Sodium Sulfate (SO42-) Back Catalog number: 50037 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82503 EPA Method 8250/8250A - Analytes Mix #11 Price on request 680573 2,3,5-Trichloro-6-hydroxybenzoic acid, 100mg Price on request 95790 Phthalate Mix, 1000µg/ml in MeOH, 1ml Price on request