Stannous chloride

  • Tin(II) chloride
  • Tin dichloride
Formula
SnCl2
Structure
Description
White crystalline solid, odorless.
Uses
Powerful reducing agent, particularly in manufacture of dyes, in tanning by galvanic methods, in liquor finishing of wire, in sensitizing of glass before metallizing, as soldering flux, as mordant in dyeing with cochineal, in manufacture of color pigments, pharmaceuticals, sensitized paper, lubricating oil additives, as tanning agent, in removing ink stains, in yeast revivers, reagent in analytical chemistry, as catalyst in organic reactions.

Registry Numbers and Inventories.
CAS
7772-99-8
EC (EINECS/ELINCS)
231-868-0
EC Class
harmful, irritant, sensitizing
R 22 34 37
S 26 36/37/39 45
RTECS
XP8700000
RTECS class
Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
1759
Merck
12,8939
Beilstein/Gmelin
9293 (G)
Swiss Giftliste 1
G-3080
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Cl2Sn
Formula mass
189.60
Melting point, °C
246
Vapor pressure, mmHg
275.5 (554.6 C)
Saturation Concentration
Approximtely zero
Density
3.354 g/cm3 (278 C)
Solubility in water
2700 g/L
Viscosity
7
Thermal expansion
0.000319/K
Heat of fusion
10.90 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. 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
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Disposal code
15
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong bases, bromine trifluoride, ethylene oxide, potassium, hydrogen peroxides, sodium, metal nitrates, calcium acetylide, chlorine, moisture, calcium carbide, anhydrous chlorides of iron, tin and aluminum., hydrazine hydrate, organic nitrates, turpentine.
Decomposition
Hydrogen chloride, irritating and toxic fumes and gases, tin/tin oxides.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Combustion products
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV (as tin): 2 mg/m3 (ACGIH 1997)
Poison_Class
2
Exposure effects
Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated exposure may cause adverse reproductive effects.
   Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause headache, nausea, fatigue, and dizziness. Inorganic tin salts may cause systemic toxic effects on the central nervous system, heart, and
   Inhalation
Irritation may lead to chemical pneumonitis and pulmonary edema. May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation. May cause effects similar to those described for ingestion.
   Skin
Causes skin irritation. Causes redness and pain.
   Eyes
May cause severe eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1759
Response guide
Hazard class
8
Packing Group
I; II; III
 
HS Code
2827 39 10
 
Std. Transport #
4936355