Chlorine Chemistries


Precise reagents for chlorine testing applications.


Obtain accurate chlorine readings with high-quality chemistries. These Hach reagents are essential for municipal water systems, industrial processes and laboratory analysis.

LaMotte DPD 1R Free Chlorine TesTabs®, Pack of 100 , 6999A-J
$26.45

Mfr. Part # LaMotte 6999A-J

Product # 707896

LaMotte DPD 3R Total Chlorine TesTabs®, Pack of 1000, 6905A-M
$189.95

Mfr. Part # LaMotte 6905A-M

Product # 707894

LaMotte Reagent Refill for 7894 Chlorine Test Kit, R-7894
$46.00

Mfr. Part # LAMOTTE R-7894

Product # 707879

LaMotte DPD 3 Total Chlorine Reagent, 60 mL, P-6743-H
$18.45

Mfr. Part # LAMOTTE P-6743-H

Product # 707877

LaMotte DPD 3 Total Chlorine TesTabs®, Pack of 1000, 6197A-M
$165.00

Mfr. Part # LAMOTTE 6197A-M

Product # 707876

LaMotte DPD 3 Total Chlorine TesTabs®, Pack of 100, 6197A-J
$22.00

Mfr. Part # LAMOTTE 6197A-J

Product # 707875

LaMotte DPD 4 Total Chlorine TesTabs®, Pack of 1000, 6906A-M
$165.00

Mfr. Part # LAMOTTE 6906A-M

Product # 707874

LaMotte DPD 4 Total Chlorine TesTabs®, Pack of 100, 6906A-J
$22.00

Mfr. Part # LAMOTTE 6906A-J

Product # 707873

LaMotte DPD 1 Free Chlorine TesTabs®, Pack of 100, 6903A-J
$22.00

Mfr. Part # LAMOTTE 6903A-J

Product # 707872

LaMotte DPD 1 Free Chlorine TesTabs®, Pack of 1000, 6903A-M
$165.00

Mfr. Part # LAMOTTE 6903A-M

Product # 707871

LaMotte DPD 4 RAPID TesTabs®, Pack of 1000, 6899A-M
$165.00

Mfr. Part # LAMOTTE 6899A-M

Product # 707870

LaMotte DPD 4 RAPID TesTabs®, Pack of 100, 6899A-J
$22.00

Mfr. Part # LAMOTTE 6899A-J

Product # 707869

LaMotte Sodium Arsenite Solution, 60 mL, 4128-H
$19.20

Mfr. Part # LAMOTTE 4128-H

Product # 707863

Core & Main Sodium Thiosulfate, 1.0N, 1 L
$25.90

Mfr. Part # ST2965-Q

Product # 707269

Core & Main Sodium Thiosulfate, 1.0N, 500 mL
$19.85

Mfr. Part # ST2965-P

Product # 707268

Core & Main Sodium Thiosulfate, 0.00564N, 4 L
$172.45

Mfr. Part # ST2701-G

Product # 707258

Core & Main Sodium Thiosulfate, 0.00564N, 1 L
$45.80

Mfr. Part # ST2701-Q

Product # 707257

Core & Main Sodium Thiosulfate, 0.00564N, 500 mL
$30.30

Mfr. Part # ST2701-P

Product # 707256

Core & Main Phenylarsine Oxide, 0.00564N, 4 L
$199.95

Mfr. Part # PO4400-G

Product # 707157

Core & Main Phenylarsine Oxide, 0.00564N, 1 L
$146.80

Mfr. Part # PO4400-Q

Product # 707156

Core & Main Phenylarsine Oxide, 0.00564N, 500 mL
$89.80

Mfr. Part # PO4400-P

Product # 707155

Core & Main Iodide Reagent, 1 L
$45.00

Mfr. Part # IO2810-Q

Product # 707082

Core & Main Iodide Reagent, 500 mL
$33.95

Mfr. Part # IO2810-P

Product # 707081

LaMotte DPD 1B Liquid Free Chlorine Reagent *C2 60mL
$15.95

Mfr. Part # LAMOTTE P-6741-H

Product # 707559

LaMotte DPD 1A Liquid Free Chlorine Reagent 60mL
$15.95

Mfr. Part # LAMOTTE P-6740-H

Product # 707558

Hach Potassium Iodide Powder Pillows, pk/50, 2059996
$34.55

Mfr. Part # 2059996

Product # 701108

Hach Phenylarsine Oxide (PAO) Standard Solution, 0.00564 N, 1 L, 199953
$76.79

Mfr. Part # 199953

Product # 700815

Hach Phenylarsine Oxide (PAO) Standard Solution, 0.00564 N, 100 mL, 199942
$24.39

Mfr. Part # 199942

Product # 700814

Hach Phenylarsine Oxide (PAO) Standard Solution, 0.00564 N, 3.78 L, 199917
$146.00

Mfr. Part # 199917

Product # 700813

Hach Phenylarsine Oxide (PAO) Digital Titrator Cartridge, 0.00564 N, 199901
$33.69

Mfr. Part # 199901

Product # 700812

Hach Ferrous Ammonium Sulfate Solution, 0.25 N, 29 mL, 181133NC
$38.85

Mfr. Part # 181133NC

Product # 702646

Hach Acetate Buffer Solution, pH 4.0, 1 L, 1490953
$108.00

Mfr. Part # 1490953

Product # 701068

Hach Sodium Thiosulfate Standard Solution, Stabilized, 0.00246 N, 500 mL, 2408549
$46.69

Mfr. Part # 2408549

Product # 701526

Hach Sodium Thiosulfate Standard Solution, Stabilized, 0.00246 N, 100 mL MDB, 2408532
$26.65

Mfr. Part # 2408532

Product # 701525

Hach Iodine Standard Solution, 0.0282 N, 1 L, 2333353
$54.65

Mfr. Part # 2333353

Product # 701449

Hach Ferrous Ethylenediammonium Sulfate Digital Titrator Cartridge, 0.00564 N, 2292301
$29.59

Mfr. Part # 2292301

Product # 701395

Hach Buffer, Phosphate Type, pH 7.0, 1 L, 2155353
$69.55

Mfr. Part # 2155353

Product # 701260

Hach Phenylarsine Oxide (PAO) Digital Titrator Cartridge, 0.0451 N, 2142001
$27.50

Mfr. Part # 2142001

Product # 701254

Hach Phenylarsine Oxide (PAO) Titrant, 0.00564N, 500 mL, 2700349
$39.85

Mfr. Part # 2700349

Product # 701853

Hach Hypochlorite (Bleach) Reagent Set (HR), for Digital Titrator, 2687000
$204.00

Mfr. Part # 2687000

Product # 701841

Hach Sodium Thiosulfate (Stabilized) Digital Titrator Cartridge, 2.26 N, 2686901
$33.69

Mfr. Part # 2686901

Product # 701840

Hach Sodium Thiosulfate Solution, 2.12N, 100 mL, 2686832
$59.05

Mfr. Part # 2686832

Product # 701839

Hach Chlorine (Free and Total) Reagent Set, DPD, 10 mL, 2459500
$74.05

Mfr. Part # 2459500

Product # 701617

Hach DPD Oxalate, 25 g, 608424
$124.00

Mfr. Part # 608424

Product # 700906

Hach Sulfuric Acid Standard Solution, 5.25 N, 1 L, 244953
$36.35

Mfr. Part # 244953

Product # 700877

Hach Chlorine (Free and Total) Reagent Set, DPD FEAS, Digital Titrator, 2445300
$110.00

Mfr. Part # 2445300

Product # 701595

Hach Sodium Thiosulfate Standard Solution, 0.1 N, 1 L, 32353
$39.20

Mfr. Part # 32353

Product # 700623

Hach Reagent Set, Chlorine, DPD Free & Total Chlorine, 25 mL Sample, 2440400
$84.55

Mfr. Part # 2440400

Product # 701588