Dinitrogen is an elemental molecule consisting of two trivalently-bonded nitrogen atoms.
产品中实际含有多少
暂无产品标示该成分含量。
含该成分的产品中，0 款将其列在 1% 线之前，6 款列在之后（通常不超过 1%）。
含有此成分的产品
已确认 6 款中的 6 款 · 按含量充足程度排序
定义
Dinitrogen is an elemental molecule consisting of two trivalently-bonded nitrogen atoms. It has a role as a member of food packaging gas and a food propellant. It is a gas molecular entity, an elemental molecule and a diatomic nitrogen. It is a conjugate base of a diazynium.
来源: PubChem
美国FDA 物质登记 · UNII H5BQW2XYQ6 · 登记名称 NITROGEN, LIQUID · 规定规格的物质
化妆品中的作用
安全与法规参考
未列入韩国有毒物质 GHS 分类 · 现有化学物质
Other restriction: ban substances that deplete the ozone layer
来源: 欧盟 CosIng 成分清单
详细资料——标示名称、识别编号、物性、试验记录、文献
官方标示名称和定义
日本化妆品工业联合会标示名称 窒素: 本品は、気体の分子である。地球大気の約78％は窒素からなる。
来源: 日本化妆品工业联合会标示名称
别名和识别信息
- CAS No.化学物质登记号
- 7727-37-9
- EC No.欧盟化学品目录编号
- 231-783-9
- DTXSID美国EPA化学品编号
- DTXSID4036304
- DTXCID美国EPA化合物编号
- DTXCID6015504
- IUPAC
- Dinitrogen
- 分子式
- N2
- 分子量
- 28.014 g/mol
实测物性
- 性状
- Nitrogen appears as a colorless odorless gas. Noncombustible and nontoxic. Makes up the major portion of the atmosphere, but will not support life by itself. Used in food processing, in purging air conditioning and refrigeration systems, and in pressurizing aircraft tires. May cause asphyxiation by displacement of air. Under prolonged exposure to fire or heat containers may rupture violently and r · Nitrogen, refrigerated liquid (cryogenic liquid) appears as colorless odorless liquid. Very cold. Contact may cause frostbite. Nontoxic. Under prolonged exposure to heat or fire the container may rupture violently and rocket. Used to freeze foods, to preserve whole blood and other biologicals, and as a coolant.
- 气味
- Odorless gas · 无臭
- 沸点
- -320.1 °F at 760 mmHg (USCG, 1999) · -195.79 °C (77.36 K)
- 熔点
- -354 °F (USCG, 1999) · -210.01 °C (63.14K)
- 溶解性
- In water, 1.81X10+4 mg/L at 21 °C · Insoluble in ethanol
- 密度
- 0.807 at -319.9 °F (USCG, 1999) - Less dense than water, will float · 1.251 g/L at 0 °C and 1 atm, ... 0.804 (liquid), and 1.0265 (solid)
- 颜色
- 无色
- 熔点/凝固点
- -210 ℃
- 初沸点和沸程
- -196 ℃(-195.79 DEG C /LIQ/ (NLM, HSDB))
- 蒸气压
- 1 atm (77.347 deg K)
- 溶解度
- (1.18E+004mg/L(25℃))
- 蒸气密度
- 0.97 ((air = 1))
- 比重
- 0.808 (kg/l at the boiling point of liquid)
- 正辛醇/水分配系数（Kow）
- 0.67
- 分子量
- 28.0
这是对物质本身测得的数值。韩国安全保健公团（KOSHA）的资料仅供编写和审核安全数据表参考，并非原料商品的规格。
来源: PubChem · 韩国安全保健公团 安全数据表
产品实际使用的用途
这是向美国 EPA 申报含该成分的 89 款产品的用途。其中包括化妆品以外的产品，排在前几行的即为该成分的主要用途。
- Propellants, non-motive (blowing agents)80
- Soil amendments3
- Degradant/impurity (EPA)2
- No specific technical function1
- Intermediate1
- Antioxidant1
- Processing aids not otherwise specified1
来源: 美国EPA CompTox
相关文献
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- New trends in spectroscopy of solid nitrogen · 2019