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. Calcium Carbonate, Low in Alkalis, Powder, ACS, 45kg, CAS# 471-34-1
    Manufacturer: Spectrum Chemical
    Calcium Carbonate, Low in Alkalis, Powder, ACS is a naturally found common substance in rocks and it is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. Calcium carbonate causes a unique reaction with acids which upon contact with an acid produces carbon dioxide regardless of acid strength. 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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    $2,795.80
  2. Sodium Perchlorate, Anhydrous, Reagent, ACS, 20kg, CAS# 7601-89-0
    Manufacturer: Spectrum Chemical
    Sodium Perchlorate, Anhydrous, Reagent, ACS (1 per EA )
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    $4,155.95
  3. Magnesium Oxide, Light Powder, USP, 45kg, CAS# 1309-48-4
    Manufacturer: Spectrum Chemical
    Magnesium Oxide, Light Powder, USP. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    $4,180.02
  4. Ammonium Sulfate, Granular, Purified, 50kg, CAS# 7783-20-2
    Manufacturer: Spectrum Chemical
    Ammonium Sulfate, Granular, Purified is an inorganic salt that is very soluble in water. Most often used as a soil fertilizer to release minute amounts of acid and contribute to the essential nitrogen. It is also used in biochemistry as a precipitant to purify protein. The Purified Grade describes chemicals of good quality where there are no official standards and is normally limited to inorganic chemicals.

    (1 per EA )
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    $614.50
  5. Sodium Citrate Dihydrate ACS - ACS, 2.5Kg, CAS#1545801
    Manufacturer: Dawn Scientific
    Sodium Citrate Dihydrate ACS - ACS, 2.5Kg, CAS#1545801 (1 per EA )
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    was $139.62 Special Price $136.13
  6. Potassium Phosphate, Monobasic, ACS Grade, 12 Kilograms CAS# 7778-77-0
    Manufacturer: Research Products International
    Mol. Wt:136.1 Common Name: Formula: KH2PO4 Dimensions: 10.00 x 11.25 x 10.00, Weight: 28.12, Cas#: 7778-77-0 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $1,188.10
  7. Ammonium Oxalate, Monohydrate, Purified, 50kg, CAS# 6009-70-7
    Manufacturer: Spectrum Chemical
    Ammonium Oxalate, Monohydrate, Purified is an odorless, colorless and non-volatile solid. It is found in guano and can be a constituent of certain types of kidney stones.

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    $2,041.90
  8. Bismuth Citrate, Powder, 50kg, CAS# 813-93-4
    Manufacturer: Spectrum Chemical
    Bismuth Citrate, Powder is used as an internal deodorant and treats malodor by deodorizing flatulence and stool odors. It is usually given to people who suffer from fecal incontinence, IBS or who have has ostomy surgery or bariatric surgery. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    $5,198.90
  9. Ferric Subsulfate, Powder, Purified, 45kg, CAS# 1310-45-8
    Manufacturer: Spectrum Chemical
    Ferric Subsulfate, Powder, Purified is a yellow rhombic crystalline salt that is water soluble. It is used in industrial waste processing as a coagulant and as a pigment in pickling baths for steel and aluminum.

    (1 per EA )
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    $5,119.20
  10. Rubidium Chloride, High Purity, 5kg, CAS# 7791-11-9
    Manufacturer: Spectrum Chemical
    Rubidium Chloride, High Purity (1 per EA )
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    $28,101.45
  11. Sodium Phosphate Tribasic, Anhydrous, Technical, 45kg, CAS# 7601-54-9
    Manufacturer: Spectrum Chemical
    Sodium Phosphate Tribasic, Anhydrous, Technical or trisodium phosphate, is used as a cleaning agent and is sufficiently alkaline to saponify grease and oils. Technical grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

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    $877.25
  12. Ferric Oxide, Powder, Reagent, 50kg, CAS# 1309-37-1
    Manufacturer: Spectrum Chemical
    Ferric Oxide, Powder, Reagent is an inorganic compound and is one of the main oxides of iron. It is used as a polishing agent (jeweler's rouge), a pigment and a photocatalyst. 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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    $3,177.70
  13. Mercurous Chloride, Powder, Reagent, ACS, 50kg, CAS# 10112-91-1
    Manufacturer: Spectrum Chemical
    Mercurous Chloride, Powder, Reagent, ACS, also known as Mercury(I) chloride, is a component of reference electrodes in electrochemistry. 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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    $24,974.98
  14. Potassium Oxalate, Monohydrate, CP, 100lb, CAS# 6487-48-5
    Manufacturer: Spectrum Chemical
    Potassium Oxalate, Monohydrate, CP, also known simply as oxalate, forms insoluble precipitates with many metal ions, including calcium oxalate. CP or Chemically Pure grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

    (1 per EA )
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    $4,515.80
  15. Sodium Erythorbate, FCC, 125g, CAS# 6381-77-7
    Manufacturer: Spectrum Chemical
    Sodium Erythorbate, FCC is used as an antioxidant preservative. 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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    $123.70
  16. Magnesium Chloride, AnhydrousS# 7786-30-3
    Manufacturer: Spectrum Chemical
    Magnesium Chloride, Anhydrous, is a chemical compound that is highly soluble in water and is a typical ionic halides. It has a wide range of uses, notably the production of magnesium metal, it is also used for dust control, ice control and road stabilization.

    (1 per EA )
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    $1,062.83
  17. Lead Nitrate, Crystal, Reagent, ACS, 50kg, CAS# 10099-74-8
    Manufacturer: Spectrum Chemical
    Lead Nitrate, Crystal, Reagent, ACS is an inorganic compound most often occurring as a white powder or colorless crystal. It is soluble in water and is used in gold cyanidation. 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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    $3,896.83
  18. Potassium Phosphate Dibasic, Anhydrous, Powder, Reagent, ACS, 50kg, 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.

    (1 per EA )
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    $3,002.55
  19. Dibasic Sodium Phosphate, Dried, USP, 25kg, CAS# 7558-79-4
    Manufacturer: Spectrum Chemical
    Dibasic Sodium Phosphate, Dried, USP is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy. Spectrum Chemical USP products, including all USP Sodium Phosphate 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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    $1,970.59
  20. Magnesium Gluconate, Dihydrate, Purified, 100g, CAS# 59625-89-7
    Manufacturer: Spectrum Chemical
    Magnesium Gluconate, Dihydrate, Purified is a compound and the magnesium salt of gluconic acid. It has a high level of bioavailability. The Purified Grade describes chemicals of good quality where there are no official standards and is normally limited to inorganic chemicals.

    (1 per EA )
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    $97.34
  21. Ferric Citrate, Purified, 50kg, CAS# 123581
    Manufacturer: Spectrum Chemical
    Ferric Citrate, Purified is a powder with a green to reddish-brown appearance. It can also be used in water purification, printing and an acidity regulator.

    (1 per EA )
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    $5,119.80
  22. Sodium Selenate, Decahydrate, 12kg, CAS# 10102-23-5
    Manufacturer: Spectrum Chemical
    Sodium Selenate, Decahydrate is used in glass manufacturing to counter the color caused by iron impurities. Purified grades have are used as a micronutrient which prevents a deficiency of copper, manganese and selenium by maintaining the levels of these trace elements in the blood and is used in the prevention of abnormal tissue growth. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    $10,029.40
  23. Aluminum Chloride, Hexahydrate, Crystal, Reagent, 50kg, CAS# 7784-13-6
    Manufacturer: Spectrum Chemical
    Aluminum Chloride, Hexahydrate, Crystal, Reagent, in its pure form is a white and granular solid. Often cited as a Lewis acid this inorganic compound is a good example of a compound that cracks at mild temperature, reversing from a polymer to a monomer. It is often used as a component of antiperspirant in low doses. It can also be used as a catalyst in the ene reaction or as a polymerization in the reactions of hydrocarbons. 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.

    (1 per EA )
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    $2,809.20
  24. Ammonium Chloride, Granular, Reagent, ACS, 45kg, CAS# 12125-02-9
    Manufacturer: Spectrum Chemical
    Ammonium Chloride, Granular, Reagent, ACS is an inorganic compound, that presents itself as a white crystalline salt that is highly soluble in water. It occurs from the reaction of hydrochloric acid and ammonia. It has uses in medicine as an expectorant in cough medicine, in metalwork as a flux in preparing metals to be tin coated as well as in laboratories to produce cooling baths at low temperatures. As an ACS grade Reagent, Spectrum Chemical manufactured Ammonium Chloride is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (1 per EA )
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    $1,782.80
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