We can supply Citric Acid and Oxalic Acid, and offer products' specification and price as follows:
CITRIC ACID
Item: BP93
Characteristic: Colorless Crystals
Solubility,Clarity&color of solution, Identification, Barium
purity: 99.5-101.1%, Packing 25kgs/polyetheIn bag
The price is USD580/MT FOB QINGDAO

OXALIC ACID CONTENT: 99.6-99.4% MIN.
OXALIC ACID RDICAL: 0.08-0.01% MAX.
ASH: 0.08-0.01% MAX.
HEAVY METAL: 0.001-0.002% MAX.
Fe: 0.0015-0.002%MAX.
CHLORIDE: 0.003-0.004% MAX.
Above products? package are 25kg/bag
The price is 430USD/MT FOB QINGDAO
QINGDAO SANQING CHEMICAL FACTORY
Tel:+86-532 85830861
Fax:+86-532 85813445
Email:gabrileli@163.com