Tin (white)

Formula
Sn
Structure
Description
Grey to almost silver-white, ductile, malleable lustrous solid, odorless.
Uses
For babbitt type metals.

Registry Numbers and Inventories.
CAS
7440-31-5
EC (EINECS/ELINCS)
231-141-8
RTECS
XP7320000
RTECS class
Tumorigen
Merck
12,9587
Beilstein/Gmelin
16300 (G)
Swiss Giftliste 1
G-6825
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Sn
Formula mass
118.69
Melting point, °C
232
Boiling point, °C
2270
Vapor pressure, mmHg
0.0000006 (800 C)
Density
7.16 g/cm3 (-0.15 C)
Solubility in water
Insoluble
Viscosity
1 cp (600 C)
Surface tension
544 g/s2 @ mp (231.9 C)
Thermal expansion
0.0000635/K
Heat of fusion
7.16 kJ/mol
Heat of vaporization
296.4 kj/mol

Hazards and Protection.
Storage
Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures. Oxidizes when exposed to air.
Incompatibilities
Halogens, nitric acid, sodium peroxide, sulfur, copper nitrate, hydrochloric acid, tin chloride, potassium peroxide.
Decomposition
Irritating and toxic fumes and gases, tin/tin oxides.

Fire.
Autoignition, °C
630
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Do NOT use carbon dioxide. If water is the only media available, use in flooding amounts. Use dry sand, dry chemical, soda ash or lime.
Health
1
 
Flammability
3
 
 
Reactivity
3
 

Health.
Exposure limit(s)
NIOSH REL*: TWA 2 mg/m3 OSHA PEL*: TWA 2 mg/m3 [*Note: REL and PEL also apply to other inorganic tin compounds (as Sn) except tin oxides.] IDLH 100 mg/m3 (as Sn)
Poison_Class
-
Exposure effects
Prolonged or repeated skin contact may cause dermatitis. Chronic exposure to tin oxide dusts and fumes may result in stannosis (benign pneumoconiosis).
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling. Ingested inorganic tin exhibits only moderate toxicity due to poor absorption and rapid tissue turnover. Ingestion of large amounts may cause gastrointestinal irritation, nausea, cramps, vomiting and diarrhea. May interfere with various enzyme systems. Inorganic tin salts may cause systemic effects on the central nervous system, heart and liver. It may also interfere with absorption and metabolism of biological essential enzyme systems.
   Inhalation
Dust is irritating to the respiratory tract. Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count. When inhaled as a dust or fume, may cause benign pneumoconiosis.
   Skin
May cause skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. Low hazard for usual industrial handling.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid if irritation or symptoms occur.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Transport.
HS Code
8005 00 00