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Ascorbic Acid for analysis EMSURE

Merck Ascorbic Acid for analysis EMSURE

Spending Type : Consumable
Category : Chemical Reagent
Type : Classical Lab Chemicals
SKU : 1.00468.0500

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Deskripsi Merck Ascorbic Acid for analysis EMSURE

100468 Asam Askorbat-L(+) untuk analisa EMSURE® ACS,Reag. Ph Eur




Simpan pada +5°C hingga +30°C.

Assay (iodometric)99.0 - 100.5 %
Identity (IR-spectrum)conforms
Appearancewhite or almost white, cristalline powder
Appearance of solution (50 g/l CO₂-free water)clear (≤ 3 NTU) and not so intense in colour than reference solution BY₇
pH (50 g/l CO₂-free water)2.1 - 2.6
Spec. rotation [α²0/D (100 g/l, water)+20.5 - +21.5 °
Chloride (Cl)≤ 50 ppm
Sulfate (SO₄)≤ 20 ppm
Cu (Copper)≤ 5 ppm
Fe (Iron)≤ 2 ppm
Heavy metals (ACS)≤ 10 ppm
Oxalic acid≤ 0.2
Related substances (HPLC) (Impurity C)≤ 0.15 %
Related substances (HPLC) (Impurity D)≤ 0.15 %
Related substances (HPLC) (unspecified impurities singly)≤ 0.10 %
Related substances (HPLC) (sum of impurities (except impurity A and D))≤ 0.2 %
Sulfated ash (600 °C)≤ 0.05 %
Loss on Drying (105 °C)≤ 0.1 %