L-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址
 

L-Aspartic acid can be used as a synthetic sweetener and medicine for heart diseases. Also, it is used as liver function promoters, ammonia antidote, fatigue eliminating medicament and one component of amino acid transfusion. L-Aspartic acid is a white crystalline or crystalline powder that has a slightly sour  taste. L-Aspartic acid is soluble in boiling water, slightly soluble in water(0.5%) at 25℃. It dissolves easily in gadoleic acid and caustic soda solution but insoluble in ethanol, ether. It decomposes at 270℃ with Isoelectric point at 2.77.  Aspartic acid dextrorotates in acid solution, levorotates in aqueous slkali,and dextrorotates in aqueous solution.

 


Quality Standard

(AJI FCC etc Standard)

ITEM

LIMIT

ASSAY

98.5%~101.0%

SPECIFIC ROTATION [a]D20

+24.8°~+25.8°

(Transmittance)

≥98.0%

pH

2.5~ 3.5

CHLORIDE

≤ 0.002%

LOSS ON DRYING

≤0.20%

RESIDUE ON IGNITION

≤ 0.10%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 10 PPM

HEAVY METALS (Pb)

≤10 PPM

(Ammonium salt)[NH4+]

≤0.02%

ARSENIC (As2O3)

≤ 1 PPM

 

 
D-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址
 

D-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 is a white or pale white crystalline powder. It is an important chiral compound that plays an important role in medicines and foods. D-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 plays an important part in precursors and it can used as an intermediate for synthetic chiral drugs .D-乐虎国际官方网下载_乐虎app手机版-乐虎国际娱乐登录网址 has a slightly sour  taste. It is soluble in boiling water, slightly soluble in water(0.5%) at 25℃. Also, it dissolves easily in gadoleic acid, gadoleic acid and caustic soda solution but insoluble in ethanol and ether. It decomposes at 270℃.


Quality Standard

(AJI FCC etc Standard)

ITEM

标准LIMIT

ASSAY

98.5%~101.0%

SPECIFIC ROTATION [a]D20

-23.8°~-25.8°

(Transmittance)

≥98.0%

pH

2.5~ 3.5

CHLORIDE

≤ 0.002%

LOSS ON DRYING

≤0.20%

RESIDUE ON IGNITION

≤ 0.10%

SULFATE(SO42-)

≤0.02%

IRON (Fe)

≤ 10 PPM

HEAVY METALS (Pb)

≤10 PPM

(Ammonium salt)[NH4+]

≤0.02%

ARSENIC (As2O3)

≤ 1 PPM

 
 
 
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