GFS Chemicals & Solutions

Turbidity 5.0 NTU +/- 0.05 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

CH₃(CH₂)₃CH(CH₂CH₃)COOH CAS#: 149-57-5 F.W.: 144.21

Made from potassium chloride.

(NH₄)H₂PO₄ CAS#: 7722-76-1 F.W.: 115.03

Al₂O₃ CAS#: 1344-28-1 F.W.: 101.96 Chromatographic Grade. Camag 507-C-I

Na₂S₂O₃•5H₂O CAS No.: 10102-17-7 F.W.: 248.18 NFPA No.: 0-0-0 Specific Gravity: 1.020 DOT: NR Description: 0.1 mol/L

For checking calibration of coulometric KF equipment. Water 0.50 +/- 0.02 mg/g NIST Traceable

K₂S₂O₇ CAS#: 7790-62-7 F.W.: 254.33

CF₃COOH CAS#: 76-05-1 F.W.: 114.02 Perfluoroacetic acid

NaOCl CAS#: 7681-52-9 F.W.: 74.44

CuCl CAS#: 7758-89-6 F.W.: 98.99 Copper (I) Chloride

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric Acid NIST Traceable

80% Tech

ACS Reagent Grade, Hexahydrate

CAS#:  75-05-8 F.W.:  41.05 NFPA#:  2-3-0 Specific Gravity:   0.780 DOT:  3/II Also meets ACS Specifications

Na₂C₄H₄O₆•2H₂O CAS#: 6106-24-7 F.W.: 230.08

AA or colorimetric standard

K₂CO₃ CAS#: 584-08-7 F.W.: 138.21

KMnO₄ CAS#: 7722-64-7 F.W.: 158.04 NFPA#: 2-0-1 Oxidimetric standard. Frequent restandardization recommended. 0.02 mol/L

CuSO₄•5H₂O CAS#: 7758-99-8 F.W.: 249.68

KI CAS#: 7681-11-0 F.W.: 166.00

CAS #: 1310-58-3 F.W.: 56.11 DOT: 3/II Descriptions: 0.1 mol/L

Made from potassium chloride. Conductivity 100,000 +/- 1,000 uS/cm

ACS Reagent Grade, Nonahydrate