Silicon nitride
Description References- Product Name
- Silicon nitride
- CAS No.
- 12033-89-5
- Chemical Name
- Silicon nitride
- Synonyms
- Si3N4 SILICON NITRIDE;silicon(iv) nitride, electronic grade;E 05;E 10;β-Si3N4;α-Si3N4;SI3N4 B7;SI3N4 M11;ALPHA HYDROXY;E 05 (nitride)
- CBNumber
- CB8744847
- Molecular Formula
- N4Si3
- Formula Weight
- 140.2833
- MOL File
- 12033-89-5.mol
Silicon nitride Property
- Melting point:
- 1900 °C
- Density
- 3.44 g/mL at 25 °C (lit.)
- RTECS
- VW0650000
- refractive index
- 2.8
- form
- powder
- color
- Pale gray
- Specific Gravity
- 3.44
- Resistivity
- 10*6 (ρ/μΩ.cm)
- Water Solubility
- Insoluble water.
- Hydrolytic Sensitivity
- 1: no significant reaction with aqueous systems
- Crystal Structure
- Hexagonal
- Merck
- 14,8497
- Stability:
- Stable.
- CAS DataBase Reference
- 12033-89-5(CAS DataBase Reference)
- EPA Substance Registry System
- Silicon nitride (Si3N4) (12033-89-5)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- NISTRM8983
- Product name
- Silicon nitride
- Purity
- NIST? RM 8983
- Packaging
- 4.5G
- Price
- $1130
- Updated
- 2024/03/01
- Product number
- NIST1900
- Product name
- Silicon nitride powder - specific surface area standard
- Purity
- NIST? SRM? 1900
- Packaging
- 4g
- Price
- $743
- Updated
- 2024/03/01
- Product number
- GF99991300
- Product name
- Silicon nitride
- Purity
- powder, weight 200?g, 10 max. part. size (micron), condition alpha si3n4 (85% minimum)
- Packaging
- 1EA
- Price
- $381
- Updated
- 2024/03/01
- Product number
- 248622
- Product name
- Silicon nitride
- Purity
- predominantly β-phase, ≤10micron primary particle size
- Packaging
- 100g
- Price
- $108
- Updated
- 2024/03/01
- Product number
- 248622
- Product name
- Silicon nitride
- Purity
- predominantly β-phase, ≤10micron primary particle size
- Packaging
- 500g
- Price
- $434
- Updated
- 2024/03/01
Silicon nitride Chemical Properties,Usage,Production
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.
References
https://en.wikipedia.org/wiki/Silicon_nitride
http://accuratus.com/silinit.html
Chemical Properties
slightly beige powder
Physical properties
Gray amorphous powder or crystals. Resistant to thermal shock. Good oxidation resistance up to 1500°C but decomposes into nitrogen and silicon above 1850°C. Excellent corrosion resistance to molten nonferrous metals such as Al, Pb, Zn, Cd, Bi, Rb, and Sn, and molten salts like NaCl-KCl, NaF, and silicate glasses. However, corroded by molten Mg, Ti, V, Cr, Fe, and Co, cryolite, KOH, and Na2 O.
Uses
As high tempereture engineering material for use in gas turbines, diesel engines.
Uses
Silicon nitride (Si3N4), resistant to oxidation, is an excellent coating for metals, as well as an adhesive and abrasive, and it is used in high-temperature crucibles. It has proven useful as heat-resistant substance for the nozzles on rocket engines.
Uses
Silicon Nitride is used in preparation of thermal conductive Poly(Me Methacrylate)/Silicon Nitride nanocomposites via click chemistry.
General Description
Silicon nitride based ceramics possess high fracture toughness, hardness and wear resistance, resistance to corrosion, thermal stability. Two known polymorphs of silicon nitride exist, alpha and beta Si3N4, both have hexagonal structure. A study shows that a third state, cubic spinel structure, has also been synthesized.
Flammability and Explosibility
Non flammable
Silicon nitride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Silicon nitride manufacturers
- Product
- Silicon nitride 12033-89-5
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton/month
- Release date
- 2022-10-17
- Product
- Silicon nitride 12033-89-5
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000kg
- Release date
- 2022-09-26
- Product
- Tantalum carbide 12033-89-5
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000kg
- Release date
- 2022-09-26