3,4-二氟-2-甲氧基苯甲酸

  • 基本信息
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 海关数据
  • 结构与计算化学

3,4-二氟-2-甲氧基苯甲酸 基本信息

中文名称:
3,4-二氟-2-甲氧基苯甲酸 
中文别名:
3,4-二氟-2-甲氧基苯甲酸 
英文名称:
Benzoic acid,3,4-difluoro-2-methoxy-
英文别名:
3,4-Difluoro-2-methoxybenzoic acid;
PC7836 
CAS No.:
875664-52-1
分 子 式:
C8H6F2O3
分 子 量:
188.13
精确分子量:
188.02900
PSA:
46.53000
MDL:
MFCD03428593
InChI:
InChI=1/C8H5BrF3NO/c9-7-2-5(4-13-14)1-6(3-7)8(10,11)12/h1-4,14H/b13-4+
风险术语:
R36/37/38
安全术语:
S26S37
分子结构式:
SDS:
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3,4-二氟-2-甲氧基苯甲酸 物化性质

外观与性状:
液体
密度:
1.399
熔点:
137-139°C
沸点:
277 °C
闪点:
121 °C
折射率:
1.512
存储条件/存储方法:

密闭,阴凉,干燥处

稳定性相关:

按规定使用和贮存的不会分解,避光氧化物

其它信息:

1.      性状:白色至奶油色针状晶体

2.      密度(g/mL20 ºC):未确定

3.      相对蒸汽密度(g/mL,空气=1):未确定

4.      熔点(ºC):137-139

5.      沸点(ºC,常压):未确定

6.      沸点(º18.6mmHg):未确定

7.      折射率:未确定

8.      闪点(º F):未确定

9.      比旋光度(º):未确定

10.   自燃点或引燃温度(ºC):未确定

11.   蒸气压(kPa,):未确定

12.   饱和蒸气压(kPa,60ºC):未确定

13.   燃烧热(KJ/mol):未确定

14.   临界温度(ºC):未确定

15.   临界压力(KPa):未确定

16.   油水(正辛醇/水)分配系数的对数值:未确定

17.   爆炸上限(%,V/V):未确定

18.   爆炸下限(%,V/V):未确定

19.   溶解性:不能溶解于水

3,4-二氟-2-甲氧基苯甲酸 安全信息

海关代码:
2918990090
危险类别码:
R36/37/38
安全说明:
S26-S37
安全标志:
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
S37:使用合适的防护手套。
危险标志:
Xi: Irritant;

3,4-二氟-2-甲氧基苯甲酸 毒理性

生态数据:

对水是无危害的,若无政府许可,勿将材料排入周围环境。

3,4-二氟-2-甲氧基苯甲酸 MSDS

  Material Safety Data Sheet

Section 1. Identification of the substance
  3,4-Difluoro-2-methoxybenzoic acid
    Product Name:
    Synonyms:

Section 2. Hazards identification
    Harmful by inhalation, in contact with skin, and if swallowed.
    H315:        Causes skin irritation    
    H319:        Causes serious eye irritation    
    H335:        May cause respiratory irritation    
    P261:        Avoid breathing dust/fume/gas/mist/vapours/spray    
    Wear protective gloves/protective clothing/eye protection/face protection
    P280:
    P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
    and easy to do – continue rinsing
    P304+P340:        IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing    
    P405:        Store locked up    

Section 3. Composition/information on ingredients.
    3,4-Difluoro-2-methoxybenzoic acid
    Ingredient name:
    CAS number:        875664-52-1    

Section 4. First aid measures
    Immediately wash skin with copious amounts of water for at least 15 minutes while removing
    Skin contact:
    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.    
    Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
    Ingestion:

Section 5. 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.

Section 6. 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.

Section 7. 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.
    Storage:        Store in closed vessels.    

Section 8. 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.

Section 9. Physical and chemical properties
    Not specified
    Appearance:
    Boiling point:        No data    
    Melting point:        No data    
    Flash point:        No data    
    Density:        No data    
    Molecular formula:        C8H6F2O3    
    Molecular weight:        188.1    

Section 10. Stability and reactivity
    Conditions to avoid: Heat, flames and sparks.
    Materials to avoid: Oxidizing agents.
    Possible hazardous combustion products: Carbon monoxide, hydrogen fluoride.

Section 11. Toxicological information
    No data.

Section 12. Ecological information
    No data.

Section 13. 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.

Section 14. Transportation information
    Non-harzardous for air and ground transportation.

Section 15. 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

3,4-二氟-2-甲氧基苯甲酸 海关数据

中国海关编码:2918990090

概述:
2918990090. 其他含其他附加含氧基羧酸(包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物). 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:30.0%
申报要素:
品名, 成分含量, 用途
摘要/Summary:
2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

3,4-二氟-2-甲氧基苯甲酸 分子结构与计算化学数据

分子结构数据

五、分子性质数据:

1、   摩尔折射率:39.84

2、   摩尔体积(m3/mol):134.3

3、   等张比容(90.2K):340.3

4、   表面张力(dyne/cm):41.1

5、   极化率10-24cm3):15.79

计算化学数据

1.疏水参数计算参考值(XlogP):1.6

2.氢键供体数量:1

3.氢键受体数量:5

4.可旋转化学键数量:2

5.互变异构体数量:无

6.拓扑分子极性表面积46.5

7.重原子数量:13

8.表面电荷:0

9.复杂度:198

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

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