Tin(II) iodide

  • Stannous iodide
  • Stannous diiodide
  • Diiodotin
Formula
SnI2
Structure
Description
Red-orange powder
Uses
Used in two-step method for preparing organi/-inorganic perovskite thin films which exhibit uniform surfaces and strong photoluminescence.

Registry Numbers and Inventories.
CAS
10294-70-9
EC (EINECS/ELINCS)
233-667-3
61 20/21/22 36/37/38 42/43
53 22 26 36/37/39 45
RTECS
XQ3650000
RTECS class
Other
UN (DOT)
3260
Merck
12,8942
Beilstein/Gmelin
9335 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
I2Sn
Formula mass
372.52
Melting point, °C
320
Boiling point, °C
714
Vapor pressure, mmHg
7.6 (457 C)
Density
5.28 g/cm3 (25 C)
Solubility in water
17.2 g/L (50 C)
Dielectric constant
29.8 (28 C)
Heat of fusion
12.6 kJ/mol
Heat of vaporization
100.5 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong bases.
Decomposition
Iodine, Hydrogen iodide, Tin/tin oxides.

Fire.
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Toxic. May cause sensitization by inhalation and skin contact. May cause harm to the unborn child. Irritating to eyes, respiratory system and skin. Harmful by inhalation, in contact with skin and if swallowed. Target organ(s): Thyroid.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

Transport.
UN number
3260
Response guide
Hazard class
8
Packing Group
II