常用名 英文名 Cu(II)
CAS号 7440-50-8 分子量 63.545
密度 8.92 沸点 2580 °C
分子式 Cu 熔点 1083.4 °C(lit.)
MSDS铜的MSDS|SDS|pdf下载 中文版 美版 闪点 -23 °C
符号 GHS02 GHS09
GHS02, GHS09
信号词 Danger

 铜用途


1.供制造化学用具、电力用具、建筑材料和其他工业装置及用具。为电子工业用材料,用作高纯分析试剂。用于粉末冶金零件、金刚石锯片、摩擦材料、电碳制品和化工触媒等。用作分析试剂、催化剂、还原剂。用作普通试剂、催化剂及还原剂。主要用于炼铜工业的原料,用作冶炼、电解铜的原料,主要用于制导电器材和合金(青铜、黄铜、白铜等)。 2.电子工业用材料,用作高纯分析试剂。

 铜物理化学性质

[ 密度 ]: 8.92
[ 沸点 ]: 2580 °C
[ 熔点 ]: 1083.4 °C(lit.)
[ 分子式 ]: Cu
[ 分子量 ]: 63.545
[ 闪点 ]: -23 °C
[ 精确质量 ]: 62.928505
[ 储存条件 ]:

储存于阴凉、通风的库房。远离火种、热源。应与氧化剂、酸类、卤素分开存放,切忌混储。配备相应品种和数量的消防器材。储区应备有合适的材料收容泄漏物。

[ 稳定性 ]: 1.外围电子排布3d 104s 1,位于第四周期IB族。原子半径127.8皮米,Cu2+半径72皮米,第一电离能为750kJ/mol,电负性1.9,常见氧化数+1、+2。有良好的延展性和传热、导电性。化学性质不很活泼,在干燥空气中稳定,在含有二氧化碳的潮湿空气中易生成碱式碳酸铜,俗称铜绿(Cu 2(OH) 2CO 3)。 2.应避免与强酸、强氧化剂、卤素接触。 3.溶于硝酸,热浓硫酸,极缓慢溶于盐酸、氨水、稀硫酸,亦溶于醋酸和其他有机酸,不溶于冷水和热水。露置空气中变暗,在潮湿空气中表面逐渐形成绿色碱式碳酸盐。 4.生产人员要穿防护工作服,戴口罩、防尘眼镜,生产设备要密闭,车间通风良好,工作下班后要洗淋浴。金属铜易溶于硝酸等氧化性酸,若无氧化剂或适宜配位试剂存在,则不溶于非氧化性酸。遇碱易被侵蚀。在干燥空气中稳定,但在潮湿空气中表面生成绿色的碱式碳酸铜。
[ 水溶解性 ]: insoluble
[ 计算化学 ]:

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:0

3.氢键受体数量:0

4.可旋转化学键数量:0

5.互变异构体数量:无

6.拓扑分子极性表面积0

7.重原子数量:1

8.表面电荷:0

9.复杂度:0

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

[ 更多 ]:

1. 性状:略带红色的金属(面心立方晶系),富延展性。是热、电的良导体(仅次于银)。

2. 密度(g/mL,20℃)8.94

3. 相对蒸汽密度(g/mL,空气=1):未确定

4. 熔点(ºC):1083.4

5. 沸点(ºC,常压):2595

6. 沸点(ºC,5.2kPa):未确定

7. 折射率:未确定

8. 闪点(ºC):未确定

9. 比旋光度(º):未确定

10. 自燃点或引燃温度(ºC):700(粉云)

11. 蒸气压(mmHg, ºC):未确定

12. 饱和蒸气压(kPa, ºC):未确定

13. 燃烧热(KJ/mol):未确定

14. 临界温度(ºC):未确定

15. 临界压力(KPa):未确定

16. 油水(辛醇/水)分配系数的对数值:未确定

17. 爆炸上限(%,V/V):未确定

18. 爆炸下限(%,V/V):未确定

19. 溶解性:不溶于稀盐酸和稀硫酸,溶于硝酸和热浓硫酸,能溶于氨水和氰化钾溶液并生成配合物。

 铜MSDS

国标编号:
CAS: 7440-50-8
中文名称:
英文名称: Copper
别 名:
分子式: Cu
分子量: 63.55
熔 点: 1083℃
密 度: 相对密度(水=1)8.92
蒸汽压:
溶解性: 不溶于水,溶于碱、盐酸、硫酸
稳定性: 稳定
外观与性状: 带有红色光泽的金属
危险标记:
用 途: 供制造化学用具、电力用具、建筑材料和其他工业装置及用具

0.005
I类
0.05
II类

2.对环境的影响:

一、健康危害

侵入途径:吸入、食入。健康危害:动物吸入铜的粉尘和烟雾,可引起呼吸道刺激症状,发生支气管炎或支气管肺炎,甚至肺水肿。长期接触铜尘的工人常发生接触性皮炎和鼻眼的刺激症状,引起烟痛、鼻塞、鼻炎、咳嗽等症状。铜熔炼工人可发生铜铸造热。长期吸入尚可引起肺部纤维组织增生。铜的毒性较小,但铜过剩出可引起中毒。铜盐的毒性以CuAc2和CuSO4较大,经口服即使微量也会引起急性中毒,发生流涎、恶心、呕吐、阵发性腹痛,严重者可有头痛、心跳迟缓、呼吸困难甚至虚脱,也可引起中枢神经系统的损害。

二、毒理学资料及环境行为

急性毒性:属微毒类。铜的污染来源为冶金、电镀、催化、仪表、合金和化工等的废水和废渣。自然界的铜化合物以一价或二价状态存在。一价铜多存在于矿物中,有氧化亚铜形式和硫化亚铜形式。环境中的铜主要以二价铜离子存在,二价铜可和无机配位体NH3、CO32-、HCO3-、SO42-形成络合物。

迁移转化:利用含铜废水灌溉农田或施用含铜污泥,铜可积蓄在土壤中。随水进入到土壤中的铜可被土壤吸持。土壤中的腐殖酸、富里酸含 有羧基、酚基、羰基等含氧基团,能与铜形成螯合物而固定铜。

危险特性:其粉体遇高温、明火能燃烧。 燃烧(分解)产物:氧化铜。


3.现场应急监测方法:

试纸法;速测管法;化学测试组法《突发性环境污染事故应急监测与处理处置技术》万本太主编便携式比色计(意大利哈纳公司产品)


4.实验室监测方法:

原子吸收法(GB7475-87,水质)原子吸收法(GB/T15555.2-95,固体废物浸出液)原子吸收法《空气和废气监测分析方法》国家环保局编


5.环境标准:
中国(GB5749-85) 生活饮用水水质标准 1.0mg/L
中国(GB5048-92) 农田灌溉水持标准 旱作 1.0mg/L(总铜)
中国(GB11607-89) 渔业水质标准 0.01mg/L
中国(GB15618-1995) 土壤环境质量标准(mg/kg) 一级35;二级50~100;三级400(农田等)
二级150~200;三级400(果园)
中国(4284-84) 农用污泥污染物控制标准 250mg/kg干污泥(酸性土壤)
500mg/kg干污泥(中、碱性土壤)
中国(GB5058.3-1996) 固体废弃物浸出毒性鉴别标准值 50mg/L

6.应急处理处置方法:

一、泄漏应急处理

隔离泄漏污染区,周围设警告标志,切断火源。应急处理人员戴好防毒面具,穿一般消防防护服。避免扬尘,使用无火花工具收集于干燥净洁有盖的容器中,转移回收。当水体受到污染时,可采用加入纯碱中和,使铜以碱式碳酸铜形式沉淀而从水中转入污泥中,而污泥再做进一步的无害化处理。对于受铜污染的土壤,可采取排土、土层改良、深耕、施加石灰质矿物及磷酸钙等措施治理。

二、防护措施

一般不需特殊防护,但需防止烟尘危害。

三、急救措施

皮肤接触:脱去污染的衣着,用肥皂水及清水彻底冲洗。就医。眼睛接触:立即翻开上下眼睑,用流动清水或生理盐水冲洗至少15分钟。就医。吸入:迅速脱离现场至空气新鲜处。就医。食入:误服者立即漱口,饮牛奶或蛋清。就医。

灭火方法:干粉、砂土。禁止用水。

 铜毒性和生态

铜毒理学数据:

对皮肤有刺激作用。粉尘刺激眼睛,并引起角膜溃疡。

铜生态学数据:

水中嗅觉阈浓度: 水中浓度为 3-5mg/L,使水变味。

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GL5325000
CHEMICAL NAME :
Copper
CAS REGISTRY NUMBER :
7440-50-8
LAST UPDATED :
199712
DATA ITEMS CITED :
78
MOLECULAR FORMULA :
Cu
MOLECULAR WEIGHT :
63.54

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human
DOSE/DURATION :
120 ug/kg
TOXIC EFFECTS :
Gastrointestinal - nausea or vomiting
REFERENCE :
PHRPA6 Public Health Reports. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1878- Volume(issue)/page/year: 73,910,1958
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
3500 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
38MKAJ "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2nd rev. ed. in 1985. Volume(issue)/page/year: 2A,1623,1981 ** TUMORIGENIC DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intrapleural
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Lungs, Thorax, or Respiration - tumors
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 41,836,1980 ** REPRODUCTIVE DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
152 mg/kg
SEX/DURATION :
female 22 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - Central Nervous System
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 45(3),8,1980
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1520 ug/kg
SEX/DURATION :
female 22 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 45(3),8,1980
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1210 ug/kg
SEX/DURATION :
female 35 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 42(8),30,1977
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intrauterine
DOSE :
250 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
REFERENCE :
IJEBA6 Indian Journal of Experimental Biology. (Publications & Information Directorate, CSIR, Hillside Rd., New Delhi 110 012, India) V.1- 1963- Volume(issue)/page/year: 19,1124,1981 *** REVIEWS *** ACGIH TLV-TWA 1 mg(Cu)/m3, dust, mist DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 0.2 mg(Cu)/m3, fume DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW TRBMAV Texas Reports on Biology and Medicine. (Galveston, TX) V.1-41(2), 1943-81/82. Discontinued. Volume(issue)/page/year: 33,85,1975 TOXICOLOGY REVIEW QURBAW Quarterly Reviews of Biophysics. (Cambridge Univ. Press, The Edinburgh Bldg., Shaftesbury Rd., Cambridge CB2 2RU, UK) V.1- 1968- Volume(issue)/page/year: 7,75,1974 TOXICOLOGY REVIEW JAVMA4 Journal of the American Veterinary Medical Association. (American Veterinary Medical Assoc., 930 N. Meacham Rd., Schaumburg, IL 60196) V.48- 1915- Volume(issue)/page/year: 164,277,1974 TOXICOLOGY REVIEW IJMDAI Israel Journal of Medical Sciences. (POB 1435, Jerusalem 91013, Israel) V.1- 1965- Volume(issue)/page/year: 10,416,1974 TOXICOLOGY REVIEW KOTTAM Kogai to Taisaku. Journal of Environmental Pollution Control. (Kogai Taisaku Gijutsu Dokokai, Shuwa-Akasaka Bldg., 9-1-244, Akasaka, Minato-ku, Tokyo 107, Japan) V.1- 1965- Volume(issue)/page/year: 11,1300,1975 TOXICOLOGY REVIEW FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 7,313,1942 TOXICOLOGY REVIEW MIBUBI Mikrobiyoloji Bulteni. Bulletin of Microbiology. (c/o Dr. A. Tevfik Cenqiz, Ankara Universitesi Tip Fakultesi Mikrobiyoloji Ana Bilim Dah, Ankara, Turkey) V.1- 1967- Volume(issue)/page/year: 9,321,1975 TOXICOLOGY REVIEW PEXTAR Progress in Experimental Tumor Research. (S. Karger AG, Postfach CH-4009 Basel, Switzerland) V.1- 1960- Volume(issue)/page/year: 12,102,1969 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: Cu,41,1977 TOXICOLOGY REVIEW AMTODM Advances in Modern Toxicology. (John Wiley & Sons, Inc., 605 Third Ave., New York, NY 10016) V.1, 1976-79. Discontinued. Volume(issue)/page/year: 3,209,1977 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 0.1 mg/m3 (fume,dusts & mists) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,59,1971 OSHA PEL (Gen Indu):8H TWA 0.1 mg(Cu)/m3, fume CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Gen Indu):8H TWA 1 mg(Cu)/m3, dusts and mists CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.1 mg(Cu)/m3, fume CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Construc):8H TWA 1 mg(Cu)/m3, dusts and mists CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.1 mg(Cu)/m3, fume CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Shipyard):8H TWA 1 mg(Cu)/m3, dusts and mists CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.1 mg/m3, fume CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 OSHA PEL (Fed Cont):8H TWA 1 mg/m3, dusts and mists CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.1 mg/m3 (fume) JAN 1993 OEL-AUSTRALIA:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-AUSTRALIA:TWA 1 mg/m3 (dust) JAN 1993 OEL-BELGIUM:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-BELGIUM:TWA 1 mg/m3 (dust) JAN 1993 OEL-DENMARK:TWA 0.1 mg/m3 (fume) JAN 1993 OEL-DENMARK:TWA 1 mg/m3 (dust) JAN 1993 OEL-FINLAND:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-FINLAND:TWA 1 mg/m3 (dust) JAN 1993 OEL-FRANCE:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-FRANCE:TWA 1 mg/m3;STEL 2 mg/m3 (dust) JAN 1993 OEL-GERMANY:TWA 0.1 mg/m3 (fume) JAN 1993 OEL-GERMANY:TWA 1 mg/m3 (dust) JAN 1993 OEL-HUNGARY:TWA 0.2 mg/m3;STEL 0.4 mg/m3 (dust) JAN 1993 OEL-INDIA:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-THE NETHERLANDS:TWA 02 mg/m3 (fume) JAN 1993 OEL-THE NETHERLANDS:TWA 1 mg/m3 (dust) JAN 1993 OEL-THE PHILIPPINES:TWA 1.0 mg/m3 (fume) JAN 1993 OEL-POLAND:TWA 0.1 mg/m3 (fume) JAN 1993 OEL-RUSSIA:STEL 0.5 ppm (1 mg/m3) (dust) JAN 1993 OEL-SWEDEN:TWA 0.2 mg/m3 (resp. dust) JAN 1993 OEL-SWEDEN:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-SWEDEN:TWA 1 mg/m3 (total dust) JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg/m3;STEL 0.2 mg/m3 (fume) JAN 1993 OEL-SWITZERLAND:TWA 1 mg/m3;STEL 1 mg/m3 JAN 1993 OEL-THAILAND:TWA 0.1 mg/m3 (fume) JAN 1993 OEL-THAILAND:TWA 1 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.2 mg/m3 (fume) JAN 1993 OEL-UNITED KINGDOM:TWA 1 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO COPPER, dusts and mists-air:10H TWA 1 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO COPPER, fume-air:10H TWA 0.1 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M2276 No. of Facilities: 1213 (estimated) No. of Industries: 27 No. of Occupations: 35 No. of Employees: 24737 (estimated) NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 20115 No. of Facilities: 12177 (estimated) No. of Industries: 176 No. of Occupations: 105 No. of Employees: 224406 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5915 No. of Facilities: 162 (estimated) No. of Industries: 5 No. of Occupations: 5 No. of Employees: 11889 (estimated) No. of Female Employees: 421 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5983 No. of Facilities: 4558 (estimated) No. of Industries: 51 No. of Occupations: 45 No. of Employees: 53282 (estimated) No. of Female Employees: 8758 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X6807 No. of Facilities: 16 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 625 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X8588 No. of Facilities: 204 (estimated) No. of Industries: 3 No. of Occupations: 7 No. of Employees: 9443 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 20115 No. of Facilities: 59839 (estimated) No. of Industries: 296 No. of Occupations: 158 No. of Employees: 920449 (estimated) No. of Female Employees: 72821 (estimated)

 铜安全信息

[ 符号 ]: GHS02 GHS09
GHS02, GHS09
[ 信号词 ]: Danger
[ 危害声明 ]: H228-H410
[ 警示性声明 ]: P210-P273
[ 个人防护装备 ]: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
[ 危害码 (欧洲) ]: F:Flammable
[ 风险声明 (欧洲) ]: R11
[ 安全声明 (欧洲) ]: S5-S26-S16-S61-S62-S36/37
[ 危险品运输编码 ]: UN 3089 4.1/PG 2
[ WGK德国 ]: 3
[ RTECS号 ]: GL5325000
[ 包装等级 ]: III
[ 危险类别 ]: 4.1
[ 海关编码 ]: 7402000090

 铜制备

1.电解法以金属铜为原料,溶解于浓硫酸。配成电解液组成为:含Cu52.3 g/L、H2SO4约200 g/L,电解液温度58.5℃,槽电压0.33 V,阴极电流密度1.82 A/cm2。经电解精炼,制得高纯铜粉成品。

2.将硝酸铜进行重结晶、干燥,并在800~850℃下灼烧以除去氮的氧化物。然后,把制得的氧化铜放入管式炉内的瓷皿中,并在250~300℃的条件下用氢气进行还原。用此法制得的铜呈粉红色粉末状,在较高温度(800~900℃)时,铜可黏结起来,而得到海绵状物质。

3.向硫酸铜的浓溶液中放入过量的锌棒、锌块或锌粉,通过置换反应使铜析出。当溶液褪色后,回收未起反应的锌,同时用加热到60~70℃的稀硫酸或稀盐酸浸泡含锌残渣的沉淀铜。在锌被完全溶解后,将沉淀铜转移至过滤器上,然后用稀盐酸、水洗涤,最后用乙醇洗涤,并在40~50℃的条件下将铜烘干。这一制法中也可用铁或铝来替代锌。

4.粉末状氧化铜,在管式炉中于135~150℃下通氢气还原,直至黑色氧化铜转变为玫瑰色铜粉为止。
停止加热,继续通氢气冷却,即可制得成品。若要制取在空气中相当稳定的粘结体,还原温度要控制在500~520℃

7440-50-8 preparation

5.先将工业铜用稀硝酸 ( 或稀硫酸)和蒸馏水洗去表面污物,然后用硝酸 ( 或硫酸)溶解,作为电解液,采用较纯铜片作为阴极,电流密度控制在120A/m2,电解产物根据产品要求,可以经水洗、酸洗、脱水、干燥。

 铜海关

[ 海关编码 ]: 7402000090

 铜文献236

更多文献
Non-stabilized nucleophiles in Cu-catalysed dynamic kinetic asymmetric allylic alkylation.

Nature 517(7534) , 351-5, (2015)

The development of new reactions forming asymmetric carbon-carbon bonds has enabled chemists to synthesize a broad range of important carbon-containing molecules, including pharmaceutical agents, frag...

ROI-SCAVENGING ENZYME ACTIVITIES AS TOXICITY BIOMARKERS IN THREE SPECIES OF MARINE MICROALGAE EXPOSED TO MODEL CONTAMINANTS (COPPER, IRGAROL AND ATRAZINE)

Ecotoxicol. Environ. Saf. 104 , 294-301, (2014)

There is a need to develop efficient tools to prevent damage to marine ecosystems due to pollution. Since microalgae play a key role in marine ecosystems, they are considered potentially useful for qu...

Influence of the selective EDTA derivative phenyldiaminetetraacetic acid on the speciation and extraction of heavy metals from a contaminated soil.

Chemosphere 109 , 1-6, (2014)

The development of more selective chelators for the washing of heavy metal contaminated soil is desirable in order to avoid excessive dissolution of soil minerals. Speciation and mobility of Cu, Zn, P...