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已读[304] 发布: 2013/07/13 16:35:21
SBWire (press release) As recently as June 7, the Michigan Department of Environmental Quality was reviewing an $18 million proposal to cleanup water and soil contaminants – including chromium and lead, volatile organic compounds and other solvents -- at three former Lansing ...
已读[325] 发布: 2013/07/11 18:23:55
SBWire (press release) As recently as June 7, the Michigan Department of Environmental Quality was reviewing an $18 million proposal to cleanup water and soil contaminants – including chromium and lead, volatile organic compounds and other solvents -- at three former Lansing ...
已读[336] 发布: 2013/07/11 18:23:28
Engineering Capacity Hard chrome plating, which is widely used in the aerospace and defence industries, is soon to be restricted under EU REACH and US OSHA legislation due to the use of highly toxic hexavalent chromium salts . In order to meet these environmental ...
已读[442] 发布: 2013/07/09 22:47:08
图为段志强在黄河铬盐公司了解情况。 6月19日,市长段志强深入磴口部分企业、污水处理工程、旅游景区现场办公,了解环境保护、安全生产、旅游生态建设等工作,协调解决有...
已读[403] 发布: 2013/07/09 22:47:04
C货玉色较差,加温至110摄氏度时放在铬盐溶液中浸泡一二天,使铬盐渗透进玉料裂缝中达到染色效果,初看时晶莹剔透,一二年后就会褪色,此玉价廉物美,但没有收藏价值。...
已读[386] 发布: 2013/07/09 22:47:00
随后,刘尧臣一行驱车来到原长沙铬盐厂铬污染物治理项目现场,察看铬渣处置情况,了解工程进度,听取下阶段工作打算。在捞刀河、浏阳河入湘江口,刘尧臣仔细询问污染治理...
已读[486] 发布: 2013/07/09 22:46:56
早期用铬盐加色的翡翠,在查尔斯滤镜观察成红色,(天然的绿色钙铝榴石玉也成红色),成批的铬盐染色硬玉戒面,早在1956年美国宝石研究所发现.现今许多染色翡翠已不用...
已读[444] 发布: 2013/07/09 22:46:30
据了解,受国家发改委委托,石化行业已组织编制了氯碱、纯碱、氮肥、硫酸、磷肥、电石、黄磷、农药、轮胎、铬盐、涂料等10余个行业的清洁生产评价指标体系,同时编制了...
已读[403] 发布: 2013/07/09 22:46:26
8. 染色及炝色:通过加温把有机染料加进翡翠内部称染色,炝色是将水好的翡翠加热到212摄氏度,随即放入铬盐液中浸泡两个小时,铬盐会渗透在翡翠晶格内,使其显美丽...
已读[414] 发布: 2013/07/09 22:46:22
热门新闻上周 上月 巴斯夫植物保护制剂工厂在江苏奠基 海南力智生物添加违禁农药被罚20万并被追刑责 药检所:2012年中国生物农药出口排名 2012年公开的农药专利-...
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