Product Catalog
CAS Number: 593-90-8

93-0567

Boron › Trimethylborane, 98%

Price Note: price inc. non-ret. cyl.

Safety: Hazardous, pyrophoric

Physical Characteristics: melting point -161.5°C, boiling point -20.2°C, density 0.625 (-100°C)

Transportation: Boat, truck. See MSDS sheet.

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SECTION 1: Product Identification
Chemical Name:	Trimethylborane, 98%
Product Number:	93-0567
CAS Registry Number:	593-90-8
Formula:	(CH3)3B
EINECS Number:	209-816-3
Chemical Family:	metal alkyl
Synonym:	Trimethylborane, Trimethylborine

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	593-90-8	100	no data	no data

SECTION 3: Hazards Identification
Emergency Overview:	Contact of this pyrophoric gas with human tissue will result in fire and thermal burns. Inhalation of boron oxide smoke may cause irritation, coughing, wheezing, and sore throat. Toxic by inhalation.
Primary Routes of Exposure:	Eyes, skin, and inhalation of combustion products.
Eye Contact:	Direct contact of gas with the eyes will cause thermal burns and possible blindness.
Skin Contact:	Gas bursts in to flame in air. Contact with skin will therefore cause thermal burns.
Inhalation:	Vapor and smoke may be irritating to the nose, mucous membranes and respiratory tract. Toxic by inhalation.
Ingestion:	Ingestion is an unlikely mode of entry as the material is pyrophoric.
Acute Health Effects:	May be irritating to skin, eyes and respiratory tract and cause eye, skin burns, dyspnea (breathing difficulty), and pulmonary edema. Gas may cause thermal burns.
Chronic Health Effects:	No information available on long-term chronic effects.
NTP:	No
IARC:	No
OSHA:	No

SECTION 4: First Aid Measures
Eye Exposure:	Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure:	Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation:	Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion:	Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:	<0°C
Autoignition Temperature:	Pyrophoric
Explosion Limits:	no data
Extinguishing Medium:	Water spray, foam, dry chemical. Fire may reignite.
Special Fire Fighting Procedures:	Material will spontaneously ignite when exposed to air. Fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products:	If involved in a fire this material may emit toxic organic fumes, carbon monoxide, and boron oxide smoke.
Unusual Fire or Explosion Hazards:	Pyrophoric gas. Material will spontaneously ignite when exposed to air.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:	If spilled the product will ignite releasing a dense white smoke. Fight fire using specified techniques and protective gear.

SECTION 7: Handling and Storage
Handling and Storage:	Store in a steel cylinder under dry argon or nitrogen in a cool area. Transfer under argon using metal, not plastic materials. Purge with inert gas before disassembling used piping.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:	Always wear approved safety glasses. In addition a face shield should be worn when handling this material.
Skin Protection:	Wear protective clothing and loose fitting gloves. Consult with glove manufacturer to determine the proper type of glove.
Ventilation:	This product must only be handled in an efficient fume hood.
Respirator:	In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection:	Fire resistant apron recommended

SECTION 9: Physical and Chemical Properties
Color and Form:	colorless gas
Molecular Weight:	55.92
Melting Point:	-161.5°C
Boiling Point:	-20.2°C
Vapor Pressure:	no data
Specific Gravity:	0.625 (-100�)
Odor:	Pungent odor
Solubility in Water:	insoluble

SECTION 10: Stability and Reactivity
Stability:	pyrophoric
Hazardous Polymerization:	no hazardous polymerization
Conditions to Avoid:	Pyrophoric. Will ignite if exposed to air. In absence of air, thermal stability poor over 94�C.
Incompatibility:	Air, oxidizing agents, halogenated hydrocarbons, and halogens.
Decomposition Products:	carbon dioxide, carbon monoxide, organic fumes, and boron oxides.

SECTION 11: Toxicological Information
RTECS Data:	No specific information available on this product.
Carcinogenic Effects:	No data available
Mutagenic Effects:	No data available
Tetratogenic Effects:	No data available

SECTION 12: Ecological Information
Ecological Information:	No information available

SECTION 13: Disposal Considerations
Disposal:	Dispose of according to local, state and federal regulations.

SECTION 14: Transportation
Shipping Name (CFR):	Compressed gas, Toxic, Flammable, N.O.S.
Hazard Class (CFR):	2.3
Additional Hazard Class (CFR):	2.1
Packaging Group (CFR):	NA
UN ID Number (CFR):	UN# 1953
Shipping Name (IATA):	Prohibited
Hazard Class (IATA):	NA
Additional Hazard Class (IATA):	NA
Packaging Group (IATA):	NA
UN ID Number (IATA):	UN# 3203

SECTION 15: Regulatory Information
TSCA:	Not listed in the TSCA inventory.
SARA (Title 313):	Title compound not listed.
Second Ingredient:	none
Third Ingredient:	none

SECTION 16: Other Information
Disclaimer:	The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date:	6/25/2001
Revision Date:	1/26/2012