TRIS(1-AZIRIDINYL) PHOSPHINE OXIDE

A colorless crystalline solid. Shipped as an aqueous solution. Toxic by skin absorption, ingestion or inhalation. Produces toxic oxides of nitrogen during combustion. Used as a pesticide.

• Polymerizable

No rapid reaction with air. No rapid reaction with water.

Special Hazards of Combustion Products: Phosphoric acid mist may form in fire. Toxic oxides of nitrogen may form. (USCG, 1999)

Inhalation (unlikely unless a heavy mist is formed) causes symptoms similar to those observed after ingestion. Contact with liquid or powder causes irritation of eyes and (on prolonged contact) irritation and burns of skin. Burns are slow to develop and slow to heal. May sensitize on repeated contact. Ingestion causes depression, anorexia, and diarrhea, appearing 2-3 days before death, followed by terminal dyspnea, incoordination, epistaxis, salivation, prostration and cyanosis. (USCG, 1999)

TRIS(1-AZIRIDINYL) PHOSPHINE OXIDE may react with aqueous solutions of acids or strong bases. Undergoes slow decomposition in water, not considered hazardous. Polymerizes violently at about 255°F. Acid fumes also cause polymerization at ordinary temperatures (USCG, 1999). May produce highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

• Esters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters
• Epoxides
• Polymerizable Compounds
• Water and Aqueous Solutions

Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below.

• Mineral-Based & Clay-Based Absorbents
• Dirt/Earth

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]:

SMALL FIRE: Dry chemical, CO2 or water spray.

LARGE FIRE: Water spray, fog or regular foam. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal. Avoid aiming straight or solid streams directly onto the product.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)

Protective clothing and gloves to prevent contact with skin; goggles. (USCG, 1999)

No information available.

INHALATION: remove victim to fresh air.

EYES: flush with water at once for at least 15 min.; get medical attention.

SKIN: flush with water at once, followed by vinegar and dilute hydrogen peroxide.

INGESTION: only symptomatic and supportive measures are available. (USCG, 1999)

• APHOXIDE
• APO
• 1-AZIRIDINYL PHOSPHINE OXIDE (TRIS)
• ENT 24915
• IMPERON FIXER T
• NSC 9717
• PHOSPHINE OXIDE, TRIS(1-AZIRIDINYL)-
• PHOSPHORIC ACID TRIETHYLENE IMIDE
• PHOSPHORIC ACID TRIETHYLENEIMIDE
• PHOSPHORIC TRIAMIDE, N,N',N''-TRI-1,2-ETHANEDIYL-
• TAPO
• TEF
• TEPA
• TRI(AZIRIDINYL)PHOSPHINE OXIDE
• TRI-(1-AZIRIDINYL)PHOSPHINE OXIDE, SOLUTION
• TRI-1-AZIRIDINYLPHOSPHINE OXIDE
• TRIAZIRIDINOPHOSPHINE OXIDE
• TRIAZIRIDINYLPHOSPHINE OXIDE
• TRIETHYLENEPHOSPHORAMIDE
• TRIETHYLENEPHOSPHOROTRIAMIDE
• TRIS(1-AZIRIDINE)PHOSPHINE OXIDE
• TRIS(1-AZIRIDINYL) PHOSPHINE OXIDE
• TRIS(1-AZIRIDINYL)PHOSPHINE OXIDE
• TRIS(AZIRIDINYL)PHOSPHINE OXIDE
• TRIS-(1-AZIRIDINYL) PHOSPHINE OXIDE
• TRIS-(1-AZIRIDINYL)PHOSPHINE OXIDE, SOLUTION