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Tin(II) oxide (as Sn)																				Related Pages
Synonyms & Trade Names
			Stannous oxide, Tin protoxide
					[Note: Also see specific listing for Tin(IV) oxide (as Sn).]
CAS No.
			21651-19-4
	RTECS No.
			XQ3700000
	DOT ID & Guide

FormulaSnO
	Conversion
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 2 mg/m3OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 7300 , 7301 , 7303
					
					See: NMAM or OSHA Methods
										
Physical Description
			Brownish-black powder.													
										
Molecular Weight134.7	
	Boiling PointDecomposes
	Melting Point(600 mmHg): 1976°F (Decomposes)
	SolubilityInsoluble
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity6.3	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA

Incompatibilities & Reactivities
			None reported
Exposure Routes
			inhalation, skin and/or eye contact
Symptoms
			Stannosis (benign pneumoconiosis): dyspnea (breathing difficulty), decreased pulmonary function
Target Organs
			respiratory system
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**No recommendation
							**Eyes:**No recommendation
							**Wash skin:**No recommendation
							**Remove:**No recommendation
							**Change:**No recommendation
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Breathing:**Fresh air
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0956

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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CAS Numbers
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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