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 Bromide, Crystal, IR Grade, 100g, 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.

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    was $533.55 Special Price $394.68
  2. Potassium Chlorate, Crystal, Reagent, ACS, 2.5kg, CAS# 3811-04-9
    Manufacturer: Spectrum Chemical
    Potassium Chlorate, Crystal, Reagent, ACS has been used as an oxidizing agent, a disinfectant, in oxygen preparation, and in the detection of aluminum. This simple ionic salt can yield free chlorate ions in solution which is thought to be the species responsible for this versatile activity. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

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    was $977.80 Special Price $723.31
  3. Potassium Chloride, Crystal, Reagent, ACS, 2.5kg, CAS# 7447-40-7
    Manufacturer: Spectrum Chemical
    Potassium Chloride, Crystal, Reagent, ACS occurs naturally as the mineral sylvite and is a metal halide salt. In its pure form it is odorless and is a colorless, virtreous crystal in appearance. It is used in the medicinally to treat hypokalemia and in the agricultural industry as part of a fertilizer known as muriate of potash, increasing plants' potassium intake. As an ACS grade Reagent, Spectrum Chemical manufactured potassium chloride is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

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    was $425.45 Special Price $314.71
  4. Potassium Citrate, Monohydrate, Crystal, Reagent, 12kg, CAS# 6100-05-6
    Manufacturer: Spectrum Chemical
    Potassium Citrate, Monohydrate, Crystal, Reagent is a white, crystalline powder that is hygroscopic. It has no odor and has a slightly salty taste. It is a potassium salt of citric acid and is most frequently used as a buffering agent, sequestrant and acidity regulator. 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.

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    was $1,238.25 Special Price $915.96
  5. Potassium Citrate, Monohydrate, Crystal, Reagent, 2.5kg, CAS# 6100-05-6
    Manufacturer: Spectrum Chemical
    Potassium Citrate, Monohydrate, Crystal, Reagent is a white, crystalline powder that is hygroscopic. It has no odor and has a slightly salty taste. It is a potassium salt of citric acid and is most frequently used as a buffering agent, sequestrant and acidity regulator. 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.

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    was $592.90 Special Price $438.59
  6. Potassium Dichromate, Crystal, Reagent, ACS, 12kg, CAS# 7778-50-9
    Manufacturer: Spectrum Chemical
    Potassium Dichromate, Crystal, Reagent, 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.

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    was $3,704.75 Special Price $2,740.49
  7. Potassium Dichromate, Crystal, Reagent, ACS, 500g, CAS# 7778-50-9
    Manufacturer: Spectrum Chemical
    Potassium Dichromate, Crystal, Reagent, 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.

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    was $463.85 Special Price $274.49
  8. Potassium Ferricyanide, Crystal, Reagent, ACS, 12kg, CAS# 13746-66-2
    Manufacturer: Spectrum Chemical
    Potassium Ferricyanide, Crystal, Reagent, ACS is a chemical compound and a bright red salt. It is soluble in water and appears as a yellow-green fluorescence. Potassium ferricyanide is created by passing chlorine through a solution of potassium ferrocyanide. 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.

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    was $3,822.20 Special Price $2,827.39
  9. Potassium Ferricyanide, Crystal, Reagent, ACS, 500g, CAS# 13746-66-2
    Manufacturer: Spectrum Chemical
    Potassium Ferricyanide, Crystal, Reagent, ACS is a chemical compound and a bright red salt. It is soluble in water and appears as a yellow-green fluorescence. Potassium ferricyanide is created by passing chlorine through a solution of potassium ferrocyanide. 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.

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    was $314.65 Special Price $186.20
  10. Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS, 500g, CAS# 14459-95-1
    Manufacturer: Spectrum Chemical
    Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS is an inorganic compound that is a salt with a light yellow tint. Mainly used as an anti-caking agent in both road and table salt. It has several other niche uses and within the laboratory to determine potassium permanganate concentration levels. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

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    was $417.05 Special Price $246.80
  11. Potassium Fluoride, Dihydrate, Crystal, Reagent, 125g, CAS# 13455-21-5
    Manufacturer: Spectrum Chemical
    Potassium Fluoride, Dihydrate, Crystal, Reagent is a source of fluoride, it is the preferred reagent in the conversion process of chlorocarbons into fluorocarbons. Its reagent grade means this is the highest quality commercially available for this chemical and that the American Chemical Society has not officially set any specifications for this material.

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    was $213.90 Special Price $126.59
  12. Potassium Fluoride, Dihydrate, Crystal, Reagent, 2.5kg, CAS# 13455-21-5
    Manufacturer: Spectrum Chemical
    Potassium Fluoride, Dihydrate, Crystal, Reagent is a source of fluoride, it is the preferred reagent in the conversion process of chlorocarbons into fluorocarbons. Its reagent grade means this is the highest quality commercially available for this chemical and that the American Chemical Society has not officially set any specifications for this material.

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    was $2,166.10 Special Price $1,602.32
  13. Potassium Fluoride, Dihydrate, Crystal, Reagent, 500g, CAS# 13455-21-5
    Manufacturer: Spectrum Chemical
    Potassium Fluoride, Dihydrate, Crystal, Reagent is a source of fluoride, it is the preferred reagent in the conversion process of chlorocarbons into fluorocarbons. Its reagent grade means this is the highest quality commercially available for this chemical and that the American Chemical Society has not officially set any specifications for this material.

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    was $551.55 Special Price $326.40
  14. Potassium Metabisulfite, Crystal, Reagent, 2.5kg, CAS# 16731-55-8
    Manufacturer: Spectrum Chemical
    Potassium Metabisulfite, Crystal, Reagent is also known as potassium pyrosulfite and is primarily used as a chemical sterilant or antioxidant. It is chemically similar to sodium metabisulfite and considered to be a disulfite. 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.

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    was $684.55 Special Price $506.37
  15. Potassium Nitrate, Crystal, Reagent, ACS, 12kg, CAS# 7757-79-1
    Manufacturer: Spectrum Chemical
    Potassium Nitrate, Crystal, Reagent, ACS occurs naturally as the mineral niter. As an ionic salt and natural source of nitrogen, this chemical compound is highly used as a fertilizer and is one of the main components in gunpowder. It is also used in other fields such as in pharmacology, where it is added to toothpaste to help treat sensitive teeth. It can also be used as an electrolyte, as a tree stump removal product and in some culture as a thickening agent in food preparation. As an ACS grade Reagent, Spectrum Chemical manufactured potassium nitrate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

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    was $1,418.15 Special Price $1,049.04
  16. Potassium Nitrite, Crystal, Technical, 12kg, CAS# 7758-09-0
    Manufacturer: Spectrum Chemical
    Potassium Nitrite, Crystal, Technical, an ionic salt, is an oxidizer that accelerates the combustion of other materials. Technical grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

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    was $2,279.55 Special Price $1,686.24
  17. Potassium Oxalate, Monohydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 6487-48-5
    Manufacturer: Spectrum Chemical
    Potassium Oxalate, Monohydrate, Crystal, Reagent, ACS is useful as reducing agents for photography, bleaching, and rust removal. 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.

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    was $1,210.10 Special Price $895.15
  18. Potassium Phosphate Monobasic, Crystal, Reagent, ACS, 12kg, CAS# 7778-77-0
    Manufacturer: Spectrum Chemical
    Potassium Phosphate Monobasic, Crystal, 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.

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    was $1,781.20 Special Price $1,317.60
  19. Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS, 12kg, CAS# 6381-59-5
    Manufacturer: Spectrum Chemical
    Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS is a double salt and is deliquescent so the material deteriorates if stored in damp conditions. It has been used medicinally as a laxative. It has also been used in the process of silvering mirrors. It is an ingredient of Fehling's solution and Nylander's test, formerly used in the determination of reducing sugars in solutions. In organic synthesis, it is used in aqueous workups to break up emulsions, particularly for reactions in which an aluminum-based hydride reagent was used. 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.

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    was $2,496.00 Special Price $1,846.36
  20. Potassium Sulfate, Crystal, Reagent, ACS, 12kg, CAS# 7778-80-5
    Manufacturer: Spectrum Chemical
    Potassium Sulfate, Crystal, Reagent, ACS is also known as sulphate of potash. It is a white crystalline salt that is non-flammable and soluble in water. It is most often used in fertilizers which provides both sulfur and potassium. 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.

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    was $1,721.50 Special Price $1,273.44
  21. Potassium Sulfate, Crystal, Reagent, ACS, 2.5kg, CAS# 7778-80-5
    Manufacturer: Spectrum Chemical
    Potassium Sulfate, Crystal, Reagent, ACS is also known as sulphate of potash. It is a white crystalline salt that is non-flammable and soluble in water. It is most often used in fertilizers which provides both sulfur and potassium. 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.

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    was $580.70 Special Price $429.56
  22. Potassium Thiocyanate, Crystal, Reagent, ACS, 12kg, CAS# 333-20-0
    Manufacturer: Spectrum Chemical
    Potassium Thiocyanate, Crystal, Reagent, ACS, one of the pseudohalides, is an important salt of the thiocyanate anion. Often used in chemical synthesis, it can also be used in theatrical special effects to create a relatively realistic blood effect. As an ACS grade Reagent, Spectrum Chemical manufactured potassium thiocyanate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

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    was $2,288.10 Special Price $1,692.57
  23. Sodium Bisulfate, Monohydrate, Crystal, Reagent, 500g, CAS# 10034-88-5
    Manufacturer: Spectrum Chemical
    Sodium Bisulfate, Monohydrate, Crystal, Reagent, also known as sodium hydrogen sulfate, is an acid salt created by partial neutralization of sulfuric acid. Sodium bisulfate is used primarily to lower pH and, in jewelry making, sodium bisulfate is the primary ingredient used in many pickling solutions to remove the oxidation layer from surfaces, which occurs after heating. 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.

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    was $350.95 Special Price $259.60
  24. Sodium Borohydride, Crystalline Powder, Reagent, ACS, 500g, CAS# 16940-66-2
    Manufacturer: Spectrum Chemical
    Sodium Borohydride, Crystalline Powder, Reagent, ACS is an inorganic compound that is white in color and usually found as a powder. It is a reducing agent with versatility and is used as a synthetic reagent in the laboratory. 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.

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    $733.35
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