Silicon nitride
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- $12 - $1328
- Product name: Silicon nitride
- CAS: 12033-89-5
- MF: N4Si3
- MW: 140.2833
- EINECS:234-796-8
- MDL Number:MFCD00011230
- Synonyms:Silicon(IV) nitride, Electronic Grade, 99.85% (Metals basis), 90+% ^a-phase;Silicon nitrid;Denka Silicon Nitride SN-F 2;E 05;E 05 (nitride);E 10;E 10 (nitride);Silicon nitride powder, >=99.9% trace Metals basis
52 prices
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Brand
- aablocks
- Chem-Impex
- Labseeker
- Sigma-Aldrich
- Strem Chemicals
- Thermo Scientific Chemicals
Package
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- 4.5G
- 5g
- 10g
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- Manufactureraablocks
- Product numberAA009RHV
- Product descriptionSilicon nitride β-phase,99.9%,1-3μm
- Packaging500g
- Price$61
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA009RHV
- Product descriptionSilicon nitride ≥95%
- Packaging50g
- Price$22
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA009RHV
- Product descriptionSilicon nitride ≥99.9%metalsbasis
- Packaging10g
- Price$12
- Updated2026-05-28
- Buy
- ManufacturerChem-Impex
- Product number47223
- Product descriptionSilicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis)
- Packaging500G
- Price$829.4
- Updated2026-05-19
- Buy
- ManufacturerChem-Impex
- Product number47222
- Product descriptionSilicon nitride powder (0.5~1 micron) ≥99.5%(Tracemetalsbasis)
- Packaging500G
- Price$660
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47221
- Product descriptionSilicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis)
- Packaging25G
- Price$126.4
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47223
- Product descriptionSilicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis)
- Packaging25G
- Price$158.8
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47222
- Product descriptionSilicon nitride powder (0.5~1 micron) ≥99.5%(Tracemetalsbasis)
- Packaging100G
- Price$168
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47221
- Product descriptionSilicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis)
- Packaging100G
- Price$186.4
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47223
- Product descriptionSilicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis)
- Packaging100G
- Price$223.6
- Updated2026-05-19
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- ManufacturerChem-Impex
- Product number47221
- Product descriptionSilicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis)
- Packaging500G
- Price$453.6
- Updated2026-05-19
- Buy
- ManufacturerLabseeker
- Product numberSC-66878
- Product descriptionNanosiliconnitride 95
- Packaging1kg
- Price$583
- Updated2021-12-16
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- ManufacturerLabseeker
- Product numberSC-66878
- Product descriptionNano silicon nitride 95
- Packaging1kg
- Price$583
- Updated2026-05-23
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- ManufacturerSigma-Aldrich
- Product numberGF99991300
- Product descriptionSilicon nitride powder, weight 200?g, 10 max. part. size (micron), condition alpha si3n4 (85% minimum)
- Packaging1EA
- Price$588
- Updated2026-04-30
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- ManufacturerSigma-Aldrich
- Product numberNIST656
- Product descriptionSilicon nitride powders NIST? SRM? 656, for quantitative analysis by powder diffraction
- Packaging2x10g
- Price$851
- Updated2022-05-15
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- ManufacturerSigma-Aldrich
- Product numberNIST1900
- Product descriptionSilicon nitride powder - specific surface area standard NIST? SRM? 1900
- Packaging4g
- Price$852
- Updated2026-04-30
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA009RHV | Silicon nitride β-phase,99.9%,1-3μm | 500g | $61 | 2026-05-28 | Buy |
| aablocks | AA009RHV | Silicon nitride ≥95% | 50g | $22 | 2026-05-28 | Buy |
| aablocks | AA009RHV | Silicon nitride ≥99.9%metalsbasis | 10g | $12 | 2026-05-28 | Buy |
| Chem-Impex | 47223 | Silicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis) | 500G | $829.4 | 2026-05-19 | Buy |
| Chem-Impex | 47222 | Silicon nitride powder (0.5~1 micron) ≥99.5%(Tracemetalsbasis) | 500G | $660 | 2026-05-19 | Buy |
| Chem-Impex | 47221 | Silicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis) | 25G | $126.4 | 2026-05-19 | Buy |
| Chem-Impex | 47223 | Silicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis) | 25G | $158.8 | 2026-05-19 | Buy |
| Chem-Impex | 47222 | Silicon nitride powder (0.5~1 micron) ≥99.5%(Tracemetalsbasis) | 100G | $168 | 2026-05-19 | Buy |
| Chem-Impex | 47221 | Silicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis) | 100G | $186.4 | 2026-05-19 | Buy |
| Chem-Impex | 47223 | Silicon nitride nanofibers (100nmX800 nm) ≥99%(Tracemetalsbasis) | 100G | $223.6 | 2026-05-19 | Buy |
| Chem-Impex | 47221 | Silicon nitride nanopowder (Amorphous) (20 nm) ≥99%(Tracemetalsbasis) | 500G | $453.6 | 2026-05-19 | Buy |
| Labseeker | SC-66878 | Nanosiliconnitride 95 | 1kg | $583 | 2021-12-16 | Buy |
| Labseeker | SC-66878 | Nano silicon nitride 95 | 1kg | $583 | 2026-05-23 | Buy |
| Sigma-Aldrich | GF99991300 | Silicon nitride powder, weight 200?g, 10 max. part. size (micron), condition alpha si3n4 (85% minimum) | 1EA | $588 | 2026-04-30 | Buy |
| Sigma-Aldrich | NIST656 | Silicon nitride powders NIST? SRM? 656, for quantitative analysis by powder diffraction | 2x10g | $851 | 2022-05-15 | Buy |
| Sigma-Aldrich | NIST1900 | Silicon nitride powder - specific surface area standard NIST? SRM? 1900 | 4g | $852 | 2026-04-30 | Buy |
Properties
Melting point :1900 °C
Density :3.44 g/mL at 25 °C (lit.)
bulk density :0.046g/mL
refractive index :2.8
RTECS :VW0650000
form :powder
color :Pale gray
Specific Gravity :3.44
Resistivity :10*6 (ρ/μΩ.cm)
Water Solubility :Insoluble water.
Thermal Conductivity :1.548 W/(m·K) (70 pc dense); 7.95 W/(m·K) (85 pc dense)
Crystal Structure :Hexagonal
Hydrolytic Sensitivity :1: no significant reaction with aqueous systems
Merck :14,8497
Stability :Stable.
InChI :1S/N4Si3/c1-5-2-6(1)3(5)7(1,2)4(5)6
InChIKey :HQVNEWCFYHHQES-UHFFFAOYSA-N
SMILES :N12[Si]34N5[Si]16N3[Si]25N46
Modulus of Elasticity :120 - 150 GPa
Poissons Ratio :0.20
Hardness, Vickers :1600
Shear Modulus :50.0 - 62.5 GPa, Calculated
CAS DataBase Reference :12033-89-5(CAS DataBase Reference)
EPA Substance Registry System :Silicon nitride (Si3N4) (12033-89-5)
Density :3.44 g/mL at 25 °C (lit.)
bulk density :0.046g/mL
refractive index :2.8
RTECS :VW0650000
form :powder
color :Pale gray
Specific Gravity :3.44
Resistivity :10*6 (ρ/μΩ.cm)
Water Solubility :Insoluble water.
Thermal Conductivity :1.548 W/(m·K) (70 pc dense); 7.95 W/(m·K) (85 pc dense)
Crystal Structure :Hexagonal
Hydrolytic Sensitivity :1: no significant reaction with aqueous systems
Merck :14,8497
Stability :Stable.
InChI :1S/N4Si3/c1-5-2-6(1)3(5)7(1,2)4(5)6
InChIKey :HQVNEWCFYHHQES-UHFFFAOYSA-N
SMILES :N12[Si]34N5[Si]16N3[Si]25N46
Modulus of Elasticity :120 - 150 GPa
Poissons Ratio :0.20
Hardness, Vickers :1600
Shear Modulus :50.0 - 62.5 GPa, Calculated
CAS DataBase Reference :12033-89-5(CAS DataBase Reference)
EPA Substance Registry System :Silicon nitride (Si3N4) (12033-89-5)
Safety Information
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Description
Silicon nitride (molecular formula Si3N4) is a kind of chemical compound comprised of both silicon and nitrogen elements. It appears as a white solid with a high melting point. It is chemically stable upon the presence of dilute HF and hot H2SO4. It has a series of properties such as high strength among a wide temperature range, high fracture toughness, high hardness, outstanding wear resistance and chemical property. It has a strikingly high thermal shock resistance. It has a wide applications in various kinds of fields. In automobile industry, it is an important materials for engine parts. It can also be applied to the manufacturing of bearings due to its high shock resistance. For example, in spacecraft, silicon nitride ceramic is capable of surviving the severe thermal shock generated in the hydrogen/oxygen rocket engines. It can also be used as abrasive and cutting tools due to its harness and resistance to wear. In electronics, it can be used as an insulator and chemical barrier during the production of integrated circuits. There are several method for the manufacturing the silicon nitride. 1. The powdered silicon is subject to a heating reaction of 1300-1400 °C in the atmosphere of nitrogen. 2 Diimide route which involves the reaction of SiCl and NH3. 3 Silicon dioxide is subject to carbothemral reduction at 1300-1400 °C under the presence of nitrogen.Related product price
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Suppliers and manufacturers
Sense Chemicals (Shanghai) Co., Ltd.
Henan Tianfu Chemical Co.,Ltd.
CONIER CHEM AND PHARMA LIMITED
SIMAGCHEM CORP
Hefei TNJ Chemical Industry Co.,Ltd.
Shaanxi Dideu Medichem Co. Ltd
Baoji Guokang Healthchem co.,ltd
Hengshui Haoye Co.,Ltd.
Silicon nitride
CAS:12033-89-5