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 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.

    (4 per CS )
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    was $2,021.85 Special Price $1,495.61
  2. Potassium Citrate, Monohydrate, Crystal, Reagent, 500g, 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.

    (6 per CS )
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    was $1,003.50 Special Price $593.85
  3. Potassium Dichromate, Crystal, Reagent, ACS, 125g, 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.

    (6 per CS )
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    was $1,235.00 Special Price $730.85
  4. 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.

    (6 per CS )
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    was $1,981.05 Special Price $1,172.35
  5. Potassium Ferricyanide, Crystal, Reagent, ACS, 125g, 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.

    (6 per CS )
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    was $900.90 Special Price $533.13
  6. 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.

    (6 per CS )
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    was $1,740.95 Special Price $1,030.27
  7. 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.

    (6 per CS )
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    was $3,059.15 Special Price $1,810.35
  8. Potassium Iodide, Crystal, Reagent, ACS, 125g, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, Crystal, Reagent, ACS, is reffered to by the chemical formula KI and is an inorganic compound. Naturally occuring in Kelp, this white salt is one of the most significant iodide compounds. Produced by treating KOH with iodine, this compound has a variety of uses. Used as a component in film photography before the discovery of silver iodide, it is also used in the electrolyte of dye sensitized solar cells. KI is also used as an emergency blockade of radio-iodine, a common form of radiation poisoning. As an ACS grade Reagent, Spectrum Chemical manufactured Potassium Iodide 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 $1,084.55 Special Price $641.81
  9. Potassium Iodide, Crystal, Reagent, ACS, 500g, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, Crystal, Reagent, ACS, is reffered to by the chemical formula KI and is an inorganic compound. Naturally occuring in Kelp, this white salt is one of the most significant iodide compounds. Produced by treating KOH with iodine, this compound has a variety of uses. Used as a component in film photography before the discovery of silver iodide, it is also used in the electrolyte of dye sensitized solar cells. KI is also used as an emergency blockade of radio-iodine, a common form of radiation poisoning. As an ACS grade Reagent, Spectrum Chemical manufactured Potassium Iodide 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 $2,872.65 Special Price $1,699.97
  10. 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.

    (4 per CS )
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    was $4,651.55 Special Price $3,440.87
  11. Potassium Permanganate, Crystal, Reagent, ACS, 125g, CAS# 7722-64-7
    Manufacturer: Spectrum Chemical
    Potassium Permanganate, Crystal, Reagent, ACS, also known as permangante of potash, is an inorganic chemical compound and is a powerful oxidizing agent. It is water soluble and, when dissolved, becomes a pink to purple solution. It is commonly used in the film and television industry to create an old effect on props and as an antiseptic when diluted. It is also used extensively in the water treatment industry and as a reagent for the synthesis of organic compounds. 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 $675.25 Special Price $399.60
  12. Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS, 2.5kg, 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.

    (4 per CS )
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    was $4,220.70 Special Price $3,122.16
  13. Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS, 500g, 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.

    (6 per CS )
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    was $1,704.45 Special Price $1,008.67
  14. Potassium Thiocyanate, Crystal, Reagent, ACS, 500g, 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.

    (6 per CS )
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    was $1,877.35 Special Price $1,110.97
  15. Sodium Borate, Decahydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 1303-96-4
    Manufacturer: Spectrum Chemical
    Sodium Borate, Decahydrate, Crystal, Reagent, ACS is also known simply as Borax and is a mineral that occurs naturally in deposits of the mineral Evaporite. Its uses vary from household products, such as hand soap and water softening agents, to use as a flux in welding and can also be found in small scale gold mining operations as a substitute to mercury. 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.

    (4 per CS )
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    was $1,341.10 Special Price $992.04
  16. Sodium Carbonate, Monohydrate, Granular, Reagent, ACS, 2.5kg, 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.

    (4 per CS )
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    was $1,336.95 Special Price $988.97
  17. Sodium Chloride, Crystal, Reagent, ACS, 2.5kg, CAS# 7647-14-5
    Manufacturer: Spectrum Chemical
    Sodium Chloride, Crystal, Reagent, ACS, or table salt, is a white crystalline solid. In cosmetics and personal care products, Sodium Chloride is used in the formulation of oral hygiene products, shampoos, fragrance, skin, hair, nail, cleansing, suntan, makeup and bath products. This grade is specifically used in thickener applications. 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.

    (4 per CS )
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    was $947.30 Special Price $700.75
  18. Sodium Dichromate, Crystal, Reagent, 2.5kg, CAS# 7789-12-0
    Manufacturer: Spectrum Chemical
    Sodium Dichromate, Crystal, Reagent, also known as chromic acid disodium salt, is considered to be very similar to potassium dichromate in terms of reactivity and appearance. Dichromate and chromate salts are oxidizing agents. For the tanning of leather, sodium dichromate is first reduced with sulfur dioxide. 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.

    (4 per CS )
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    was $4,994.70 Special Price $3,694.71
  19. Sodium Dichromate, Crystal, Reagent, 500g, CAS# 7789-12-0
    Manufacturer: Spectrum Chemical
    Sodium Dichromate, Crystal, Reagent, also known as chromic acid disodium salt, is considered to be very similar to potassium dichromate in terms of reactivity and appearance. Dichromate and chromate salts are oxidizing agents. For the tanning of leather, sodium dichromate is first reduced with sulfur dioxide. 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 $1,888.50 Special Price $1,117.57
  20. Sodium Nitrate, Crystal, Reagent, ACS, 2.5kg, CAS# 7631-99-4
    Manufacturer: Spectrum Chemical
    Sodium Nitrate, Crystal, Reagent, ACS, is a white solid that is particularly soluble in water and in used in the production of fertilizers, gunpowder, glass, pottery enamels, solid rocket propellant and others. It is also notably used in the production of food as a food additive. As an ACS grade Reagent, Spectrum Chemical manufactured sodium nitrate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (4 per CS )
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    was $1,836.85 Special Price $1,358.76
  21. Sodium Nitrate, Crystal, Reagent, ACS, 500g, CAS# 7631-99-4
    Manufacturer: Spectrum Chemical
    Sodium Nitrate, Crystal, Reagent, ACS, is a white solid that is particularly soluble in water and in used in the production of fertilizers, gunpowder, glass, pottery enamels, solid rocket propellant and others. It is also notably used in the production of food as a food additive. As an ACS grade Reagent, Spectrum Chemical manufactured sodium nitrate 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 $826.40 Special Price $489.05
  22. Sodium Nitrite, Crystal, Reagent, ACS, 500g, 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.

    (6 per CS )
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    was $1,108.00 Special Price $655.69
  23. Sodium Phosphate, Monobasic, Monohydrate, Crystal, Reagent, ACS, 500g, CAS# 10049-21-5
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Monobasic, Monohydrate, Crystal, 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. It is used commercially in powered products as an anti-caking agent for those qualities. In a watered solution it is basic, with a pH value between 8.0 and 11.0. 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 $1,180.40 Special Price $698.53
  24. Sodium Phosphate, Dibasic, Heptahydrate, Crystal, Reagent, ACS, 500g, CAS# 7782-85-6
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Dibasic, Heptahydrate, Crystal, Reagent, ACS is one of the sodium salts derived from phosphoric acid. It is highly hygroscopic and water soluble. It is used commercially in powered product as an anti-caking agent. In aqueous solution it is basic, with a pH value between 8.0 and 11.0. 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 $798.20 Special Price $472.36
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