Hexametapil

  • Hexamethyltriamidophosphite
  • Hexamethyltriaminophosphine
  • Trisdimethylaminophosphorus
  • Tris(dimethylamino)phosphine
  • Hexamethylphosphorous triamide
  • HMPT
Formula
P[N(CH3)2]3
Structure
Description
Colorless liquid.

Registry Numbers and Inventories.
CAS
1608-26-0
EC (EINECS/ELINCS)
216-534-4
EC Class
flammable
R 10 36/37/38
S 23 26 36
RTECS
TH3390000
RTECS class
Mutagen
UN (DOT)
1993
Beilstein/Gmelin
906778
Beilstein Reference
4-04-00-00274
Canada DSL/NDSL
DSL
US TSCA
Listed
New Zealand
Listed

Properties.
Formula
C6H18N3P
Formula mass
163.20
Melting point, °C
-44
Boiling point, °C
150
Vapor pressure, mmHg
3 (20 C)
Density
0.8962 g/cm3
Solubility in water
Very soluble
Viscosity
2.72 cp (30 C)
Surface tension
33.9 g/s2 (25 C)
Refractive index
1.4599
pKa/pKb
2.94 (pKb)
Heat of vaporization
61.10 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep container closed when not in use. Flammables-area. Storage under a nitrogen blanket has been recommended.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Disposal code
25
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, phosphine, carbon monoxide, oxides of phosphorus, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
43
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use water spray to cool fire-exposed containers. Use dry chemical, carbon dioxide, or alcohol-resistant foam.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
Vapor or mist is irritating to the mucous membranes and upper respiratory tract.
   Skin
Causes skin irritation.
   Eyes
Vapors cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. 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.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1993
Response guide
Hazard class
3
Packing Group
I; II; III
 
HS Code
2929 90 00