简介 产品特点 用途 镍丝 试剂级价格
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镍丝

镍丝,7440-02-0,结构式
镍丝
  • CAS号:7440-02-0
  • 英文名:Nickel
  • 中文名:镍丝
  • CBNumber:CB00130658
  • 分子式:Ni
  • 分子量:58.69
  • MOL File:7440-02-0.mol
镍 价格行情
镍丝化学性质
  • 熔点 :1453 °C (lit.)
  • 沸点 :2732 °C (lit.)
  • 密度 :8.9 g/mL at 25 °C (lit.)
  • 蒸气密度 :5.8 (vs air)
  • 储存条件 :no restrictions.
  • 溶解度 :insoluble in H2O; slightly soluble in dilute acid solutions
  • 形态 :wire
  • 比重 :8.9
  • 颜色 :White to gray-white
  • PH值 :8.5-12.0
  • 气味 (Odor) :Odorless
  • 酸碱指示剂变色ph值范围 :9 - 11 at 20 °C
  • 电阻率 (resistivity) :6.97 μΩ-cm, 20°C
  • 水溶解性 :It is insoluble in water.
  • 敏感性 :air sensitive
  • Merck :14,8107
  • 暴露限值 :TLA-TWA (metal) 1 mg/m3 (ACGIH, MSHA, and OSHA); (soluble inorganic compounds) 0.1 mg(Ni)/m3 (ACGIH) 0.015 mg (Ni)/m3 (NIOSH); (insoluble inorganic compounds) 1 mg/m3 (ACGIH).
  • 稳定性 :Stable in massive form. Powder is pyrophoric - can ignite spontaneously. May react violently with titanium, ammonium nitrate, potassium perchlorate, hydrazoic acid. Incompatible with acids, oxidizing agents, sulfur.
  • InChIKey :PXHVJJICTQNCMI-UHFFFAOYSA-N
  • CAS 数据库 :7440-02-0(CAS DataBase Reference)
  • (IARC)致癌物分类 :2B (Vol. Sup 7, 49) 1990
  • NIST化学物质信息 :Nickel(7440-02-0)
  • EPA化学物质信息 :Nickel (7440-02-0)
安全信息
  • 危险品标志 :C,Xi,Xn,F,T
  • 危险类别码 :34-50/53-43-40-10-17-52/53-48/23
  • 安全说明 :26-45-60-61-36-22-36/37-16-15-5-36/37/39-43-28
  • 危险品运输编号 :UN 1493 5.1/PG 2
  • 职业暴露等级 :D
  • 职业暴露限值 :TWA: 0.015 mg/m3 [*Note: The REL does not apply to Nickel carbonyl.]
  • WGK Germany :3
  • RTECS号 :VW4725000
  • F :8
  • 自燃温度 :87 °C
  • TSCA :Yes
  • 危险等级 :4.1
  • 包装类别 :II
  • 海关编码 :38151100
  • 毒害物质数据 :7440-02-0(Hazardous Substances Data)
  • 毒性 :Occupational exposures may occur in its mining, smelting, and refining. The general population ingests nickel in food. Skin sensitization and dermatitis leading to chronic eczema, called “nickel itch,” frequently occurs, especially in wearers of pierced earrings. Nickel can also irritate the conjunctiva and respiratory tract mucous membranes. Absorption from the digestive tract is poor, so systemic poisoning is rare, but since it is an irritant it acts as an emetic. Systemic effects include hyperglycemia, capillary damage, CNS depression, myocardial weakness, and kidney damage. Nickel and its compounds are carcinogenic following inhalation, but not following ingestion or skin contact. Cancer of the lung and nasal passages results, with a latent period of about 25 years; smokers are at greater risk. In addition to irritation and carcinogenesis, nickel carbonyl (nickel tetracarbonyl, Ni(CO)4) exerts relatively mild, tran_x0002_sientinitial symptoms including headache, giddiness, nausea, and shortness of breath. These symptoms are followed by very serious symptoms hours to days later, consisting of tightness in the chest, shortness of breath, rapid respiration, pulmonary edema, cyanosis, and extreme weakness; this can be fatal. Heat decomposition of nickel carbonyl yields carbon monoxide. Chelating agents can be used to remove nickel from the body.
  • 立即威胁生命和健康浓度 :10 mg Ni/m3

镍丝 MSDS


镍丝

镍丝性质、用途与生产工艺

  • 简介 镍是一种坚硬的,银白色,可延展的金属块或灰色粉末。镍的化学和物理性质,特别是其磁性,与铁和钴相似。有些酸会侵蚀镍,但它也能提供很好的保护作用,防止空气和海水腐蚀。这使其非常适合电镀其他金属以形成保护涂层。纯镍丝具有高温下强度较好,塑性好,导热性差,电阻率高的特点。

    镍丝.jpg

  • 产品特点

    1、具有可焊性,较高的导电性,适宜的线膨胀系数

    2、高温下强度较好,电阻率较低

    3、熔点高、耐蚀、机械性能好,在冷热状态下都有较好的压力加工性,易除气,适用于无线电、电光源、机械制造、化学工业,是真空电子器件中重要的结构材料。

    纯镍丝根据材质可分为N4和N6。

  • 用途

    纯镍丝适用于无线电、电光源、机械制造、化学工业,是真空电子器件中重要的结构材料,也可在灯泡中作导丝引线。镍丝在浓碱中表面会生成一层黑色的保护膜,使它十分耐蚀。多用于电光源材料,镀膜,具有表面质量高,加工性能好,用于制作工作如阳极、隔片、电极支架等,也可在灯泡中作导丝引线,另外在氯碱工业中起到了非常重要的作用。电极材料因使用条件不同,而有多种成分的合金。而且电极材料均要求有低的电阻率以免造成电极过热,高的高温强度以减少材料磨损,在电弧作用下较粘的熔化挥发以提高使用寿命等性能。

镍丝上下游产品信息
上游原料
下游产品
镍丝 试剂级价格
  • 更新日期:2024/11/08
  • 产品编号:045655
  • 产品名称:镍钛诺弹簧, 线直径 0.75mm (0.030in),平均线盘直径 5.55mm (0.22in), 合金 M Nitinol tension coil spring, wire diameter 0.75mm (0.030in), mean coil diameter 5.55mm (0.22in), Alloy M, Thermo Scientific Chemicals
  • CAS编号:7440-02-0
  • 包装:5pc
  • 价格:1389元
  • 更新日期:2024/11/08
  • 产品编号:045655
  • 产品名称:镍钛诺弹簧, 线直径 0.75mm (0.030in),平均线盘直径 5.55mm (0.22in), 合金 M Nitinol tension coil spring, wire diameter 0.75mm (0.030in), mean coil diameter 5.55mm (0.22in), Alloy M, Thermo Scientific Chemicals
  • CAS编号:7440-02-0
  • 包装:25pc
  • 价格:6945元
镍丝生产厂家
  • 公司名称:Vale Canada Limited
  • 联系电话:--
  • 电子邮件:reception@vale.com
  • 国家:加拿大
  • 产品数:3
  • 优势度:58
  • 公司名称:Hummel Croton Inc.
  • 联系电话:--
  • 电子邮件:zschoen@hummelcroton.com
  • 国家:加拿大
  • 产品数:115
  • 优势度:64
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