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L-(+)-Lactic acid

Cas:
79-33-4
Molecular Structure:
MDL:
MFCD00064266
Molecular Formula:
C3H6O3; CH3CHOHCOOH
Molecular Weight:
90.08
Alias:
(S)-2-Hydroxypropionic acid Sarcolactic acid
Product order:
Name Specifications Packing Price Delivery
L-(+)-Lactic acid 85-90% 500ml RMB 143 Consulting service
L-(+)-Lactic acid 85-90% 25kg RMB 1804 Consulting service
L-(+)-Lactic acid 96% 500ml RMB 121 Consulting service
L-(+)-Lactic acid 96% 2.5L RMB 539 Consulting service
Character:
本品为无色或微黄色透明粘性液体、微酸性,有引湿性,水溶液显酸性反应。与水、乙醇或乙醚能任意混合,在氯仿中不溶。
密度: 1.05  
[a]20/D: -2° (c=neat)  
闪点: >110°C
Quality Standard:
90%含量级:

鉴别                          水溶液显酸性和乳酸盐呈正反应
乳酸含量Assay                 ≥85-90%
L-乳酸占总酸的含量            ≥95%
色度                          ≤50APHA
6个月后色度(25℃)          ≤50APHA
密度(20℃)                  1.18-1.21g/ml
气味                          微酸性
重金属                        ≤0.001%
铁盐                          ≤0.001%
氯化物                        ≤0.002%
砷盐                          ≤0.0001%
硫酸盐                        ≤0.005%
钙盐                          ≤0.002%
灼烧残渣                      ≤0.1%
易炭化合物                    通过实验
醚中溶解度                    通过实验
还原糖                        通过FCC实验
草酸.磷酸.酒石酸.柠檬酸       通过USP实验
甲醇                          ≤0.2%
氰化物                        ≤0.0005%  


96%含量级(热稳定型):

外观Appearance                          液体
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥96.0% (中和滴定)
葡萄糖glucose                            ≤0.5%  
水分water                                ≤1%(K.F)
水溶解试验solubility in water           合格,100MG/ML

(备注;96%含量有固体和液体2种形态)

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