异噻唑啉酮(Isothiazolinones)简介

在水产养殖中,细菌及真菌过度繁殖会导致各种鱼类病害的发生,尤其是藻类的过度繁殖会显著降低水中含氧量,使鱼类大批因缺氧而死亡。

在工业水处理中,菌藻的过度繁殖会降低传热效率,使设备加快腐蚀。在油田用水中过量的菌藻会产生大量粘泥阻塞设备,给生产带来极大的隐患。由此可见,必须通过人为的手段控制各种水体中的菌藻含量,因此产生了各种各样的水处理用杀菌剂。

异噻唑啉酮主要由5-氯-2-甲基-4-异噻唑啉-3-酮(CMI)和 2-甲基-4-异噻唑啉-3-酮(MI)组成。异噻唑啉酮是通过断开细菌和藻类蛋白质的键而起杀生作用的。异噻唑啉酮与微生物接触后,能迅速地不可逆地抑制其生长,从而导致微生物细胞的死亡,故对常见细菌、真菌、藻类等具有很强的抑制和杀灭作用。杀生效率高,降解性好,具有不产生残留、操作安全、配伍性好、稳定性强、使用成本低等特点。能与氯及大多数阴、阳离子及非离子表面活性剂相混溶。高剂量时,异噻唑啉酮对生物粘泥剥离有显著效果。

异噻唑啉酮是一种广谱、高效、低毒、非氧化性杀生剂。广泛运用于油田、造纸、农药、切削油、皮革、油墨、染料、制革等行业。

异噻唑啉酮(Isothiazolinones)的技术指标

项  目 指  标
GB/T 3657-2017
Ⅰ类 Ⅱ类
外 观 淡黄色或黄绿色透明液体 淡黄或淡蓝绿色透明液体
活性物含量 /% 14.0~15.0 ≥2.0
pH(原液) 2.0~4.0 2.0~5.0
密度(20℃)/g·cm-3 1.24~1.32 ≥1.03
CMI/MI(质量百分比) 2.5~3.4 2.5~3.4

异噻唑啉酮(Isothiazolinones)使用方法

异噻唑啉酮2类产品作粘泥剥离剂时,投加浓度150-300mg/l;作杀菌剂时,每隔3-7天投加一次,投加剂量80~100mg/L。能与氯气等氧化型杀菌剂同时使用,不能用于含硫化物的冷却水系统。异噻唑啉酮与季铵盐复合使用效果较佳。

异噻唑啉酮做工业杀菌防霉剂使用时,一般浓度为0.05-0.4%。

异噻唑啉酮(Isothiazolinones)的技术文章

Properties:

Isothiazolinones is composed of 5-chloro-2-methyl-4-thiazoline-3-ketone (CMI) and 2-methyl-4-thiazoline-3-ketone (MI). The bactericidal effect of Isothiazolinones is carried out through breaking the bond between bacteria and algae protein. When contacted with microbes, Isothiazolinones can quickly inhibit their growth, thus leading to death of these microbes. Isothiazolinones has strong inhibition and biocidal effects on ordinary bacteria, fungi and alga, and has many advantages such as high biocidal efficiency, good degradation, no residual, safety in operation, good compatibleness, good stabilization, low cost in operation.

Isothiazolinones can mix with chlorine and most cation, anion, and non-ionic surfactants. When used at high dosage, its biosludge stripping effect is excellent.

Isothiazolinones is a kind of fungicidal with properties of broad spectrum, high efficiency, low toxicity and non-oxidative, it is the ideal biocidal in industrial circulating cool water system and in wastewater treatment in oilfield, papermaking, pesticide, cutting oil, leather, detergent and cosmetics etc..

Specification:

items index
Grade I Grade II
Appearance Amber transparent liquid Light yellow or light green transparent liquid
Active content % 14.0-15.0 1.5-1.8
pH (as it) 2.0-4.0 2.0-5.0
Density (20℃)g/cm3 1.24-1.32 1.02-1.05
CMI/MI (wt %) 2.5-3.4 2.5-3.4

Usage:

When used as sludge stripper for grade II, the dosage of 150-300mg/L is preferred, when used as boicide, the dosage of 80-100mg/L is preferred, and charges every 3-7 days. No used together with oxidative fungicidal such as chlorine, and no used in cooling water system containing sulfur. When used together with quaternary amine, the effect will be better. When used as industrial fungicide, the dosage of 0.05-0.4% is preferred.

Package and Storage:

25kg in plastic barrel, or confirmed by clients. Storage for ten months in room shady and dry place.

Safety Protection:

Corrosive, Avoid contact with eye and skin, Wear splash resistant safety goggles and rubber glores.once contacted, flush with water.