苯甲酸，Benzoic acid；meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)

图片 苯甲酸，Benzoic acid；meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)
别名：苯羧酸；羧基苯；BA；Benzenecarboxylic acid；Carboxybenzene

线性分子式: C6H5COOH CAS号: 65-85-0 分子量: 122.12 Beilstein: 636131 EC 号: 200-618-2 MDL编号: MFCD00002398 PubChem化学物质编号: 57647710
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: 18102
CAS号: 65-85-0
MDL号: MFCD00002398
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¥571.78

说明

一般描述

Benzoic acid is an aromatic monocarboxylic acid. It occurs in the form of colorless leaflets or needles. It reacts with hydrogenating reagents to afford hexahydrobenzoic acid. On decomposition (by heating) in the presence of lime or alkali, it affords benzene and carbon dioxide. It can be synthesized by the cobalt or manganese catalyzed atmospheric oxidation of toluene.[1]

应用

Benzoic acid may be employed as a standard in the quantitative and calorimetric studies. It may be employed as an intermediate in the synthesis of the following:[1]
  • paints
  • pigments
  • varnish
  • wetting agents
  • aroma compounds
  • benzoyl chloride
  • benzotrichloride
It was used to investigate the mechanism of complex addition reaction of hydroxyl radicals with various aromatic compounds.[2]
 
 

属性

蒸汽密度

4.21 (vs air)

质量水平

200

蒸汽压

10 mmHg ( 132 °C)

测定

99.5-100.5% (alkalimetric)

形式

crystalline

自燃温度

1061 °F

质量

meets analytical specification of Ph. Eur., BP, USP, FCC, E210

杂质

oxidisable substances, complies
residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.03% halogen compounds (as Cl)
≤0.7% water (Karl Fischer)

灼烧残渣

≤0.05% (as SO4)

缺失

≤0.5% loss on drying, 3 h (via H2SO4)

pH值（酸碱度）

3-5 (20 °C, 0.1%)

bp

249 °C (lit.)

mp

121-125 °C (lit.)

溶解性

water: soluble (2.9 g/l at 25 °C)

痕量阳离子

As: ≤3 mg/kg
Cu: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Zn: ≤20 mg/kg

适用性

complies for appearance of solution
complies for reaction against H2SO4

SMILES string

OC(=O)c1ccccc1

InChI

1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)

InChI key

WPYMKLBDIGXBTP-UHFFFAOYSA-N

 

安全信息

象形图

CorrosionHealth hazard
GHS05,GHS08

警示用语：

Danger

危险声明

H315 - H318 - H372

危险分类

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation

靶器官

Lungs

储存分类代码

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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