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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:
本品為無(wú)色或微黃色透明粘性液體、微酸性,有引濕性,水溶液顯酸性反應(yīng)。與水、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)  
閃點(diǎn): >110°C
Quality Standard:
90%含量級(jí):

鑒別                          水溶液顯酸性和乳酸鹽呈正反應(yīng)
乳酸含量Assay                 ≥85-90%
L-乳酸占總酸的含量            ≥95%
色度                          ≤50APHA
6個(gè)月后色度(25℃)          ≤50APHA
密度(20℃)                  1.18-1.21g/ml
氣味                          微酸性
重金屬                        ≤0.001%
鐵鹽                          ≤0.001%
氯化物                        ≤0.002%
砷鹽                          ≤0.0001%
硫酸鹽                        ≤0.005%
鈣鹽                          ≤0.002%
灼燒殘?jiān)?nbsp;                     ≤0.1%
易炭化合物                    通過(guò)實(shí)驗(yàn)
醚中溶解度                    通過(guò)實(shí)驗(yàn)
還原糖                        通過(guò)FCC實(shí)驗(yàn)
草酸.磷酸.酒石酸.檸檬酸       通過(guò)USP實(shí)驗(yàn)
甲醇                          ≤0.2%
氰化物                        ≤0.0005%  


96%含量級(jí)(熱穩(wěn)定型):

外觀Appearance                          液體
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥96.0% (中和滴定)
葡萄糖glucose                            ≤0.5%  
水分water                                ≤1%(K.F)
水溶解試驗(yàn)solubility in water           合格,100MG/ML

(備注;96%含量有固體和液體2種形態(tài))

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