化学品概述
苹果酸在正常情况下稳定,湿度高时有吸湿性。三斜晶系白色晶体。易溶于甲醇、乙醇、丙酮和其他许多极性溶剂。。
基本信息
- 中文名称:
- 中文别名:
- 英文名称:
- 英文别名:
- 分子式:
- 分子量:
- CAS:
- EINECS编号:
- MDL编号:
- 精确质量:
- InChI:
- InChI Key:
- MOL文件:
- PSA:
- LogP:
- FEMA编码:
- COE编码:
理化性质
- 外观性质:
-
熔点:
131-133 °C(lit.)
- 沸点:
-
密度:
1.609
- 折射率:
- 比旋光度:
-
闪点:
203 °C
-
溶解性:
203 °C
-
酸度系数(pKa):
methanol: 0.1 g/mL, clear, colorless
- 相对极性:
-
PH值:
2.3 (10g/l, H2O, 20℃)
- 爆炸极限值(explosive limit):
- 敏感性:
-
储存条件:
2-8°C
- 检测方法:
-
蒸气压:
<0.1 mm Hg ( 20 °C)
-
Merck:
14,5707
-
BRN:
1723539
-
NIST化学物质信息:
http://webbook.nist.gov/cgi/cbook.cgi?ID=6915-15-7&Units=SI
- EPA化学物质信息:
安全信息
-
危化品标志:
Xn,Xi
-
危化代码:
22-37/38-41-36/37/38-42/43-34
-
安全代码:
26-39-37/39-36-36/39
-
海关编码/HS编码:
29181980
- 危化品运输编码:
-
WGK Germany:
1
-
RTECS:
ON7175000
-
TSCA:
Yes
- 危化等级:
- 包装类别:
- 毒理资料:
- 灭火剂:
应用领域
食品工业用作酸味剂、色泽保持剂、防腐剂和蛋黄等的乳化稳定剂等,也用于制药The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including 魏-opioid receptor agonists, 1α,25-dihydroxyvitamin D3 analogue, and phoslactomycin B.用作清凉饮料(如乳酸菌饮料、乳饮料、汽水、可乐)、冷冻食品(如果子露、冰激凌等),加工食品(如果子酒、蛋黄酱)的酸味剂,水果饮料等的色泽保持剂、防腐剂和蛋黄等的乳化稳定剂。用途还包括用作药品、化妆品、洗牙液、金属清洁剂、缓冲剂、纺织工业中的阻凝剂,聚脂纤维的荧光增白剂的原料
制备方法/合成路线
参考资料
- The naturally occurring isomer is the L-form which has been found in apples and many other fruits and plants. Prepn of D- and DL-forms, and resolution of racemic mixture: McKenzie et al., J. Chem. Soc. 123, 2875 (1923). Solubilities: Descamps, Bull. Soc. Chim. Belg. 49, 91 (1940). Microbial production of L-form: Kitahara; Abe et al., US 2972566; US 3063910 (1961, 1962, both to Kyowa). Configuration: J. A. Mills, W. Klyne in Progress in Stereochemistry vol. 1, W. Klyne, Ed. (Academic Press, New York, 1954) pp 182-183; E. L. Eliel, Stereochemistry of Carbon Compounds (McGraw-Hill, New York, 1962) pp 97-98; Cymerman-Craig, Roy, Tetrahedron 21, 1847 (1965). Review of uses: Manuf. Chem. Aerosol News 35, 56 (December, 1964). Review: S. E. Berger, "Hydroxy Dicarboxylic Acids" in Kirk-Othmer Encyclopedia of Chemical Technology vol 13 (Wiley-Interscience, New York, 3rd ed., 1981) pp 103-110.
- MSDS
图谱
计算化学数据
- 疏水参数计算参考值(XlogP):
- 氢键供体数量 :
- 氢键受体数量:
- 可旋转化学键数量:
- 拓扑分子机型表面积(TPSA) :
- 重原子数量:
- 形式电荷:
- 复杂度:
- 同位素原子数量:
- 确定原子立构中心数量:
- 不确定原子立构中心数量:
- 确定化学键立构中心数量:
- 不确定化学键立构中心数量:
- 共价键单元数量: