CN115363025A - 一种高效稳定次氯酸钠消毒液及其配制方法 - Google Patents
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Abstract
本发明公开了一种高效稳定次氯酸钠消毒液,由以下质量百分比的原料组成:次氯酸钠95~100%,稳定剂0.1~5%,表面活性剂0.01~2%,助稳定剂0.01~0.5%,光热稳定剂0.05~0.2%,pH调节剂0.1~5%,香精0.01~0.2%。本发明使用高性能表面活性剂十二烷基二苯醚二磺酸钠和十二烷基二甲基两性甜菜碱,在强碱性和强氧化性的次氯酸钠溶液中有很好的配伍性,既保证了次氯酸钠的稳定性,同时提高杀菌性能,并且提供一定的清洁能力;光热稳定剂能够抑制光和热对过氧化氢的分解作用,降低次氯酸钠的分解速率,使得次氯酸钠消毒液在常温和光照条件下显现出更好的稳定性。
Description
技术领域
本发明涉及消毒剂制备领域,尤其涉及一种次氯酸钠消毒液及其制备方法。
背景技术
次氯酸钠消毒液是一种以次氯酸钠为主要成分的含氯消毒剂,主要用作漂白剂、氧化剂及水净化剂,用于造纸、纺织、轻工业、医疗卫生等领域,具有漂白、杀菌、消毒的作用。次氯酸钠是一种强电解质,在水中首先电离生成次氯酸根离子(ClO-),次氯酸根离子水解生成次氯酸,进一步分解生成新生态氧[O](氧原子直接构成的物质),其化学性质非常活泼,具有极强氧化力,在消毒过程中起了极大的作用。其消毒原理归纳为:①次氯酸根通过与细菌细胞壁和病毒外壳发生氧化还原作用,使病菌裂解。次氯酸根还能渗入到细胞内部,氧化作用于细菌体内的酶,使细菌死亡;②次氯酸同样具有氧化性,消杀原理同次氯酸根;③次氯酸不稳定分解生成新生态氧,新生态氧的极强氧化性使菌体和病毒的蛋白质变性,从而使病原微生物致死;④氯离子能显著改变细菌和病毒体的渗透压,导致其丧失活性而死亡。
但次氯酸钠稳定性较差和刺激性味道较大,影响使用效果。公开号为CN105961382A的发明专利申请《一种次氯酸钠用稳定剂及其使用方法》公开了一种含有氨基磺酸钠的次氯酸钠复配型稳定剂,其可使次氯酸钠在较热环境下难以分解,延长使用时间,但氨基磺酸钠中氨基具有还原性,可能在保存和使用过程中与次氯酸钠反应,降低其有效氯含量。公开号为CN201811564711的发明专利《一种含氯消毒液及其制备方法》公开了一种以硅酸钠和瓜尔胶为稳定剂的次氯酸钠消毒剂,该消毒剂具有较好的稳定性,但其产品中有效氯含量仅约为1.2%,有效含量太低,影响杀菌效果。因此在次氯酸钠消毒液生产中,需要解决的问题是同时提高消毒剂的稳定性和杀菌效果。
发明内容
本发明所要解决的技术问题是提供一种高效稳定次氯酸钠消毒液及其配制方法。
本发明解决其技术问题所采用的技术方案是:一种高效稳定次氯酸钠消毒液,由以下质量百分比的原料组成:次氯酸钠95~100%,稳定剂0.1~5%,表面活性剂0.01~2%,助稳定剂0.01~0.5%,光热稳定剂0.05~0.2%,pH调节剂0.1~5%,香精0.01~0.2%。
进一步的,一种高效稳定次氯酸钠消毒液,由以下质量百分比的原料组成:次氯酸钠98~100%,稳定剂0.3~1%,表面活性剂0.3~1%,助稳定剂0.1~0.3%,光热稳定剂0.1~0.2%,pH调节剂0.1~2%,香精0.01~0.1%。
进一步的,所述的一种高效稳定次氯酸钠消毒液,由以下质量百分比的原料组成:次氯酸钠98.25%,稳定剂0.5%,助稳定剂0.2%,光热稳定剂0.2%,表面活性剂0.5%,pH调节剂0.3%,香精0.05%。
进一步的,所述的一种高效稳定次氯酸钠消毒液,所述稳定剂为溴化钾、氯化钠、钼酸钠、硅酸钠、硼酸钠中的至少一种。
进一步的,所述的一种高效稳定次氯酸钠消毒液,所述稳定剂为溴化钾和氯化钠,所述溴化钾和氯化钠的质量比为(0.9~1.2):1。
6进一步的,所述的一种高效稳定次氯酸钠消毒液,所述溴化钾和氯化钠的质量比为1:1。
进一步的,所述的一种高效稳定次氯酸钠消毒液,所述表面活性剂为十二烷基二苯醚二磺酸钠、十二烷基二甲基两性甜菜碱、脂肪醇聚氧乙烯醚硫酸钠和脂肪醇聚氧乙烯醚硫酸钠中的至少一种。
进一步的,所述的一种高效稳定次氯酸钠消毒液,所述助稳定剂为亚氨基二琥珀酸四钠。
进一步的,所述的一种高效稳定次氯酸钠消毒液,所述光热稳定剂为葡萄糖和麦芽糖醇,所述溴葡萄糖和麦芽糖醇质量比为1:1;所述pH调节剂为氢氧化钠、氢氧化钾中的至少一种。
一种高效稳定次氯酸钠消毒液的配制方法,包括以下步骤:
(1)将5%次氯酸钠置入反应器中,加入稳定剂、表面活性剂、助稳定剂、光热稳定剂,搅拌10~20分钟使固体物完全溶解,得到混合溶液A备用;
(2)将pH调节剂、香精一次加到步骤路(1)中得到的混合溶液A中混合,搅拌15~30分钟后,放置2~4小时,得到次氯酸钠消毒液。
由于次氯酸钠自身稳定性较差,容易受外界光、热等因素影响,通过加入高效稳定剂提高次氯酸钠的稳定性;其次,加入表面活性剂能使消毒液更好的渗透和扩散到菌团内部,充分发挥消毒液的作用,缩短消毒时间,提高消毒效率。十二烷基二苯醚二磺酸钠是一种阴离子表面活性剂,不仅在强酸、强碱及盐溶液中,而且在较高的剪切等条件下都能表现出极佳的稳定性,能在强碱、强氧化性的次氯酸钠溶液中表现出良好的配伍性。亚氨基二琥珀酸四钠是一种高效的重金属离子螯合剂,本身为碱性,能增强次氯酸钠稳定性;其耐酸碱,抗强氧化性;和表面活性剂一起使用能能增强消毒剂的清洁能力;其本身还具有阻垢作用。葡萄糖和麦芽糖醇作为光热稳定剂能够抑制光和热对过氧化氢的分解作用,降低次氯酸钠的分解速率,使得次氯酸钠消毒液在常温和光照条件下显现出更好的稳定性。
本发明的有益效果是:(1)本发明使用复配稳定剂,能很好地保证次氯酸钠的稳定性,加入的溴化钾使得部分ClO-与Br-反应成为BrO-,BrO-本身比ClO-稳定,且同样具有杀菌功能,当ClO-与BrO-存在达到一种平衡时,NaClO的分解速率迅速降低,且生成的单质溴进一步抑制ClO-的分解;加入的氯化钠中的氯离子,同样可抑制次氯酸钠分解;
(2)本发明使用高性能表面活性剂十二烷基二苯醚二磺酸钠和十二烷基二甲基两性甜菜碱,在强碱性和强氧化性的次氯酸钠溶液中有很好的配伍性,既保证了次氯酸钠的稳定性,同时提高杀菌性能,并且提供一定的清洁能力;
(3)本发明使用的助稳定剂亚氨基二琥珀酸四钠在强碱性和强氧化性的次氯酸钠溶液中有很好的配伍性,可提高次氯酸钠稳定性,增强消毒剂的清洁能力,并且起到阻垢作用,对消毒对象具有一定保护作用;
(4)本发明使用的光热稳定剂能够抑制光和热对过氧化氢的分解作用,降低次氯酸钠的分解速率,使得次氯酸钠消毒液在常温和光照条件下显现出更好的稳定性。
具体实施方式
下面结合实施例对本发明进一步说明。
实施例1:
本发明实施例1的次氯酸钠消毒液,由以下质量的制备原料组成:5%次氯酸钠98.25%,稳定剂0.5%,表面活性剂0.5%,助稳定剂0.2%,光热稳定剂0.2%,pH调节剂0.3%,香精0.05%。
所述稳定剂为溴化钾和氯化钠,所述溴化钾和氯化钠的质量比为1:1。
所述表面活性剂为十二烷基二甲基两性甜菜碱和十二烷基二苯醚二磺酸钠,所述十二烷基二甲基两性甜菜碱和十二烷基二苯醚二磺酸钠的质量比为0.5:1。
所述助稳定剂为亚氨基二琥珀酸四钠。
所述光热稳定剂为葡萄糖和麦芽糖醇,其质量比为1:1。
所述pH调节剂为氢氧化钠。
上述次氯酸钠消毒液的制备方法,包括以下步骤:
①将5%次氯酸钠置入反应器中,加入稳定剂、表面活性剂、助稳定剂和光热稳定剂,搅拌10-20分钟使固体物完全溶解,得到混合溶液A备用;
②将pH调节剂、香精一次加到①中得到的混合溶液A中混合,搅拌15-30分钟后,放置2-4小时,得到次氯酸钠消毒液。
实施例2:
本发明实施例2的次氯酸钠消毒液,由以下质量的制备原料组成:5%次氯酸钠98.5%,稳定剂0.25%,表面活性剂0.5%,助稳定剂0.2%,光热稳定剂0.2%,pH调节剂0.3%,香精0.05%。
所述稳定剂为溴化钾和氯化钠,所述溴化钾和氯化钠的质量比为1:1。
所述表面活性剂为十二烷基二甲基两性甜菜碱和十二烷基二苯醚二磺酸钠,所述十二烷基二甲基两性甜菜碱和十二烷基二苯醚二磺酸钠的质量比为0.5:1。
所述助稳定剂为亚氨基二琥珀酸四钠。
所述光热稳定剂为葡萄糖和麦芽糖醇,其质量比为1:1。
所述pH调节剂为氢氧化钠。
上述次氯酸钠消毒液的制备方法,包括以下步骤:
①将5%次氯酸钠置入反应器中,加入稳定剂、表面活性剂、助稳定剂和光热稳定剂,搅拌10-20分钟使固体物完全溶解,得到混合溶液A备用;
②将pH调节剂、香精一次加到①中得到的混合溶液A中混合,搅拌15-30分钟后,放置2-4小时,得到次氯酸钠消毒液。
对比例1:
与实施例1相比,本对比例的区别仅在于:完全不添加稳定剂。
对比例2:
与实施例1相比,本对比例的区别仅在于:不添加助稳定剂。
对比例3:
与实施例1相比,本对比例的区别仅在于:不添加光热稳定剂。
实施例和对比例含氯消毒液的有效氯稳定性测试
1、试验材料:实施例1~2和对比例1~3制备的消毒液;
2、试验方法,包括以下步骤:
(1)稳定性试验方法:将实施例1~2和对比例1~3制备的消毒液置于同一干燥箱中加热,在54℃环境下连续存放14天进行加速试验,然后采用碘量法测定加热前后消毒液中的有效氯的含量;
(2)有效氯含量的测定方法:
①称取4.0mL的实验样品置于内装有约20mL的水并已称量的200mL的烧杯中,然后全部移入100mL的容量瓶中,并稀释至刻度,获得试样溶液A。
②取10mL试样溶液A置于装有50mL水的碘量瓶中,加入10mL碘化钾溶液(100g/L)及10mL硫酸(3+100)溶液,迅速盖紧并水封,置于暗处静置5min。
③用硫代硫酸钠标准溶液滴定至浅黄色,加入2mL淀粉(10%)指示剂,继续滴定至蓝色消失即为终点。
④有效氯含量的测定结果为质量分数ω,数值为%,计算过程为:
式中:V——硫代硫酸钠标准溶液的体积分数,mL;
c——硫代硫酸钠标准溶液的浓度,mol/L;
m1——试样的质量数值,g;
M——氯(Cl)的摩尔质量数值,M=35.453g/mol。
3、试验结果如下表1所示。
由表1可知,本发明实施例1~2制备的消毒液在加速试验后,有效氯下降率均小于10%,其中以实施例1制备的消毒液中有效氯下降率最低,为本发明的最佳实施例;
与实施例1相比,实施例2在减少稳定剂的情况下,次氯酸钠稳定性下降。对比例1在不添加稳定剂情况下,次氯酸钠有效氯含量下降很快,达29.18%;对比例2不添加助稳定剂情况下,次氯酸钠稳定性有所下降,说明助稳定剂对次氯酸钠稳定性具有促进作用;对比例3在不添加光热稳定剂的情况下,次氯酸钠下降较大,说明光热稳定剂对次氯酸钠稳定性起到比较重要的作用,有必要添加使用。
表1含氯消毒液的有效稳定性测试结果
Claims (10)
1.一种高效稳定次氯酸钠消毒液,其特征在于,由以下质量百分比的原料组成:次氯酸钠95~100%,稳定剂0.1~5%,表面活性剂0.01~2%,助稳定剂0.01~0.5%,光热稳定剂0.05~0.2%,pH调节剂0.1~5%,香精0.01~0.2%。
2.根据权利要求1所述的一种高效稳定次氯酸钠消毒液,其特征在于,由以下质量百分比的原料组成:次氯酸钠98~100%,稳定剂0.3~1%,表面活性剂0.3~1%,助稳定剂0.1~0.3%,光热稳定剂0.1~0.2%,pH调节剂0.1~2%,香精0.01~0.1%。
3.根据权利要求1所述的一种高效稳定次氯酸钠消毒液,其特征在于,由以下质量百分比的原料组成:次氯酸钠98.25%,稳定剂0.5%,助稳定剂0.2%,光热稳定剂0.2%,表面活性剂0.5%,pH调节剂0.3%,香精0.05%。
4.根据权利要求1~3任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述稳定剂为溴化钾、氯化钠、钼酸钠、硅酸钠、硼酸钠中的至少一种。
5.据权利要求4任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述稳定剂为溴化钾和氯化钠,所述溴化钾和氯化钠的质量比为(0.9~1.2):1。
6.据权利要求4任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述溴化钾和氯化钠的质量比为1:1。
7.根据权利要求1~3任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述表面活性剂为十二烷基二苯醚二磺酸钠、十二烷基二甲基两性甜菜碱、脂肪醇聚氧乙烯醚硫酸钠和脂肪醇聚氧乙烯醚硫酸钠中的至少一种。
8.根据权利要求1~3任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述助稳定剂为亚氨基二琥珀酸四钠。
9.根据权利要求1~3任一项所述的一种高效稳定次氯酸钠消毒液,其特征在于,所述光热稳定剂为葡萄糖和麦芽糖醇,所述溴葡萄糖和麦芽糖醇质量比为1:1;所述pH调节剂为氢氧化钠、氢氧化钾中的至少一种。
10.一种高效稳定次氯酸钠消毒液的配制方法,其特征在于,包括以下步骤:
(1)将5%次氯酸钠置入反应器中,加入稳定剂、表面活性剂、助稳定剂、光热稳定剂,搅拌10~20分钟使固体物完全溶解,得到混合溶液A备用;
(2)将pH调节剂、香精一次加到步骤路(1)中得到的混合溶液A中混合,搅拌15~30分钟后,放置2~4小时,得到次氯酸钠消毒液。
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