Bayville Chemical Supply Company Inc 70-G East Jefryn Boulevard Deer Park, New York, 11729 USA Telephone: 631-586-4309 Fax: 631-254-5591 E-Mail:
Bayville Chemical Supply Company Inc70-G East Jefryn BoulevardDeer Park, New York, 11729  USA           Telephone: 631-586-4309      Fax: 631-254-5591      E-Mail:



Silicon Nitride

Silicon (IV) Nitride 85% min. α phase


Silicon Nitride Powder is gray to white in color. It has high temperature strength, superior toughness, strong hardness, excellent abrasion resistance, good thermal shock resistance, smaller thermal expansion coefficient, good corrosion resistance, smaller shrinkage by reheating, good chemical resistance, and good high-temperature insulation properties.


Typical Applications:

Heat engine parts, nozzles, bearings, valves, armor, power generating turbines, machine bearings, heat and corrosion resistant jigs, plastics filler, high temperature insulation materials, specialrefractories, surface reforming, and electronic materials


Physical and Chemical Properties:

                             Formula:                       Si3N4

                             Typical Chemistry:       Si= 59.4%, N= 38.2%

                             Phase:                          85% min. alpha phase

                             Purity:                            99.8% (metals basis)

                             CAS #:                          [12033-89-5]

                             Formula Weight:          140.28

                             Density:                        3.44 gm/cm3

                             Melting Point:               1900oC (subl.)

                             Form:                            Amorphous Powder,

                             Particle Size:                1 – 5 microns



Package Sizes Available:              500 grams

                                                                1000 grams       

                                                Inquire for larger quantities


Where to Find Us:

Bayville Chemical
70 East Jefryn Boulevard
Suite G
Deer Park, NY 11729

Phone: 631 586-4309

What's New

New larger location

As of August 2014, we have moved to this new, larger, modern facility to better service your needs.


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