oxide is used in the formulation of greases and soaps, contributing to their overall performance.
Used as a Chemical Intermediate:
It serves as a chemical intermediate in various chemical reactions and processes.
Used in Semiconductor, Photovoltaic, and Coating Applications:
High-purity strontium oxide rotatable sputtering targets are produced for use in semiconductor, photovoltaic, and coating applications by chemical vapor deposition and physical vapor deposition, as well as optical applications.
Physical and Chemical Properties:
Strontium oxide appears as a grayish-white porous mass with a cubic crystalline structure and a refractive index of 1.810. It vaporizes above 3,000°C and reacts with water to form strontium hydroxide (Sr(OH)2) with the evolution of heat. It is miscible with fused caustic potash, slightly soluble in alcohol, and insoluble in acetone and ether. Strontium oxide is formed when Sr metal reacts with oxygen, and it is a strongly basic oxide. It reacts with moisture to form the hydroxide and with carbon dioxide in the air to form the carbonate.

Preparation

Strontium oxide is prepared by thermal decomposition of strontium carbonate, hydroxide, or nitrate: SrCO3 → SrO + CO2 Sr(OH)2 → SrO + H2O Sr(NO3)2 → SrO + N2O5

Flammability and Explosibility

Notclassified

InChI:InChI=1/O.Sr/rOSr/c1-2

Upstream product

• 1633-05-2 strontium(II) carbonate 
• 10476-86-5 strontium(II) iodide 
• 1333-74-0 hydrogen 
• 80937-33-3 oxygen 
• 1326759-81-2 di-strontium tetra(2-tert-butyl-4,5-di-(1,1-dimethylpropyl)imidazolate) 

Related news

Research articleMembrane reactors for biodiesel production with STRONTIUM OXIDE (cas 1314-11-0) as a heterogeneous catalyst08/16/2019

A membrane reactor containing an immobilized heterogeneous catalyst is an alternative for traditional homogeneous-based catalyzed transesterification for biodiesel production. Major problems in homogeneous catalysis are related to catalyst recuperation and soap formation, which can be overcome b...detailed

Relevant articles and documents

The superconductor (Tl,Hg,Ca)2- (Ba,Sr)2(Ca,Sr,Tl)Cu2O7.6

The crystal structure of superconductor (Tl,Hg,Ca)2-(Ba,Sr)2(Ca,Sr,Tl)Cu2O7.6 was investigated. The compound contained both Tl and Hg in the charge reservoir (CR), Sr is located at both alkali-earth (AE) metal

Characterization of an alkaline earth metal-doped solid superacid and its activity for the esterification of oleic acid with methanol

The leaching of grafted sulfate groups is one of the major issues for the solid acid catalysts with sulfate modification. A detailed study of sulfated alkaline earth metal-ferric composite oxides was carried out to suppress the leaching of sulfate groups as well as maintain high reactivity during the esterification of oleic acid. The acid properties and quantities of the active sites present on the catalysts were studied with pyridine-adsorption, FT-IR, TGA, and titration methods. The following order of acidic strength was observed: SO42-/Sr-Fe oxide > SO42-/Ca-Fe oxide > SO42-/Mg-Fe oxide. After sulfate modification, sulfate ions are linked to the composite oxides in a bridged bidentate form. SO42-/Sr-Fe oxide exhibits superacidic nature due to the high induction effect of the sulfated ion grafted on the Sr cation. TGA and FT-IR spectroscopic analyses provide new insights into the function of the iron cations implanted on the catalyst surface for enhancing the turnover frequency (TOF) of the active sites on SO42-/Sr-Fe oxide in the esterification. It was verified that the active energy of SO42-/Sr-Fe oxide for the esterification of oleic acid with methanol was as low as 28.53 ± 0.72 kJ mol-1. In the reusability study, SO42-/Sr-Fe oxide exhibited high reusability in the esterification, due to the high stability of the sulfate ion grafted on SO42-/Sr-Fe oxide.

Synthesis and crystal structure of oxygen-deficient Bilayer Ruthenate Sr3Ru2O7-δ

The structural properties of oxygen-deficient Ruddlesden-Popper-type Sr3Ru2O7-δ compounds are presented. Sr3Ru2O7-δ compounds (δ≤0.17, 0.23, 0.28, 0.40, and 0.47) were obtained by hydrogen reduction of the parent Sr3Ru2O7 ruthenate. Rietveld structure refinements were performed to determine the crystal structure of the reduced compounds. Oxygen deficiency in the samples was studied by redox titrations and the Ru3+ content was confirmed by electron paramagnetic resonance. Magnetisation measurements were performed to study the magnetic response of the reduced phases. Removal of the oxygen atoms from the parent compound resulted in the decrease of the c-lattice parameter and increase of the a-lattice parameter that is related to partial reduction of Ru4+, in Sr3Ru2O7, to Ru3+. Rietveld analyses showed that the apical oxygen atoms of the RuO6 octahedra were partially lost during reduction. Redox titration experiments showed a linear correlation between reduction of the compounds and the annealing time under H2. CSIRO 2014.