BARKER INDUSTRIES, INC.

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Barker Industries, Inc. Charlotte, NC

Highpurityinorganicchemicalsforthepharmaceutical,aerospace,Randelectronicindustries. BarkerIndustries,Inc. 220 Crompton St. Charlotte, NC 28273 2841OldSteeleCreekRd. Charlotte, NC 28208 704.391.1023 tel 704.393.0464 fax sales@barkerind.com Barker Industries Inc., has been manufacturing

Strontium Chloride Hexahydrate,...

Strontium Chloride Hexahydrate, Reagent A.C.S. Assay:99.0-103.0%SrCl2 6H2O pH of a 5% solution:5.0-7.0 at 25 C MAXIMUM ALLOWABLE Insoluble matter: 0.005% Sulfate (SO4): 0.001% Barium (Ba): 0.05% Calcium (Ca): 0.05% Magnesium (Mg): 2 ppm Heavy

Sulfanilic Acid, (ACS)

Sulfanilic Acid, Reagent A.C.S. Assay:98.0-102.0% of the form offered MAXIMUM ALLOWABLE Residue after ignition: 0.01% Insoluble in sodium carbonate solution: 0.02% Chloride (Cl): 0.002% Nitrite (NO2): 0.5 ppm Sulfate (SO4): 0.01% If

Tartaric Acid, (ACS)

Tartaric Acid, Reagent A.C.S. Assay:99.0%HOOC(CHOH)2COOH MAXIMUM ALLOWABLE Insoluble matter: 0.005% Residue after ignition: 0.02% Chloride (Cl): 0.001% Oxalate (C2O4): Passes test Phosphate (PO4)): 0.001% Sulfur compounds (as SO4): 0.002%

Zinc Acetate Dihydrate, (ACS)

Zinc Acetate Dihydrate, Reagent A.C.S. Assay:98.0-101.0%(CH3COO)2Zn 2H2O pH of a 5% solution:6.0-7.0 at 25 C MAXIMUM ALLOWABLE Insoluble matter: 0.005% Chloride (Cl): 5 ppm Sulfate (SO4): 0.005% Calcium (Ca): 0.005% Magnesium (Mg): 0.005%