Tin(II) oxide

Tin(II) oxide
Names
IUPAC name
Tin(II) oxide
Other names
Stannous oxide
Tin monoxide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.040.439 Edit this at Wikidata
EC Number
  • 244-499-5
RTECS number
  • XQ3700000
UNII
  • InChI=1S/O.Sn
  • O=[Sn]
Properties
SnO
Molar mass 134.709 g/mol
Appearance black or red powder when anhydrous, white when hydrated
Density 6.45 g/cm3
Melting point 1,080 °C (1,980 °F; 1,350 K)[1]
insoluble
−19.0·10−6 cm3/mol
Structure
tetragonal
Thermochemistry
56 J·mol−1·K−1[2]
−285 kJ·mol−1[2]
Hazards
Flash point Non-flammable
NIOSH (US health exposure limits):
PEL (Permissible)
none[3]
REL (Recommended)
TWA 2 mg/m3[3]
IDLH (Immediate danger)
N.D.[3]
Safety data sheet (SDS) ICSC 0956
Related compounds
Other anions
Tin sulfide
Tin selenide
Tin telluride
Other cations
Carbon monoxide
Silicon monoxide
Germanium(II) oxide
Lead(II) oxide
Related tin oxides
Tin dioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tin(II) oxide (stannous oxide) is a compound with the formula SnO. It is composed of tin and oxygen where tin has the oxidation state of +2. There are two forms, a stable blue-black form and a metastable red form.

  1. ^ Tin and Inorganic Tin Compounds: Concise International Chemical Assessment Document 65, (2005), World Health Organization
  2. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.
  3. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0615". National Institute for Occupational Safety and Health (NIOSH).