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Hexamethylphosphoramide

CAS 680-31-9C6H18N3OPMW 179.20

Hexamethylphosphoramide (CAS No. 680-31-9) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Organic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number680-31-9
Molecular FormulaC6H18N3OP
Molecular Weight179.20
Melting Point41 to 45 °F (NTP, 1992)
Boiling Point451 °F at 760 mmHg (NTP, 1992)
LogP0.3
Purity按批次COA提供(不公开发布)
Packaging按订单/批次确认(不公开发布)
ApplicationsOrganic Chemicals
CategoryOrganic Chemicals

Where it is used

Organic Chemicals

Packaging & Supply

Packaging按订单/批次确认(不公开发布)
Purity按批次COA提供(不公开发布)
StorageSealed, cool and dry place
Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Hexamethylphosphoramide?

The CAS number of Hexamethylphosphoramide is 680-31-9.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Hexamethylphosphoramide?

Main applications include Organic Chemicals.

How do I buy Hexamethylphosphoramide or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

Hexamethylphosphoramide · CAS 680-31-9 · C6H18N3OP. UNII M42TU5843Z. Boiling Point: 451 °F at 760 mmHg (NTP, 1992); Boiling Point: 233 °C @ 760 MM HG; Boiling Point: 232 °C.

Identification

CAS Registry Number680-31-9
PubChem CID12679
Molecular formulaC6H18N3OP
IUPAC nameN-[bis(dimethylamino)phosphoryl]-N-methylmethanamine
UNII (FDA)M42TU5843Z

Computed Descriptors

Molecular Weight179.20
XLogP30.3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count3
Exact Mass179.11874920
Monoisotopic Mass179.11874920
Topological Polar Surface Area26.8
Heavy Atom Count11
Formal Charge0

Physical & Chemical Properties

Boiling Point451 °F at 760 mmHg (NTP, 1992)
Boiling Point233 °C @ 760 MM HG
Boiling Point232 °C
Boiling Point451 °F
Boiling Point232.5 °C @760 [mm Hg]
Melting Point41 to 45 °F (NTP, 1992)
Melting PointFP: 5-7 °C
Melting Point7.2 °C
Melting Point43 °F
Flash Point222 °F (NTP, 1992)

Physical description & handling notes

  • Hexamethylphosphoramide is a clear colorless to light amber liquid with a spicy odor. (NTP, 1992)
  • Clear, colorless liquid with an aromatic or mild, amine-like odor. [Note: A solid below 43 degrees F.]; [NIOSH]
  • COLOURLESS MOBILE LIQUID.
  • Clear, colorless to light amber liquid with an aromatic or mild, amine-like odor.
  • COLORLESS, MOBILE LIQUID
  • Clear, colorless liquid [Note: A solid below 43 degrees F].

GHS Hazard Classification

Reported hazard statementsH340, H350, H303, H313, H315, H351, H361, H371

H340: May cause genetic defects [Danger Germ cell mutagenicity]

H350: May cause cancer [Danger Carcinogenicity]

Documented Uses

  • Hexamethylphosphoramide is no longer used in large quantities in the United States. Hexamethylphosphoramide was used in the past as a selective solvent for gases, a polymerization catalyst, a stabilizer against thermal degradation in polystyrene, and an additive to polyvinyl resins.
  • Used as a solvent for aromatic polyamide fibers; also used as a catalyst, stabilizer, and additive for polymers and resins; [ACGIH]
  • Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
  • Plastic Composites Manufacturing [Category: Industry]
  • PROCESSING SOLVENT FOR AROMATIC POLYAMIDE FIBER
  • DE-ICING ADDITIVE FOR JET FUELS; /EXPERIMENTAL/ CHEMOSTERILANT FOR A NUMBER OF INSECT PESTS; AS A CHEMICAL MUTAGEN

Synonyms

HEXAMETHYLPHOSPHORAMIDE; 680-31-9; HMPA; Hexamethylphosphoric triamide; Hexametapol; Hempa; HMPTA; Hexamethylphosphoric acid triamide; Phosphoric hexamethyltriamide; Hexamethylphosphorotriamide; Eastman Inhibitor HPT; Phosphoric triamide, hexamethyl-; Hexamethylphosphotriamide; Tris(dimethylamino)phosphine oxide; Hexamethylorthophosphoric triamide; Phosphoric acid hexamethyltriamide

Frequently Asked Questions

What are the CAS number and molecular formula of Hexamethylphosphoramide?

CAS 680-31-9; molecular formula C6H18N3OP; molecular weight — g/mol.

What other names is Hexamethylphosphoramide known by?

HEXAMETHYLPHOSPHORAMIDE, 680-31-9, HMPA, Hexamethylphosphoric triamide, Hexametapol, Hempa.

Is Hexamethylphosphoramide classified as hazardous?

Hazard statements reported: H340, H350, H303, H313, H315.

What are the key physical properties of Hexamethylphosphoramide?

Boiling Point: 451 °F at 760 mmHg (NTP, 1992); Boiling Point: 233 °C @ 760 MM HG; Boiling Point: 232 °C; Boiling Point: 451 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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