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| CAS No.: | 12033-89-5 |
|---|---|
| Name: | Trisilicon tetranitride (alpha) |
| Molecular Structure: | |
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|
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| Formula: | N4Si3 |
| Molecular Weight: | 140.28 |
| Synonyms: | Silicon Nitride Nanopowder |
| EINECS: | 234-796-8 |
| Density: | 2.82 g/cm3 |
| Melting Point: | 1900 °C |
| Appearance: | slightly beige powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | R37 |
| PSA: | 12.96000 |
| LogP: | -2.66560 |
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- 1203-41-4[1,1'-Biphenyl]-2-amine,2'-methyl-
- 12034-15-0Sodium tantalum oxide (NaTaO3)
- 12034-34-3disodium; oxygen(-2) anion; titanium(+4) cation
- 12034-36-5Sodium titanium oxide
- 12034-39-8Sodium sulfide(Na2(S4))
- 12034-57-0Niobium oxide (NbO)
- 12034-59-2Niobium oxide (NbO2)
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Specification
The Silicon nitride (Si3N4), with its CAS registry number 12033-89-5, has the systematic name of hexacyclo[3.1.1.0~1,4~.0~2,5~.0~3,6~.0~3,7~]trisilazane. With the molecular foumula of N4Si3, its formula weight is 140.28. This chemical is stable and this is a kind of slightly beige powder. Besides, its product categories are including Inorganics; Metal and Ceramic Science; Nitrides; 14:Si; NitridesNanomaterials; Ceramics; Materials Science; Nanomaterials. With high thermal stability, thermal shock resistance, chemical stability and good electrical insulation, it is soluble in hydrofluoric acid while insoluble in cold and hot water and dilute acids. The usual making method in large-scale industrial production could go through as the following chemical equation: SiO2+C=SiO+CO; 3SiO2+3C+N2=Si3N4+3CO.
The characteristics of Silicon nitride (Si3N4) are as follows: (1)#H bond acceptors: 4; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 12.96 Å2; (5)Index of Refraction: 2.5; (6)Molar Refractivity: 31.58 cm3; (7)Molar Volume: 49.6 cm3; (8)Polarizability: 12.51×10-24cm3; (9)Surface Tension: 60.4 dyne/cm; (10)Density: 2.82 g/cm3; (11)Exact Mass: 139.943076; (12)MonoIsotopic Mass: 139.943076; (13)Topological Polar Surface Area: 13; (14)Heavy Atom Count: 7; (15)Complexity: 154; (16)Covalently-Bonded Unit Count: 1.
When comes to its usage, it has many ways. It could be used as the engineering ceramic material, such as ultra high temperature and gas turbine aircraft engines; It could also be used as the electrical insulating material; And it could be then used as the raw materials of precision ceramics.
When you are dealing with this chemical, you should be careful. Being irritating to respiratory system, it may cause inflammation to the skin or other mucous membranes. Therefore, you should avoid contacting with skin and eyes and then do not breathe dust.
What's more, the following datas could be converted into the molecular structure:
(1)Canonical SMILES: N12[Si]34N5[Si]16N3[Si]25N46
(2)InChI: InChI=1S/N4Si3/c1-5-2-6(1)3(5)7(1,2)4(5)6
(3)InChIKey: HQVNEWCFYHHQES-UHFFFAOYSA-N
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