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查了一下叫OptishieldⅡ corrosion inhibitor. 浓度是10%,就是一升这种溶液加10升蒸馏水。公司有一个国际联系电话:1-813-977-3668 去离子水的坏处(与蒸馏水不同,去离子水不是无菌水): 1。unsutable DI water: react with all metallic parts(原因我不清楚),inculding the gold plated reflective elliptical cavity which contains the arc lamp and laser rod. 2。 highly DI water( ultra pure water) : usually has 18 Megohm-cm resistivity, will attack metallic compontents. ideal water: 1Megohm-cm resistivity, so the electrolytic level is low enough to be a poor electrical conductor while high enough to prevent corrosive attack. DI filter changed at 3-month interval to maintain low oxygen concentration. 我查了实验室的几种laser(都是固体laser)都要求用steam distilled water,在diode pumped Nd:YLF laser才要求加optishield(原因可能是里面的金属元件比较多,此处不明)。一般laser里都自配有一个DI filter,理论上3个月换一次,不过我们没有做到。 顺便查了一下msds: http://www.optitemp.com/optishield.asp Name % In Product
Sodium Nitrate 1%
Sodium Molybdate 1-2%
Sodium Hydroxide 1-2%
Phosphoric Acid 1.5%
Triazole 2.5% 总结:蒸馏水的好处是无菌(防粘),低电导(防腐),无氧(防氧化)。 |