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Lab Chemicals & Reagents


Water quality chemicals, reagents, and standards designed for repeatable & accurate measurements


Explore a range of reagents, chemicals, and standards that ensure quality compliance and repeatable tests in your water testing laboratory. These ensure repeatable, reliable analysis for municipal regulatory requirements.

Core & Main Ascorbic Acid, ACS Grade, 500 g
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Core & Main Ascorbic Acid, ACS Grade, 500 g
$129.90

Mfr. Part # AA1330-K

Product # 706941

Core & Main Ammonium Persulfate, ACS Grade, 500 g
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Core & Main Ammonium Persulfate, ACS Grade, 500 g
$98.55

Mfr. Part # AP1005-K

Product # 706939

Core & Main Ammonium Persulfate, ACS Grade, 100 g
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Core & Main Ammonium Persulfate, ACS Grade, 100 g
$44.10

Mfr. Part # AP1005-J

Product # 706938

Core & Main Ammonium Molybdate, Tetrahydra, 500 g
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Core & Main Ammonium Molybdate, Tetrahydra, 500 g
$335.75

Mfr. Part # AM1005-K

Product # 706937

Core & Main Ammonium Molybdate, Tetrahydra, 100 g
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Core & Main Ammonium Molybdate, Tetrahydra, 100 g
$79.55

Mfr. Part # AM1005-J

Product # 706936

Core & Main Ammonium Chloride, ACS Grade, 500 g
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Core & Main Ammonium Chloride, ACS Grade, 500 g
$64.60

Mfr. Part # AC8235-K

Product # 706929

Core & Main Ammonium Molybdate, 4% w/v, 500 mL
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Core & Main Ammonium Molybdate, 4% w/v, 500 mL
$54.95

Mfr. Part # AM1965-P

Product # 706935

Core & Main Ammonium Chloride, ACS Grade, 100 g
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Core & Main Ammonium Chloride, ACS Grade, 100 g
$24.75

Mfr. Part # AC8235-J

Product # 706928

Core & Main Sulfamic Acid, ACS Grade, 500 g
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Core & Main Sulfamic Acid, ACS Grade, 500 g
$109.95

Mfr. Part # SA1080-K

Product # 707280

Core & Main Sulfamic Acid, ACS Grade, 100 g
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Core & Main Sulfamic Acid, ACS Grade, 100 g
$49.50

Mfr. Part # SA1080-J

Product # 707279

Core & Main Sodium Phosphate, Dibasic, ACS Grade, 500 g
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Core & Main Sodium Phosphate, Dibasic, ACS Grade, 500 g
$100.45

Mfr. Part # SP3900-K

Product # 707250

Core & Main Sodium Phosphate, Dibasic, ACS Grade, 100 g
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Core & Main Sodium Phosphate, Dibasic, ACS Grade, 100 g
$31.65

Mfr. Part # SP3900-J

Product # 707249

Core & Main Sodium Phosphate, Dibasic, 100 g
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Core & Main Sodium Phosphate, Dibasic, 100 g
$13.95

Mfr. Part # SP1010-J

Product # 707248

Core & Main Sodium Hydroxide, ACS Grade, 500 g
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Core & Main Sodium Hydroxide, ACS Grade, 500 g
$87.45

Mfr. Part # SH6000-K

Product # 707245

Core & Main Sodium Hydroxide, ACS Grade, 2.5 kg
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Core & Main Sodium Hydroxide, ACS Grade, 2.5 kg
$219.25

Mfr. Part # SH6000-M

Product # 707246

Core & Main Sodium Chloride, 0.1N, 500 mL
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Core & Main Sodium Chloride, 0.1N, 500 mL
$33.20

Mfr. Part # SC3790-P

Product # 707221

Core & Main Sodium Chloride, 0.141N, 500 mL
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Core & Main Sodium Chloride, 0.141N, 500 mL
$38.10

Mfr. Part # SC3800-P

Product # 707223

Core & Main Sodium Chloride, 0.1N, 1 L
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Core & Main Sodium Chloride, 0.1N, 1 L
$77.15

Mfr. Part # SC3790-Q

Product # 707222

Core & Main Sodium Chloride, 0.141N, 1 L
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Core & Main Sodium Chloride, 0.141N, 1 L
$73.65

Mfr. Part # SC3800-Q

Product # 707224

Core & Main Sodium Chloride, 0.0141N, 500 mL
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Core & Main Sodium Chloride, 0.0141N, 500 mL
$33.15

Mfr. Part # SC3760-P

Product # 707219

Core & Main Sodium Chloride, 0.0141N, 1 L
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Core & Main Sodium Chloride, 0.0141N, 1 L
$44.30

Mfr. Part # SC3760-Q

Product # 707220

Core & Main Sodium Carbonate, ACS Grade, 500 g
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Core & Main Sodium Carbonate, ACS Grade, 500 g
$101.50

Mfr. Part # SC1000-K

Product # 707218

Core & Main Sodium Carbonate, ACS Grade, 100 g
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Core & Main Sodium Carbonate, ACS Grade, 100 g
$47.73

Mfr. Part # SC1000-J

Product # 707217

Core & Main Sodium Bicarbonate, ACS Grade, 500 g
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Core & Main Sodium Bicarbonate, ACS Grade, 500 g
$73.30

Mfr. Part # SB6000-K

Product # 707215

Core & Main Sodium Acetate, Trihydrate, ACS Grade, 500 g
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Core & Main Sodium Acetate, Trihydrate, ACS Grade, 500 g
$106.35

Mfr. Part # SA1100-K

Product # 707212

Core & Main Sodium Bicarbonate, ACS Grade, 100 g
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Core & Main Sodium Bicarbonate, ACS Grade, 100 g
$45.80

Mfr. Part # SB6000-J

Product # 707214

Core & Main Silver Nitrate, ACS Grade, 100 g
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Core & Main Silver Nitrate, ACS Grade, 100 g
$439.00

Mfr. Part # SN1005-J

Product # 707210

Core & Main Sodium Acetate, Trihydrate, ACS Grade, 100 g
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Core & Main Sodium Acetate, Trihydrate, ACS Grade, 100 g
$46.45

Mfr. Part # SA1100-J

Product # 707211

Core & Main Potassium Phosphate, Monobasic, ACS Grade, 500 g
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Core & Main Potassium Phosphate, Monobasic, ACS Grade, 500 g
$66.40

Mfr. Part # PP1080-K

Product # 707198

Core & Main Potassium Phosphate, Monobasic, ACS Grade, 100 g
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Core & Main Potassium Phosphate, Monobasic, ACS Grade, 100 g
$34.45

Mfr. Part # PP1080-J

Product # 707197

Core & Main Potassium Phosphate Dibasic, 500 g
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Core & Main Potassium Phosphate Dibasic, 500 g
$173.95

Mfr. Part # PP1085-K

Product # 707196

Core & Main Potassium Phosphate Dibasic, 100 g
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Core & Main Potassium Phosphate Dibasic, 100 g
$92.95

Mfr. Part # PP1085-J

Product # 707195

Core & Main Potassium Hydroxide, ACS Grade, 500 g
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Core & Main Potassium Hydroxide, ACS Grade, 500 g
$85.60

Mfr. Part # PH1003-K

Product # 707181

Core & Main Potassium Hydroxide ACS Grade, 2.5 kg
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Core & Main Potassium Hydroxide ACS Grade, 2.5 kg
$194.75

Mfr. Part # PH1003-M

Product # 707182

Core & Main Potassium Chromate Indicator, 5% w/v, 500 mL
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Core & Main Potassium Chromate Indicator, 5% w/v, 500 mL
$19.00

Mfr. Part # PC8025-P

Product # 707175

Core & Main Potassium Chromate Indicator, 5% w/v, 1 L
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Core & Main Potassium Chromate Indicator, 5% w/v, 1 L
$25.95

Mfr. Part # PC8025-Q

Product # 707176

Core & Main Potassium Chloride, 500 g
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Core & Main Potassium Chloride, 500 g
$77.25

Mfr. Part # PC1000-K

Product # 707171

Core & Main Potassium Chloride, 100 g
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Core & Main Potassium Chloride, 100 g
$34.45

Mfr. Part # PC1000-J

Product # 707170

Core & Main Phenol Red Indicator Solution, 0.04% w/v, 500 mL
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Core & Main Phenol Red Indicator Solution, 0.04% w/v, 500 mL
$18.25

Mfr. Part # PH2510-P

Product # 707153

Core & Main Phenol Red Indicator Solution, 0.04% w/v, 1 L
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Core & Main Phenol Red Indicator Solution, 0.04% w/v, 1 L
$32.73

Mfr. Part # PH2510-Q

Product # 707154

Core & Main Methyl Purple Indicator Solution, 500 mL
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Core & Main Methyl Purple Indicator Solution, 500 mL
$18.25

Mfr. Part # MP3595-P

Product # 707101

Core & Main Methyl Purple Indicator Solution, 120 mL
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Core & Main Methyl Purple Indicator Solution, 120 mL
$16.35

Mfr. Part # MP3595-C

Product # 707100

Core & Main Methyl Purple Indicator Solution, 1 L
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Core & Main Methyl Purple Indicator Solution, 1 L
$28.15

Mfr. Part # MP3595-Q

Product # 707102

Core & Main Mercuric Nitrate Titrant, 0.141N, 500 mL
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Core & Main Mercuric Nitrate Titrant, 0.141N, 500 mL
$48.45

Mfr. Part # MN9340-P

Product # 707095

Core & Main Mercuric Nitrate Titrant, 0.141N, 1 L
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Core & Main Mercuric Nitrate Titrant, 0.141N, 1 L
$80.40

Mfr. Part # MN9340-Q

Product # 707096

Core & Main Mercuric Nitrate Titrant, 0.0141N, 1 L
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Core & Main Mercuric Nitrate Titrant, 0.0141N, 1 L
$31.35

Mfr. Part # MN9141-Q

Product # 707094

Core & Main Mercuric Nitrate Titrant, 0.0141N, 500 mL
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Core & Main Mercuric Nitrate Titrant, 0.0141N, 500 mL
$23.90

Mfr. Part # MN9141-P

Product # 707093

Core & Main Total Alkalinity Indicator, 120 mL
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Core & Main Total Alkalinity Indicator, 120 mL
$14.50

Mfr. Part # AI6925-C

Product # 706895