Lab Procurement Services provides a wide range of grades of salts to meet the requirements of multiple lab and production applications. Please see our specific sections for ACS, High-Purity, and USP-NF-FCC grade products. For other types, including lab and technical grades, please see below, or contact us for assistance. 

Please see our pH Buffers and General Supplies for other essential lab products.

When ordering a salt, check the exact chemical form as well as the name: anhydrous, monohydrate, heptahydrate and other hydrates have different formula weights, so a recipe written for one form needs a recalculation for another. Match the grade to the job, for example ACS or reagent grade for analytical work, USP, NF or FCC for pharmaceutical or food applications, and technical grade for general or industrial use. Note the container (amber glass or poly bottle) for light- or moisture-sensitive salts. Review the SDS before ordering toxic or oxidizing salts such as sodium azide or chromium trioxide.

Salts: common questions

What is a chemical salt?

In chemistry, a salt is an ionic compound made of positively charged ions (cations) and negatively charged ions (anions), such as sodium chloride, potassium iodide or copper sulfate. Salts form when an acid reacts with a base, among other reactions. In the lab they are used to make buffers, standards, culture media and reagent solutions, and as starting materials for synthesis.

What is the difference between anhydrous and hydrated salts?

An anhydrous salt contains no water of crystallization. A hydrated salt, such as copper sulfate pentahydrate or sodium phosphate dibasic heptahydrate, has a fixed number of water molecules built into each formula unit. The water adds to the formula weight, so you need more grams of the hydrate to get the same number of moles. Use the formula weight on the label when preparing solutions.

What do ACS, USP, NF and FCC grades mean?

ACS grade meets the purity specifications of the American Chemical Society's Reagent Chemicals and is commonly used for analytical work. USP and NF grades meet the United States Pharmacopeia and National Formulary standards for pharmaceutical use, and FCC grade meets the Food Chemicals Codex for food use. Technical grade has no such specification and suits general or industrial work where high purity is not required.

Who can buy chemicals such as sodium nitrate from LPS?

Chemicals can be ordered online, but they ship only to business addresses, and a company name is required at checkout. Volume and quote pricing for larger quantities is available through the Contact Us page. Check the SDS and any storage or handling requirements before ordering, so the receiving area is ready for the material.

Salts

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  1. Potassium Dichromate, Crystal, Reagent Special, ACS, 500g, CAS# 7778-50-9
    Manufacturer: Spectrum Chemical
    Potassium Dichromate, Crystal, Reagent Special, ACS is an inorganic chemical reagent that is most often used as an oxidizing agent in industrial applications. It is known to be chronically detrimental to health. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA )
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    was $853.60 Special Price $505.15
  2. Potassium Persulfate, Crystal, Reagent, 500g, CAS# 7727-21-1
    Manufacturer: Spectrum Chemical
    Potassium Persulfate, Crystal, Reagent, also known as potassium peroxydisulfate, is a strong oxidant used to initiate polymerizations. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA)
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    was $249.20 Special Price $147.47
  3. Sodium Molybdate, Dihydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 10102-40-6
    Manufacturer: Spectrum Chemical
    Sodium Molybdate, Dihydrate, Crystal, Reagent, ACS is a white crystalline solid that is used in agriculture as a fertilizer and in water treatment as well as in industry as a corrosion inhibitor. As an ACS grade Reagent, Spectrum Chemical manufactured compound is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

    (1 per EA)
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    $2,236.80
  4. Sodium Nitrite, Crystal, Reagent, ACS, 12kg, CAS# 7632-00-0
    Manufacturer: Spectrum Chemical
    Sodium Nitrite, Crystal, Reagent, ACS is a white to yellowish inorganic compound that is soluble in water and is hygroscopic. It is commonly used as a reagent in the industrial production of organonitrogen compounds and is an effective corrosion inhibitor. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA )
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    was $1,677.60 Special Price $1,240.96
  5. Monobasic Potassium Phosphate, Crystal, NF, 12kg, CAS# 7778-77-0
    Manufacturer: Spectrum Chemical
    Monobasic Potassium Phosphate, Crystal, NF is used as a buffering agent. All Spectrum Chemical NF grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    was $1,575.70 Special Price $1,165.59
  6. Tribasic Calcium Phosphate, Powder, NF, 100lb, CAS# 12167-74-7
    Manufacturer: Spectrum Chemical
    Tribasic Calcium Phosphate, Powder, NF. All Spectrum Chemical NF grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    $5,549.45
  7. Sodium Carbonate, Monohydrate, Granular, Reagent, ACS, 500g, CAS# 5968-11-6
    Manufacturer: Spectrum Chemical
    Sodium Carbonate, Monohydrate, Granular, Reagent, ACS is also known soda ash or washing soda. It is soluble in water and also used as a primary standard for acid-base titrations because it is solid and air-stable, making it easy to weigh accurately. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $638.85 Special Price $378.05
  8. Silver Iodide, Powder, Reagent, 100g, CAS# 7783-96-2
    Manufacturer: Spectrum Chemical
    Silver Iodide, Powder, Reagent, also known as Silver(I) iodide, is an inorganic compound used in silver-based photography. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA )
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    $1,219.90
  9. Titanium Dioxide, FCC, 500g, CAS# 13463-67-7
    Manufacturer: Spectrum Chemical
    Titanium Dioxide, FCC is used as a food coloring and has an E-number, E171. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA )
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    was $156.65 Special Price $115.87
  10. Potassium Phosphate Dibasic, Anhydrous, Powder, Reagent, ACS, 500g, CAS# 7758-11-4
    Manufacturer: Spectrum Chemical
    Potassium Phosphate Dibasic, Anhydrous, Powder, Reagent, ACS is a soluble salt that is commonly used as a buffering agent. As an ACS grade Reagent, Spectrum Chemical manufactured potassium phosphate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (6 per CS )
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    was $1,867.90 Special Price $1,105.39
  11. Sodium Bromide, Granular, Reagent, ACS, 2.5kg, CAS# 7647-15-6
    Manufacturer: Spectrum Chemical
    Sodium Bromide, Granular, Reagent, ACS is used in photography in the preparation of silver bromide emulsion on photographic plates or films. As a Reagent ACS grade reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (4 per CS )
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    was $2,776.90 Special Price $2,054.15
  12. Sodium Phosphate, Dibasic, Anhydrous, Reagent, ACS, 2.5kg, CAS# 7558-79-4
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Dibasic, Anhydrous, Reagent, ACS is one of the sodium salts derived from phosphoric acid. Highly hygroscopic and water soluble it comes in the form of a white powder. Used commercially in powered product as an anti-caking agent for those qualities. In a aqueous solution it is basic, with a pH value between 8.0 and 11.0. As an ACS grade Reagent, Spectrum Chemical manufactured Sodium Phosphate, Dibasic, Anhydrous, Reagent ACS is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and purity.

    (4 per CS )
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    was $2,582.00 Special Price $1,909.97
  13. Sodium Phosphate, Dibasic, Heptahydrate, Granular, Reagent, ACS, 500g, CAS# 7782-85-6
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Dibasic, Heptahydrate, Granular, Reagent, ACS is used in foods and water treatment. In foods, it is used to adjust pH. Its presence prevents coagulation in the preparation of condensed milk. Similarly, it is used as an anti-caking additive in powdered products. In water treatment, It retards calcium scale formation. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $821.15 Special Price $485.95
  14. Cupric Oxide, Black, Powdered, Reagent, ACS, 500g, CAS# 1317-38-0
    Manufacturer: Spectrum Chemical
    Cupric Oxide, Black, Powdered, Reagent, ACS is also referred to a s copper oxide and has a mineral form known as tenorite. It is used as a pigment, to obtain blue, green and red. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $2,768.75 Special Price $1,638.49
  15. Sodium Hydrosulfite, Powder, Technical, 12kg, CAS# 7775-14-6
    Manufacturer: Spectrum Chemical
    Sodium Hydrosulfite, Powder, Technical, is also referred to as sodium dithionite and is a white solid and has a slight sulfurous odor. Like most salts it is soluble in water and is used in industry as a reducing agent. In agricultural chemistry, it is used to determine the iron content of soil and to lower the redox potential in physiology experiments.

    (CAS# 7775-14-6, Molecular Formula: Na2S2O4) Sodium Hydrosulfite, Powder, Technical (1 per EA )

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    was $934.95 Special Price $691.60
  16. Sodium Potassium Tartrate, Tetrahydrate, Granular, FCC, 50kg, CAS# 6381-59-5
    Manufacturer: Spectrum Chemical
    Sodium Potassium Tartrate, Tetrahydrate, Granular, FCC is used as a sequestrant and stabilizer. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA )
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    $2,488.00
  17. Magnesium Citrate, Anhydrous, USPqueous Solution, 125mL, CAS# 144-23-0
    Manufacturer: Spectrum Chemical
    Magnesium Citrate, Anhydrous, USP is often used as a saline laxative to clean stool from the intestines before surgery or certain bowel procedures. All Spectrum Chemical USP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA )
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    $3,114.07
  18. Sodium Tartrate, Dihydrate, Crystal, Reagent, ACS, 500g, CAS# 6106-24-7
    Manufacturer: Spectrum Chemical
    Sodium Tartrate, Dihydrate, Crystal, Reagent, ACS has a crystal structure that is able to capture a very precise amount of water and is used in the Karl Fischer moisture determination titration technique. As an ACS grade reagent, Spectrum Chemical manufactured compound is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

    (6 per CS )
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    was $1,672.10 Special Price $989.52
  19. Ferrous Chloride, Crystal, Technical, 500g, CAS# 13478-10-9
    Manufacturer: Spectrum Chemical
    Ferrous Chloride, Crystal, Technical is used in the laboratory synthesis of iron complexes and as a reducing flocculating agent in wastewater treatment, especially for wastes containing chromate. Technical grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

    (6 per CS )
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    was $1,711.25 Special Price $1,012.68
  20. Potassium Bromide, Crystal, IR Grade, 25g, CAS# 7758-02-3
    Manufacturer: Spectrum Chemical
    Potassium Bromide, Crystal, IR Grade is used widely as infrared optical windows and components for general spectroscopy because it is transparent from the near ultraviolet to long-wave infrared wavelengths and has no significant optical absorption lines in its high transmission region.

    (6 per CS )
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    was $861.65 Special Price $637.37
  21. Aluminum Ammonium Sulfate, Dodecahydrate, Crystal, Reagent, ACS, 500g, CAS# 7784-26-1
    Manufacturer: Spectrum Chemical
    Aluminum Ammonium Sulfate, Dodecahydrate, Crystal, Reagent, ACS, also known as Ammonium alum, has many niche applications, including use in water purification, in porcelain cements, and in some vegetable glues. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $1,620.75 Special Price $959.13
  22. Aluminum Nitrate, Nonahydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 7784-27-2
    Manufacturer: Spectrum Chemical
    Aluminum Nitrate, Nonahydrate, Crystal, Reagent, ACS is a strong oxidizing agent. It is a salt of aluminum and nitric acid existing normally as a crystalline hydrate. Aluminum nitrate has many different uses including extracting uranium, petroleum refining, as a nitrating agent, and in tanning leather. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (4 per CS )
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    was $2,159.60 Special Price $1,597.51
  23. Ammonium Oxalate, Monohydrate, Crystal, Reagent, ACS, 500g, CAS# 6009-70-7
    Manufacturer: Spectrum Chemical
    Ammonium Oxalate, Monohydrate, Crystal, Reagent, ACS is odorless, colorless and non-volatile in most conditions. It is found in guano and can be a constituent of certain types of kidney stones. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $1,527.50 Special Price $903.95
  24. Ammonium Peroxydisulfate, Crystal, Reagent, ACS, 500g, CAS# 7727-54-0
    Manufacturer: Spectrum Chemical
    Ammonium Peroxydisulfate, Crystal, Reagent, ACS is a salt that is highly water soluble oxidizing agent. It is often used for its oxidizing properties to etch copper on circuit boards and is also used to extract copper from chalcopyrite under high pressure. As an ACS grade Reagent, Spectrum Chemical manufactured compound is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

    (6 per CS )
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    was $786.10 Special Price $465.20
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