1) silica gel-self indicator
变色硅胶
2) turn colors silica gel
变色硅胶
1.
This text introduced the property and use of silica gel,and discussed detailedly productive method and technics as well as flow for preparation of various silica gel and turn colors silica gel from raw water glass using sulfuric acid method.
本文介绍了硅胶的性质、用途,并对水玻璃为原料硫酸法制备形状各异的硅胶和变色硅胶的生产方法、生产工艺和生产流程进行了详细论述。
3) self-indicating silica gel
蓝胶指示剂变色硅胶
4) tarnishing
变色
1.
Causes for tarnishing of tin electrodeposits and solutions thereof;
锡镀层变色的原因分析及解决
2.
Tarnishing causes and tarnishing resistant measures of gold and silver-plated connectors;
接插件镀金、镀银层变色原因及防变色措施
3.
The anti-tarnishing experiments can be taken to confirm a certain alloy's anti-tarnishing capability.
银合金的特点是容易发生硫化变色,通过抗变色试验可以确定合金的抗变色性能。
5) tarnish
变色
1.
Tarnishing Mechanism and Anti-tarnishing Techniques of Gold and Silver Coins;
金银币变色机理和抗变色工艺研究
2.
The effects of various corrosive gases on silver tarnishing and the corrosion products in the tarnish layer were dis- cussed,especially hydrogen sulfide and silver sulfide.
讨论了大气中各种腐蚀性气体对银变色的影响,以及变色膜中各种腐蚀产物的成分及状态,以硫化氢气体和硫化银为主要对象进行阐述,侧重介绍了最近30年的研究结果。
3.
In natural environment, tarnish was observed on the surface of a commemoration silver coin of China.
银纪念币在大气环境中表面发生变色,失去原有的金属光泽。
6) discoloration
变色
1.
Research in PVC-U profile discoloration by sulfurous pollutants;
关于硫化污染引起PVC-U型材变色的研究
2.
Effects of Acid and Alkali on Discoloration Prevention of Paulownia Wood;
酸碱对防止泡桐木材变色的影响
3.
Controlling Measures for Yunnan Hemlock Discoloration during Drying;
云南铁杉干燥过程中变色的控制
参考词条
补充资料：变色硅胶
分子式：
CAS号：
性质：蓝色或浅蓝色颗粒或小球状，不溶于水。易吸收水分而渐渐变为粉红色。可利用吸湿后的颜色变化指示湿度。为工业和家用吸湿干燥剂。
CAS号：
性质：蓝色或浅蓝色颗粒或小球状，不溶于水。易吸收水分而渐渐变为粉红色。可利用吸湿后的颜色变化指示湿度。为工业和家用吸湿干燥剂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。