Stannic chloride

  • Tn(IV) chloride
  • Tin tetrachloride
Formula
SnCl4
Structure
Description
Stannic chloride, anhydrous is a colorless fuming liquid with a pungent odor.
Uses
As mordant, reviving colors, dehydrating agent in organic syntheses, stabilizer for colors & perfumes in soap, in dyeing of fabrics, weighting silk, tinning vessels, in ceramics to produce abrasion resistant or light reflecting coatings.

Registry Numbers and Inventories.
CAS
7646-78-8
EC (EINECS/ELINCS)
231-588-9
EC Index Number
050-001-00-5
EC Class
Corrosive; Dangerous for the Environment
R 34 52/53
S 7/8 26 45 61
RTECS
XP8750000
RTECS class
Mutagen
UN (DOT)
1827
Merck
12,8929
Beilstein/Gmelin
2435 (G)
Swiss Giftliste 1
G-3079
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Cl4Sn
Formula mass
260.50
Vapor pressure, mmHg
79.68 (50 C)
Vapor density (air=1)
9
Critical temperature
318.7
Critical pressure
37
Density
2.22 g/cm3
Solubility in water
Soluble, slowly reacts
Viscosity
0.58 cp (60 C)
Thermal expansion
0.003459/K
Heat of fusion
9.01 kJ/mol

Hazards and Protection.
Storage
Do not store near combustible materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Keep away from metals. Corrosives area. Do not get water inside containers.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get on skin or in eyes. Do not ingest or inhale. Do not allow contact with water.
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. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Provide ventilation. Do not get water inside containers.
Stability
Stable under normal temperatures and pressures. May decompose on exposure to moist air or water.
Incompatibilities
Amines, alcohols, sodium, potassium, plastics, metals, ethylene oxide.
Decomposition
Hydrogen chloride, tin/tin oxides.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustion generates toxic fumes. Use water spray to keep fire-exposed containers cool. Water Reactive. Contact with metals may evolve flammable hydrogen gas. Containers may explode if exposed to fire. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
May burn but does not ignite readily.
Hazards
May ignite combustibles (wood, paper, oil, clothing, etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases. Flammable/toxic gases may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.)Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water. Substance may be transported in a molten form.
Combustion products
Toxic gases and vapors may be released in a fire involving the tin chlorides and stannous sulfate.
Health
3
 
Flammability
0
 
 
Reactivity
1
 

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.
   Ingestion
May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. May cause corrosion and permanent tissue destruction of the esophagus and digestive tract. 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.
   Skin
May cause severe skin irritation with possible burns, especially if skin is wet or moist.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns.

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 immediately. Do NOT induce vomiting and seek IMMEDIATE MEDICAL ADVICE.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Get medical aid immediately. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
1827
Response guide
Hazard class
8
Packing Group
II
 
Std. Transport #
4932383