1) no-pickling chrome agent
不浸酸铬鞣剂
1.
The α helix structure of collagen hydrolysate at different pH and the change of structure of no-pickling chrome agent reacting with collagen hydrolysate were investigated .
通过圆二色谱法对水解胶原在不同pH值条件下α-螺旋等构象的变化及不浸酸铬鞣剂与水解胶原作用后对胶原构象的影响,研究表明:Fasman概率统计预测出水解胶原的α-螺旋结构的存在,在高pH条件下,α螺旋结构有所降低,反平行β折叠片结构有增加趋势。
2) pickle-free chrome tanning
不浸酸铬鞣
3) no-pickling chrome tanning solution C-2000
不浸酸铬鞣液C-2000
4) pickling-tan-ning recycling
浸酸/铬鞣循环
5) no-pickling chrome tanning
不浸酸鞣制
1.
There is much Ca_2p in the middle layer of the leather, which shows that calcium is hard to remove in the no-pickling chrome tanning process.
结果显示,革样中主要的元素为C、N、O,这是构成胶原的主要成分;鞣制1h和4h后,铬和硫周围的化学环境及含量的变化不大,说明不浸酸鞣制时鞣剂的渗透与结合基本完成。
6) chrome tanning agent
铬鞣剂
1.
The Cr(Ⅵ) content in chrome tanning agents was determined by the method of alkaline digestion,which could effectively restrain the oxidation and reduction between Cr(Ⅲ)and Cr(Ⅵ).
采用碱式消解法测定铬鞣剂中的Cr(Ⅵ)含量。
2.
Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent.
将电镀废水中的六价铬还原成Cr(III),用化学沉淀法和絮凝法将其转化为Cr(OH)3沉淀,通过硫酸酸化,结晶为高纯硫酸铬,作为皮革工业的铬鞣剂。
3.
The chrome tanning agent was prepared with some wastewater produced from perfume factories contained high concentration organic acid as reducing agent and masking agent by which part of glucose was replaced.
利用香料厂排放的高浓度有机酸废水部分代替葡萄糖作还原剂和蒙囿剂,制备铬鞣剂,并对制备出的鞣剂的理化性能及鞣制性能,进行综合分析。
补充资料：铬酸锶
分子式：SrCrO4
CAS号：
性质：又称锶铬黄(strontium chrome yellow)。黄色单斜结晶或柠檬黄色粉末。密度3.895g/cm3。溶于盐酸、硝酸、醋酸、铵盐。微溶于水。耐光性良好。高温较稳定。但遮盖力和着色力不高。耐酸性和耐碱性较好。具有较好的防锈性能。有毒!由铬酸钠溶液。与氯化锶溶液进行复分解反应，经过滤、干燥、粉碎制得。用于轻金属防锈底漆，制造耐高温涂料，塑料和橡胶制品的着色和各种拼色。也用于油墨、玻璃、陶瓷工业。
CAS号：
性质：又称锶铬黄(strontium chrome yellow)。黄色单斜结晶或柠檬黄色粉末。密度3.895g/cm3。溶于盐酸、硝酸、醋酸、铵盐。微溶于水。耐光性良好。高温较稳定。但遮盖力和着色力不高。耐酸性和耐碱性较好。具有较好的防锈性能。有毒!由铬酸钠溶液。与氯化锶溶液进行复分解反应，经过滤、干燥、粉碎制得。用于轻金属防锈底漆，制造耐高温涂料，塑料和橡胶制品的着色和各种拼色。也用于油墨、玻璃、陶瓷工业。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条