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亚氯酸钠是一种高效氧化剂漂白剂,主要用于纸浆漂白、水处理等;工业上生产NaClO2有多种方法,某工业生产的流程如图所示: 请回答下列问题: (1)合成塔中生成的物质是 (填化学式); (...
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高三下学期化学《》真题及答案
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有的漂白剂对锦纶有降解脆化发黄作用因此锦纶前处理漂白一般选用
过氧化氢
亚氯酸钠
次氯酸钠
亚氯酸钠漂白时常选择活化剂是
酸
碱
氯化钠
不是精炼常用的漂白剂的有
次氯酸钠
过氧化钠
亚氯酸钠
过氧化氢
亚氯酸钠NaClO2是一种高效漂白剂其中Cl元素的化合价是
﹣1
0
+3
+5
亚氯酸钠NaClO2是一种强氧化性漂白剂广泛用于纺织印染和食品工业它在碱性环境中稳定存在某同学查阅资
可用于净化空气漂白饮用水杀菌处理工业废物和作为漂白剂
臭氧
氯气
次氯酸钠
优氯净
亚氯酸钠NaClO2是一种高效的氧化剂漂白剂该物质中Cl的化合价为
﹣1
+1
+3
+5
亚氯酸钠NaClO2是一种强氧化性漂白剂广泛用于纺织印染和食品工业它在碱性环境中稳定存在某同学查阅资
亚氯酸钠NaClO2是一种高效漂白剂.其中氯元素Cl的化合价为
﹣3
+1
+3
+5
亚氯酸钠NaClO2是一种高效漂白剂其中氯元素Cl的化合价为
-3
+1
+3
+5
亚氯酸钠NaClO2主要用作棉纺造纸业的漂白剂也可用于食品消毒水处理等亚氯酸钠受热易分解以氯酸钠Na
亚氯酸钠是一种高效氧化剂漂白剂主要用于棉纺亚麻纸浆等漂白亚氯酸钠NaClO2在溶液中可生成ClO2H
pH=3比PH=4时更适宜做漂白剂
“有效氯含量”可用来衡量含氯消毒剂的消毒能力,指每克含氯消毒剂的氧化能力相当于多少克Cl
2
的氧化能力。则NaClO
2
的有效氯含量约为1.57
亚氯酸钠在酸性条件下较稳定
25℃,pH=3时,NaClO
2
溶液中:c(Na
+
)+(H
+
)=c(ClO
2
-
)+c(OH
-
)
下列选项中是在废水处理中常用的氧化剂
空气中的氧或纯氧
三氯化铁或铁屑
氯气
漂白粉、次氯酸钠
亚氯酸钠是一种高效氧化剂漂白剂主要用于棉纺亚麻纸浆等漂白亚氯酸钠NaClO2在溶液中可生成ClO2H
亚氯酸钠在碱性条件下较稳定
25℃时,HClO
2
的电离平衡常数的数值K.
a
=10
-
6
使用该漂白剂的最佳pH为3
25℃时,同浓度的HClO
2
溶液和NaClO
2
溶液等体积混合,混合溶液中有 c(HClO
2
)+2c(H
+
)=c(ClO
)+2c(OH
-
)
亚氯酸钠NaClO2是一种高效的氧化剂漂白剂该物质中Cl的化合价为
- 1
+1
+3
+5
汶川发生特大地震后为防止疫病流行全国各地向灾区运送了大量的消毒剂漂白剂等请回答下列相关问题⑴次氯酸盐
在棉针织产品中我们常用的漂白剂是
次氯酸钠
双氧水
冰醋酸
亚氯酸钠
亚氯酸钠化学式为NaClO2是一种高效的漂白剂该物质中氯元素的化合价为
+1
+2
+3
+4
氧漂的漂白剂是
次氯酸钠
双氧水
亚氯酸钠
亚氯酸钠NaClO2是一种高效氧化剂和漂白剂其中氯元素的化合价是
0
+1
+3
+5
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