Product Identification

Product Name

Tetra-n-butyltin

Synonyms

Tetrabutyl stannane

CAS

1461-25-2

Formula

C16H36Sn

Molecular Weight

347.16

EINECS

215-960-8

RTECS

WH8605000

RTECS Class

Organometallic; Reproductive Effector; Primary Irritant

Beilstein/Gmelin

3648237

Beilstein Reference

4-04-00-04312

EC Class

irritant, dangerous for the environment

Physical and Chemical Properties

Appearance

Colorless liquid. Distinct, characteristic odor.

Solubility in water

Insoluble

Melting Point

-97

Boiling Point

145

Vapor Pressure

0.02 (25 C)

Density

1.055 g/cm3 (25 C)

Usage

Stabilizing & rust-inhibiting agent for silicones, lubricant & fuel additive, polymerization catalyst, hydrochloric acid scavenger.

Vapor Density

12

Refractive Index

1.47 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.

Hazards Identification

Inhalation

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. 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.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 21 25 36/38 48/23/25 50/53

EC Safety Phrase

S 35 36/37/39 45 60 61

UN (DOT)

2788

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles and a face shield. 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 gloves to prevent skin exposure. Clothing: Wear appropriate 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.

Exposure Effects

Reproductive effects have been reported in animals. Repeated or prolonged exposure may cause CNS stimulation.

Exposure limit(s)

OSHA TWA: 0.1 mg/m3

Poison Class

4

Fire Fighting Measures

Flash Point

>100

Autoignition

265

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Disposal Code

15

Incompatibilities

Oxidizing agents.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, tin/tin oxides.

Combustion Products

Toxic gases and vapors may be released in a fire involving organic tin compounds.

Transport Information

UN Number

2788

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2931 00 95