chromiumnitride(cr2n)
chromium nitride
CAS: 12053-27-9
Molecular Formula: CrN
chromiumnitride(cr2n) - Names and Identifiers
chromiumnitride(cr2n) - Physico-chemical Properties
| Molecular Formula | CrN |
| Molar Mass | 66.0028 |
| Density | 6.800 |
| Melting Point | 1650°C |
| Water Solubility | Insoluble in water. |
| Appearance | Powder |
| Storage Condition | Room Temprature |
| MDL | MFCD00016048 |
chromiumnitride(cr2n) - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R42/43 - May cause sensitization by inhalation and skin contact. |
| Safety Description | S22 - Do not breathe dust. S36/37 - Wear suitable protective clothing and gloves. |
| TSCA | Yes |
chromiumnitride(cr2n) - Nature
Open Data Verified Data
CrN is cubic crystal, lattice constant a = 0. 4150nm, relative density 6.14, melting point 1282 ℃ (decomposition), volume resistivity 640.cm, thermal conductivity 11. 7W/(m.K), micro hardness 1090kg/mm2. Cr2 N is hexagonal, gray, lattice constant a = 0. 274nm, relative density 6.8. Chromium nitride is insoluble in water and acid. Chromium Nitride and chromium carbide form conductive solid solution at high temperature, and the volume resistivity is about 10-Zn. Cm. Has good adhesion, corrosion resistance and oxidation resistance.
Last Update：2024-01-02 23:10:35
chromiumnitride(cr2n) - Preparation Method
Open Data Verified Data
low carbon iron Chrome was nitrided in a vacuum heating furnace at 1150 ° C. To obtain crude iron nitride, which was further treated with sulfuric acid to remove iron impurities. After filtration, washing and drying, chromium nitride is obtained. It can also be prepared by the reaction of ammonia and chromium halide.
Last Update：2022-01-01 09:05:24
chromiumnitride(cr2n) - Use
Open Data Verified Data
used as an abrasion-resistant coating. The addition to mechanical parts and molds can enhance their lubricity and wear resistance. Higher surface hardness, lower friction coefficient and lower residual stress make it suitable for wear resistance, metal and metal friction.
Last Update：2022-01-01 09:05:24
chromiumnitride(cr2n) - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| production method | 1. nitriding low-carbon ferrochrome in a vacuum heating furnace at 1150 ℃ to obtain crude ferrochrome nitride, which is then treated with sulfuric acid to remove iron impurities. After filtration, washing and drying, chromium nitride is obtained. It can also be made by the reaction of ammonia and chromium halide. 2. Cr2N is prepared by heating high purity electrolytic chromium powder in a nitrogen stream of 150mmHg(1mmHg = 133.322Pa) column at 1060 ℃ for 160h, discharging nitrogen and quenching. 3. low carbon ferrochrome is crushed to <3mm, 1000kg is nitrided in a vacuum heating furnace at 1150 ℃ and nitrogen pressure of 0.0987MPa for 24 hours to obtain coarse ferrochrome nitride. After cold, it is crushed to <0.3mm, and 1000kg is taken for nitriding again at 950 ℃ (other conditions are the same as before). After cooling, it is crushed to <0.3mm, put into a 1m3 reactor, treated with sulfuric acid for 16 hours, and dissolved iron. Filtering, washing and drying. Recovery of 109kg chromium nitride, containing Cr 78.6%,N 219.7%,O 20.80%,Fe 0.59%,C 0.13%. It can also be made by the reaction of ammonia and chromium halide. |
Last Update：2024-04-10 22:29:15
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CAS: 12053-27-9
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CAS: 12053-27-9
Tel: 18301782025
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Mobile: 18021002903
QQ: 3008007409
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