| Identification | More | [Name]
STRONTIUM IODIDE | [CAS]
10476-86-5 | [Synonyms]
STRONTIUM (II) IODIDE
STRONTIUM IODIDE
Hydriodic acid strontium salt (2:1)
SrI2
Strontium iodide (SrI2)
strontiumiodide(sri2)
Strontiumiodide,hexahydrate
STRONTIUM IODIDE, ANHYDROUS, 99.99+%
ultradry,99.99%metalsbasis
strontium iodide, anhydrous
Strontium diiodide
Strontium iodide, anhydrous, 99.99% (metals basis)
Strontium iodide, ultra dry, 99.99% (metals basis) | [EINECS(EC#)]
233-972-1 | [Molecular Formula]
I2Sr | [MDL Number]
MFCD00049557 | [Molecular Weight]
341.43 | [MOL File]
10476-86-5.mol |
| Chemical Properties | Back Directory | [Appearance]
White to yellowish white crystalline powder | [Melting point ]
515 °C (lit.) | [Boiling point ]
1773 °C/1 atm (lit.) | [density ]
4.55 g/mL at 25 °C(lit.)
| [form ]
beads
| [color ]
White to pale yellow | [Specific Gravity]
4.55 | [Water Solubility ]
Soluble in water and ethanol. | [Specific Heat Capacity]
Cp(crystal):0.238995J/(g·K),at 25℃ | [Sensitive ]
Hygroscopic | [Merck ]
14,8844 | [InChI]
1S/2HI.Sr/h2*1H;/q;;+2/p-2 | [InChIKey]
KRIJWFBRWPCESA-UHFFFAOYSA-L | [SMILES]
I[Sr]I | [Uses]
Strontium iodide is a yellowish granular powder made by
treating strontium carbonate with hydriodic acid. It is soluble
in water, alcohol, and ether. Strontium iodide was occasionally
used to increase contrast in collodion emulsions. | [CAS DataBase Reference]
10476-86-5(CAS DataBase Reference) | [EPA Substance Registry System]
Strontium iodide (SrI2) (10476-86-5) |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS05 | [Signal word ]
Danger | [Hazard statements ]
H318 | [Precautionary statements ]
P280-P305+P351+P338+P310 | [Hazard Codes ]
C | [Risk Statements ]
R14:Reacts violently with water.
R34:Causes burns. | [Safety Statements ]
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3260 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
WK9275000
| [F ]
3-8 | [TSCA ]
Yes | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Eye Dam. 1 |
| Hazard Information | Back Directory | [Description]
Strontium iodide (SrI2) is an ionic, water-soluble, deliquescent
compound that has been used in medicine as
a substitute for potassium iodide. Strontium iodide crystals
are colorless, transparent, hexagonal in structure,
and have a bitter, saline taste. Soluble in 0.6 part of water
at 15°C, they are also soluble in alcohol.
Strontium iodide can be prepared by reacting strontium
carbonate with hydroiodic acid:
SrCO3＋2HI→SrI2＋H2O＋CO2
Strontium iodide turns yellow when exposed to air
due to the formation of iodine at the surface of the crystals.
At high temperatures (when in the presence of air),
strontium iodide completely decomposes to form strontium
oxide and free iodine.
Several hydrates are known including SrI2·6H2O.
This salt is a white crystalline substance composed of
small plates. It decomposes in moist air due to its deliquescence.
Its specific gravity varies from 4.415 g/cm3
to 4.549 g/cm3, depending upon how the crystals are
formed. It loses water at 78°C and the anhydrate forms
above 200°C. The melting point of SrI2 is 507°C and its boiling point is 645°C where it decomposes to the
oxide and iodine. | [Chemical Properties]
White to yellowish white crystalline powder | [Hazard]
Toxic by ingestion and inhalation. | [Synthesis]
Preparation of anhydrous strontium iodide from strontium carbonate and hydriodic acid:
1. SrCO₃ reacts with HI to pH ~5.5. The pH is adjusted to 7.5 and the solution is filtered.
2. The solution is concentrated and cooled to crystallize. Recrystall |
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