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680-31-9

680-31-9 structural image
Product Name: Hexamethylphosphoramide
Formula: C6H18N3OP
Synonyms: Hexamethylphosphoric acid triamide;HMPA;Tris(dimethylamino)phosphine oxide
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Hexamethylphosphoramide is a clear colorless to light amber liquid with a spicy odor. (NTP, 1992)
Color/Form COLORLESS, MOBILE LIQUID
Odor AROMATIC ODOR
Boiling Point 451 °F at 760 mmHg (NTP, 1992)
Melting Point 41 to 45 °F (NTP, 1992)
Flash Point 222 °F (NTP, 1992)
Solubility greater than or equal to 100 mg/mL at 64 °F (NTP, 1992)
Density 1.024 at 77 °F (NTP, 1992) - Denser than water; will sink
Vapor Density 6.18 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
Vapor Pressure 0.07 mmHg at 77 °F (NTP, 1992)
Stability/Shelf Life REACTS UPON HEATING WITH ORG ACIDS TO FORM THE DIMETHYLAMIDE OF THE ORG ACID
Decomposition When heated to decomposition it emits very toxic fume of /phosphine, phosphorus oxides and nitrogen oxides/.
Refractive Index INDEX OF REFRACTION: 1.4572 @ 21 °C/D
Other Experimental Properties DOES NOT HYDROLYZE IN ALKALINE MEDIA BUT HYDROLYZES SLOWLY IN ACIDS
Chemical Classes Other Classes -> Phosphorus Compounds

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Corrosion
Corrosives
GHS05

Health Hazard
GHS08
GHS Hazard Statements H314:Skin corrosion/irritation
H340:Germ cell mutagenicity
H350:Carcinogenicity
Precautionary Statement Codes P202:Do not handle until all safety precautions have been read and understood.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

COMPUTED DESCRIPTORS

Molecular Weight 179.20 g/mol
XLogP3 0.3
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 4
Rotatable Bond Count 3
Exact Mass 179.11874920 g/mol
Monoisotopic Mass 179.11874920 g/mol
Topological Polar Surface Area 26.8 Ų
Heavy Atom Count 11
Formal Charge 0
Complexity 139
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Hexamethylphosphoramide is a clear colorless to light amber liquid with a spicy odor. (NTP, 1992)

RELATED SUPPLIERS

Pallav Chemicals And Solvents Pvt Ltd

1Y
product:680-31-9 Hexamethylphosphoric Acid Triamide 98.5% (HMPA) 99%

Molychem

Mumbai
product:Hexamethylphosphoric triamide
All suppliers(2)