L-Glutamic acid

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price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-16 00:14
Browse the number: 177
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Product details
Item
Standard

Appearance
White crystals or crystalline powder

Specific rotation[α]20/D
(C=10 in 2N HCl)
+31.5 to +32.4°

State of solution

(Transmittance)
Clear and colorless not less than 98.0%

Chloride (Cl)
Not more than 0.020%

Ammonium (NH4)
Not more than 0.02%

Sulfate (SO4)
Not more than 0.020%

Iron (Fe)
Not more than 10ppm

Heavy metal(Pb)
Not more than 10ppm

Arsenic(As2O3)
Not more than 1ppm

Other Amino Acids
Chromatographically

Not detectable

Loss on drying
Not more than 0.10%

Residue on ignition(sulfated)
Not more than 0.10%

Assay
99.0% to 100.5%

pH
3.0 to 3.5

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