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37439-34-2生产厂家

37439-34-2价格

37439-34-2

37439-34-2结构式
37439-34-2结构式
  • 常用中文名:三氯吡啶醇钠
  • 常用英文名:Sodium 3,5,6-trichloro-2-pyridinolate
  • CAS号:37439-34-2
  • 分子式:C5HCl3NNaO
  • 分子量:220.416
  • 相关类别: 化学农药原药 杀虫剂中间体
  • 发布时间:2018-12-05 16:13:12
  • 更新时间:2024-01-02 12:19:05
  • 【用途一】
    用于生产高效低残留杀虫杀螨剂毒死蜱、甲基毒死蜱等
    【用途二】
    2-羟基-3,5,6-三氯吡啶又名三氯吡啶醇,是有机磷杀虫剂毒死蜱、甲基毒死蜱的中间体,工业上用其钠盐。

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中文名 3,5,6-三氯吡啶-2-醇钠
英文名 3,5,6-Trichloropyridin-2-ol Sodium
中文别名 三氯吡啶醇钠
英文别名 sodium 3,5,6-trichloropyridin-2-olate
EINECS 253-506-0
2-pyridinol, 3,5,6-trichloro-, sodium salt
2-pyridinol, 3,5,6-trichloro-, sodium salt (1:1)
Sodium 3,5,6-trichloro-2-oxo-2H-pyridin-1-ide
3,5,6-Trichloro-2-oxo-2H-pyridin-1-ide de sodium
Natrium-3,5,6-trichlor-2-oxo-2H-pyridin-1-id
Sodium 3,5,6-trichloro-2-pyridinolate
3,5,6-Trichloro-2-pyridinol sodium salt
MFCD08704561
沸点 325ºC at 760 mmHg
分子式 C5HCl3NNaO
分子量 220.416
闪点 150.4ºC
精确质量 218.902145
PSA 35.95000
LogP 3.18560
外观性状 灰白色粉末
储存条件 室温,密封
Material Safety Data Sheet

Section1. Identification of the substance
Product Name: Sodium 3,5,6-trichloropyridin-2-olate
Synonyms:

Section2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:Sodium 3,5,6-trichloropyridin-2-olate
CAS number:37439-34-2

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not specified
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C5HCl3NO.Na
Molecular weight:220.4

Section10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.


SECTION 16 - ADDITIONAL INFORMATION
N/A
危害码 (欧洲) Xi
海关编码 2933399090
【方法一】
三氯吡啶醇的工业合成有两条路线。
(1)将吡啶氯化制成2,3,5,6-四氯吡啶,然后将该四氯吡啶用氢氧化钠碱解制成三氯吡啶醇钠盐。
(2)用三氯乙酰氯与丙烯腈反应,得到三氯吡啶醇,再碱解得到其钠盐。
在1500L搪瓷反应釜中投入280kg三氯乙酰氯,过量丙烯腈及适量的溶剂和催化剂,升温回流反应,用气相色谱控制终点。当酰氯转化完毕后(约14h)即可停止反应,然后将反应物抽入蒸馏釜,减压脱溶。脱出的溶剂回收套用,溶剂脱尽后,将残余物抽入碱解釜,慢慢滴加30%NaOH进行碱解,控制温度在20~40℃。过滤,得到三氯吡啶醇钠盐湿品,即可直接进入下一步反应。
从反应历程出发,也可控制反应分三步完成。由此可有效控制副产物生成,提高反应收率和产品质量。
目前这两种工艺都可以生产,而用吡啶为原料时,反应过程中腐蚀性强,但产品质量好。
三氯吡啶醇钠湿品为灰黄色固体物。
海关编码 2933399090
中文概述 2933399090. 其他结构含非稠合吡啶环的化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素 品名, 成分含量, 用途, 乌洛托品请注明外观, 6-己内酰胺请注明外观, 签约日期
Summary 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%