Phosphonitrilic chloride trimer Chemical Properties

Melting point:

112-115 °C(lit.)

Boiling point:

127 °C (13 mmHg)

Density 

1.98 g/mL at 25 °C(lit.)

Water Solubility 

Insoluble in water

solubility 

reacts with H2O

pka

-12.98±0.10(Predicted)

form 

crystal

Specific Gravity

1.98

color 

white

Sensitive 

Moisture Sensitive

CAS DataBase Reference

940-71-6(CAS DataBase Reference)

NIST Chemistry Reference

1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-(940-71-6)

EPA Substance Registry System

1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro- (940-71-6)

Safety Information

Hazard Codes 

C

Risk Statements 

14-34-20/21/22

Safety Statements 

26-36/37/39-45-7/8-41

RIDADR 

UN 3260 8/PG 2

WGK Germany 

3

F 

21

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

28530090

MSDS

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Phosphonitrilic chloride trimer Usage And Synthesis

Chemical Properties

white crystalline powder

Uses

Reagent for the synthesis of ″dandelion″ (spherical) dendrimers. Ring-opening polymerization, ligand and/or ligand precursor for transition metals, and the study of P-Cl bond substitution reactions are among the interesting uses for this product.

Preparation

Hexachlorocyclotriphosphazene (PNCl2)3 (mp114 ℃, bp 256℃), which is produced on an industrial scale as the starting material for the manufacture of organosubstituted polyphosphazenes. It forms an almost planar six-membered ring with equal P?N bond lengths.

Purification Methods

Purify it by zone melting, by crystallisation from pet.ether, n-hexane or *benzene, and by sublimation. [van der Huizen et al. J Chem Soc, Dalton Trans 1311 1986, Meirovitch et al. J Phys Chem 88 1522 1984, Alcock et al. J Am Chem Soc 106 5561 1984; Winter & van de Grampel J Chem Soc, Dalton Trans 1269 1986.] Phosphoric acid [7664 -38 -2] M 98.0, m 42.3o, pK 1 2.15, pK 2 7.21, pK 3 12.37. Pyrophosphate can be removed from phosphoric acid by diluting with distilled H2O and refluxing overnight. By cooling to 11o and seeding with crystals obtained by cooling a few millilitres in a Dry-ice/acetone bath, 85% orthophosphoric acid crystallises as H3PO4.H2O. The crystals are collected on a sintered glass filter. [Weber & King Inorg Synth I 101 1939.]

Phosphonitrilic chloride trimer(940-71-6)Related Product Information

• Benzyltriphenylphosphonium chloride
• HEXACHLOROBENZENE
• Polyvinyl chloride
• Chlorodiphenylphosphine
• Phosphorus oxychloride
• Benzyl chloride
• Ammonium chloride
• Choline chloride
• Mepiquat chloride
• Calcium chloride
• Sodium chloride
• Hexachloroethane
• Tetrakis(hydroxymethyl)phosphonium chloride
• Hexachloroacetone
• Methylene Chloride
• Hexachlorocyclopentadiene
• STRATOSPHERES(TM) PL-PPZ (PIPERAZINE) RESIN
• PL-PPZ RESIN,PL-PPZ MP-RESIN
• Phosphonitrilic Chloride