抗坏血酸维生素C

详细说明

Ascorbic Acid (Vitamin C) (50-81-7)

Formula: C₆H₈O₆

M.W.: 176.13

Appearance: White or almost white crystals, crystalline powder

Specifications: BP2016 / USP39/FCC10/EP8.8/E300

Identification	Positive Reaction
Melting Point	About 190℃ - 192℃
PH (with 2% water solution)	2.4 - 2.8
PH (with 5% water solution)	2.1 - 2.6
Clarity of Solution	Clear
Color o Solution	BY7 max
Coper	5ppm max
Heavy Metals	10ppm max
Mercury	0.1ppm max
Lead	2ppm max
Arsenic	3ppm max
Oxalic Acid	0.2% max
Iron	2ppm max
Impurity E	0.2% max
Loss of Drying	0.4% max
Sulphate Ash (Residue on Ignition)	0.1% max
Specific Optical Rotation	+20.5° - +21.5°
Residual Solvents	Pass
Assay	99.0% - 100.5%

Packing: 25kg carton, 22mt/20'Fcl

Distributor:

Company Name	Address
NORBRIGHT INVESTMENT CO., LTD	1-702 Chuangzhi Building, 482 Dongmanzhong Road, Sino-Singapore Eco-City Tianjin, China 300467
Telephone number	+86 22 2528 8888
Fax number	+86 22 6622 2078
Email	info@nb-invest.com

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