| Identification | More | [Name]
STRONTIUM OXIDE | [CAS]
1314-11-0 | [Synonyms]
STRONTIUM OXIDE
STRONTIUM OXIDE (MONO)
SrO
Strontia
Strontium oxide (SrO)
strontiumoxide(sro)
Strontiumoxidetechgrbrownpowder
Strontiumoxidewhitepowder
STRONTIUM OXIDE, 99.9%
STRONTIUM OXIDE SUBMICRON POWDER 99.9%
STRONTIUM OXIDE NANOPOWDER 98%
STRONTIUM OXIDE, 99.5%
Strontium oxide,99.5%,100 mesh powder
Strontium oxide,99%
Strontiumoxide(99.9%-Sr)
strontium oxide, tech.
STRONTIUM OXIDE: 99.95%
STRONTIUM OXIDE: (99.95%-SR)
Strontium oxide, 99.5% (metals basis), SrO ≈97%
Strontium oxide, 99.5% (metals basis), SrO 97% | [EINECS(EC#)]
215-219-9 | [Molecular Formula]
OSr | [MDL Number]
MFCD00049558 | [Molecular Weight]
103.62 | [MOL File]
1314-11-0.mol |
| Chemical Properties | Back Directory | [Melting point ]
2430°C | [Boiling point ]
3000°C | [density ]
4.7 g/mL at 25 °C(lit.)
| [Fp ]
3000°C | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
Soluble in potassium hydroxide solution. Slightly soluble in alcohol. Insoluble in acetone and ether. | [form ]
Powder | [color ]
white | [Specific Gravity]
4.7 | [Water Solubility ]
Soluble in fused potassium hydroxide. Insoluble in ether and acetone. Decomposes in water to Sr(OH){2} with evolution of heat.Slightly soluble in alcohol. Insoluble in acetone and ether. | [Sensitive ]
Moisture Sensitive | [Merck ]
14,8846 | [CAS DataBase Reference]
1314-11-0(CAS DataBase Reference) | [EPA Substance Registry System]
Strontium oxide (SrO) (1314-11-0) |
| Hazard Information | Back Directory | [Chemical Properties]
white to grayish white; reacts with water, forming Sr(OH)2, with evolution of heat; enthalpy of fusion 75.00kJ/mol [MER06] [CRC10] | [Uses]
manufacture of strontium salts. | [Flammability and Explosibility]
Notclassified |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R14:Reacts violently with water.
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S30:Never add water to this product .
S36/37:Wear suitable protective clothing and gloves . | [RIDADR ]
UN 3262 8/PG 2
| [WGK Germany ]
3
| [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II |
| Questions And Answer | Back Directory | [Physical Properties]
Grayish-white porous mass; cubic crystalline structure; refractive index 1.810; vaporizes above 3,000°C; reacts with water forming strontium hydroxide, Sr(OH)2 with evolution of heat; miscible with fused caustic potash; slightly soluble in alcohol; insoluble in acetone and ether.
| [Uses]
Strontium oxide is an alkaline earth flux that melts at 4406°F(2430°C), but the substance begins its fluxing action above 1994°F(1090°C). Strontium oxide's properties are difficult to describe, so it's often compared to other alkaline earth oxides like calcium and barium oxides. It has similarities to both. Strontium oxide has fluxing properties and a strong color response like barium oxide, although not as intense. It adds strength and durability to a glaze like calcium oxide and it melts very slowly, thus increasing the melting range of a glaze.
Strontium oxide is often substituted for toxic barium oxide. A typical substitution is 0.75 grams of Strontium carbonate for 1 gram barium carbonate; keep in mind that it won't produce the same color response as barium oxide.
Strontium has a moderate viscosity and surface tension and a moderate to high expansion and contraction rate that's similar to calcium oxide.It's not volatile at ceramic temperatures, is slightly soluble,and has no known toxicity.
A slightly soluble source of strontium oxide is strontium carbonate, which usually contains some CaO.
| [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
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