TRIETHYL PHOSPHITE

A clear colorless liquid with a strong foul odor. Flash point 130°F. Less dense than water and insoluble in water. Vapors heavier than air.

• Highly Flammable

Flammable. Insoluble in water.

Special Hazards of Combustion Products: May form hazardous decomposition products. (USCG, 1999)

Exposure to high concentrations may cause headache, nausea, and dizziness due to reduced chlolinesterase activity. (USCG, 1999)

TRIETHYL PHOSPHITE is colorless, moderately toxic liquid, combustible. Flammable when exposed to heat or flame. When heated to decomposition it emits toxic fumes of oxides of phosphorus [Lewis, 3rd ed., 1993, p. 1271].

• Sulfonates, Phosphonates, and Thiophosphonates, Organic
• Reducing Agents, Weak

No information available.

Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:

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

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

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 130 [Flammable Liquids (Water-Immiscible / Noxious)]:

CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.

SMALL FIRE: Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.

LARGE FIRE: Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. 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 130 [Flammable Liquids (Water-Immiscible / Noxious)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)

Self-contained breathing apparatus, rubber gloves and rubber boots. (USCG, 1999)

No information available.

INHALATION: CALL FOR MEDICAL ASSISTANCE. Remove to fresh air. Treat symptomatically. If not breathing, give artificial respiration.

INGESTION: If swallowed and victim is conscious, have victim drink 1-2 glasses of milk or water and induce vomiting. If unconscious, do nothing except keep victim warm.

EYES: Flush with water for 15 minutes.

SKIN: Flush affected area with soap and plenty of water. (USCG, 1999)

• PHOSPHOROUS ACID, TRIETHYL ESTER
• TRIETHOXYPHOSPHINE
• TRIETHYL PHOSPHITE
• TRIS(ETHOXY)PHOSPHINE