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D-Isoascorbic acid Na salt

Cas:
6381-77-7
Molecular Structure:
Molecular Formula:
C6H7NaO6
Molecular Weight:
198.12
Alias:
異維生素C鈉,赤藻糖酸鈉,D-2,3,4,5,6-五羥基-2-己烯酸-4-內(nèi)酯鈉 D-Sodium isoascorbiate D-Erythro-hex-2-enonic acid gamma-lactone monosodium salt 2,3-Didehydro-3-O-sodio-D-erythro-hexono-1,4-lactone Sodium erythorbate Sodium Isoascorbate Monohydrate D-Araboascorbic Acid Sodium Salt Erythorbic Acid Sodium Salt Isoascorbic Acid Sodium Salt Sodium D-Araboascorbate
Product order:
Name Specifications Packing Price Delivery
D-Isoascorbic acid Na salt 98% 25g RMB 93.5 Consulting service
D-Isoascorbic acid Na salt 98% 500g RMB 539 Consulting service
D-Isoascorbic acid Na salt 98% 100g RMB 203.5 Consulting service
Character:
熔點(diǎn)200℃。白色或稍帶黃色的結(jié)晶顆?;蚍勰?,無(wú)臭,稍有咸味,易溶于水(約7mL水能溶1g)。干燥狀態(tài)在空氣中穩(wěn)定,呈水溶液時(shí)遇空氣、微量金屬、熱和光易變質(zhì)。
熔點(diǎn):154-164℃
比旋光度:97°
Quality Standard:
   
   外觀Appearance                          白色結(jié)晶性顆?;蚍勰?BR>紅外光譜鑒別Infrared spectrometry       和對(duì)照品匹配
純度Purity                              ≥98% (GC)  
水溶解試驗(yàn)solubility in water           合格
比旋光度Specific rotation [a]20/D       +95.5 ~ +98.0 deg(C=10, H2O)
澄明度clarity                           合格
PH                                      5.5~8.0
草酸試驗(yàn)oxalic acid  tes                合格
Storage:

用途  化妝品抗氧劑。在化妝品中可消耗氧,還原高價(jià)金屬離子,把氧化還原電勢(shì)轉(zhuǎn)移到還原的范圍,并有減少產(chǎn)生不良的氧化產(chǎn)物。還可用作防腐助色劑。
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