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Zhishang Chemical

Benzoic Acid Sigma CAS 65-85-0

Molecular Formula: C7H6O2

Formula Weight: 122.12

ZSpharmac: Benzoic Acid Sigma Supplement

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Product Name: Benzoic Acid Sigma
CAS No: 65-85-0
Purity: 99%

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Basic Info

Product Name:Benzoic Acid Sigma
Other Names:Benzoic Acid
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White to Yellow-Beige to Orange Solid
EINECS No.:200-618-2
Provide:Benzoic Acid Sigma MSDS;
Benzoic Acid Sigma COA

What is Benzoic Acid Sigma?

Benzoic Acid Sigma It sublimates swiftly at 100 ° C, as well as its vapor is very annoying, which can quickly cause coughing after inhalation. Somewhat soluble in water, quickly soluble in natural solvents such as ethanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride as well as turpentine. It is commonly present in nature in the form of totally free acid, ester or its derivatives, as an example, in the form of cost-free acid as well as benzyl ester in benzoin gum; in the fallen leaves and also stem bark of some plants in the form of totally free; in incense Necessary oils exist in the form of methyl or benzyl esters; in steed urine as their acquired hippuric acid. Benzoic Acid Sigma is weak acid, stronger than fatty acid. Benzoic Acid Sigma is typically made use of as a drug or chemical, which has the impact of preventing the growth of fungis, microorganisms and also mold and mildews. It is normally related to the skin to deal with tinea-like skin diseases. For synthetic fibers, materials, coatings, rubber, tobacco industries. Originally Benzoic Acid Sigma was prepared by dry purification of benzoin gum tissue or hydrolysis of alkaline water, as well as additionally by hydrolysis of hippuric acid.

Benzoic Acid Sigma Properties:

Melting point 121-125 °C(lit.)
Boiling point 249 °C(lit.)
density 1.08
vapor density 4.21 (vs air)
vapor pressure 10 mm Hg ( 132 °C)
refractive index 1.504
Fp 250 °F
storage temp. 2-8°C
solubility soluble, clear, colorless (95% ethanol, 1gm/3mL)
pka4.19(at 25℃)
form Solid
color White to yellow-beige to orange
PH3.66(1 mM solution);3.12(10 mM solution);2.6(100 mM solution);
Water Solubility Slightly soluble. 0.34 g/100 mL


Benzoic Acid Sigma Uses

  1. Benzoic Acid Sigma is used as chemical reagent and also chemical.
  2. Benzoic Acid Sigma is an essential acid-type food preservative. Under acidic problems, it has inhibitory impacts on mold, yeast and germs, however has a weak result on acid-producing germs. The optimal pH for bacteriostasis is 2.5 to 4.0, generally less than the pH of 4.5 to 5.0. In the food market, the optimum use of concentrated fruit and vegetable juice in plastic barrels shall not exceed 2.0 g/kg; in jam (excluding tinned food), fruit juice (flavored) beverages, soy sauce as well as vinegar, the optimum usage quantity will be 1.0 g/kg; in The optimum use is 0.8 g/kg in soft sweet, wine and fruit red wine; 0.5 g/kg in low-salt pickles, sauces as well as maintains; 0.2 g/kg in carbonated beverages. Since Benzoic Acid Sigma is a little soluble in water, a percentage of ethanol can be utilized to liquify it.
  3. Benzoic Acid Sigma is a crucial acid-type feed chemical. Under acidic conditions, it has inhibitory results on mold and mildew, yeast as well as microorganisms, yet has a weak impact on acid-producing germs. The optimum pH for bacteriostasis is 2.5-4.0, usually lower than pH 4.5-5.0.
  4. Benzoic Acid Sigma Preservative; Antimicrobial. As a result of the reduced solubility of benzoic acid, it has to be completely stirred or dissolved in a percentage of warm water or ethanol. When utilized in focused fruit juice for revitalizing drinks, since benzoic acid is easily volatilized with water vapor, its sodium salt is commonly made use of. 1g of sodium salt is equivalent to 0.847 g of benzoic acid.
  5. Benzoic Acid Sigma is commonly utilized as a fixative or preservative. Likewise utilized as a preservative for fruit juice drinks. It can be made use of as an ointment incense scent. It can also be utilized in edible flavors such as delicious chocolate, lemons, oranges, sub-berries, nuts, and also candied fruit. It is likewise generally utilized in cigarette flavors.
  6. Benzoic Acid Sigma and its sodium salt are important preservatives in food. Under acidic problems, the inhibitory result on yeast as well as mold is solid when the pH value is 3, while the effect on lots of mold and mildews is extremely poor when the pH value is 6. For that reason, the maximum pH value for anti-bacterial is 2.5-4.0. Benzoic acid is mainly made use of in the manufacturing of salt benzoate food chemicals, dye intermediates, pesticides, plasticizers, mordants, medications, fragrances, and can additionally be made use of as modifiers for alkyd materials as well as polyamide resins for the manufacturing of polyester Basic material terephthalic acid and corrosion prevention for steel devices.
  7. Benzoic Acid Sigma is mostly used for antifungal and antiseptic.
  8. Benzoic Acid Sigma is used in the production of medications, color carriers, plasticizers, fragrances as well as food chemicals, and so on. It is additionally used in the efficiency improvement of alkyd resin coverings; utilized as an intermediate for pharmaceuticals and dyes, and also used to prepare plasticizers As well as seasonings, and so on, additionally as a rust inhibitor for steel devices.
  9. Benzoic Acid Sigma base measurable criterion. Iodine Quantitative Standard. Calorific worth standard. Validate aluminum, boron, cerium, copper, iron, lead, manganese, mercury, nickel, nitrate, nitrite, silver, titanium, tungsten as well as vanadium. Decision of light weight aluminum, copper, iron, titanium as well as uranium. Organic microanalysis criterion for the determination of carbon, hydrogen, oxygen and relative molecular mass. Also utilized for benzoylation in organic evaluation.

How to Use Benzoic Acid Sigma in Food Additives

1. The anti-bacterial task of the molecular state of Benzoic Acid Sigma is greater than that of the ionic state, so when the pH is less than 4, the antibacterial task is high, and also the minimum anti-bacterial concentration is 0.015% -0.1%. However, its solubility is decreased in acidic remedy, so its bacteriostatic activity is not just boosted by increasing the acidity of the solution. The optimal bacteriostatic pH of benzoic acid is 2.5 ~ 4.0.
2. As a result of the reduced solubility of Benzoic Acid Sigma to water, it is usually contributed to the food after including an appropriate amount of sodium carbonate or sodium bicarbonate, liquifying it with warm water over 90 ℃, as well as transforming it into salt benzoate. If benzoic acid has to be made use of, it can be liquified in an ideal quantity of ethanol before application.
3. Because the solubility of Benzoic Acid Sigma to water is less than that of sodium benzoate, when making use of salt benzoic acid in acidic food, attention ought to be paid to prevent precipitation and also decrease its use effect as a result of the conversion of sodium benzoic acid into benzoic acid.
4. 1g of Benzoic Acid Sigma amounts 1.18 g of salt benzoate; 1g of salt benzoic acid amounts 0.847 g of benzoic acid 5. Benzoic acid can be used together with para-hydroxybenzoic acid esters in soy sauce and also great beverage Chemicalbook for harmony. Dosage:
1. China’s “Hygienic Standard for the Use of Food Additives” (GB2760-1996) specifies: carbonated beverages, the maximum use quantity is 0.2 g/kg; low-salt pickles, sauces, candied fruit, 0.5 g/kg; a glass of wine, fruit red wine, fudge, 0.8 g/kg; soy sauce, vinegar, jam (leaving out tinned food), fruit juice (flavorful) beverages, 1.0 g/kg; focused vegetables and fruit juice in plastic drums for food market, 2g/kg; fruit juice (fruit flavored) ice, 1.0 g/kg (mixed or utilized alone). When Benzoic Acid Sigma as well as salt benzoate are used at the same time, the optimum amount of benzoic acid need to not be exceeded.
2. Recommendation for practical usage: Benzoic Acid Sigma as well as sodium benzoate are commonly utilized to protect very acidic fruits, berries, fruit juices, jams, drink syrups and various other acidic foods. Different nations have various foods and also concentrations for the use of this item

Prepared by Benzoic Acid Sigma

industrial law
At present, Benzoic Acid Sigma is mainly produced by liquid-phase air oxidation of toluene in industry. In the process, cobalt naphthenate is used as a catalyst, and the reaction temperature is 140-160 DEG C and the operating pressure is 0.2-0.3MPa to generate benzoic acid. After the reaction, the toluene is evaporated, and the product is obtained by distillation under reduced pressure and recrystallization. This process utilizes cheap raw materials and has high yield, so it is the method mainly used in industry.
The main reaction of the laboratory method:
1. Toluene + potassium permanganate + water – potassium benzoate + potassium hydroxide + manganese dioxide + water (the previous water is to provide the reaction environment)
2. Potassium benzoate + concentrated hydrochloric acid – Benzoic Acid Sigma
Medicines and dosage:
Toluene 1.5g (1.7ml, 0.016mol), potassium permanganate 5g (0.032mol), cetyltrimethylammonium bromide 0.1g
Experimental operation:
Use a 100ml round bottom flask. Install the return device. Add 5g potassium permanganate, 0.1g cetyltrimethylammonium bromide, 1.7ml toluene and 50ml water to the reaction flask respectively, stir and heat for boiling (vigorous stirring, vigorous boiling) to keep the reactant solution boiling smoothly.
When a large amount of brown precipitates are formed, the purple color of potassium permanganate becomes light or disappears, and the toluene layer disappears, the reaction basically ends. The manganese dioxide precipitate was filtered out, the filtrate was acidified with concentrated hydrochloric acid, the precipitate of Benzoic Acid Sigma was precipitated, and the crude product was obtained by suction filtration. The crude product is recrystallized from water. Dry on a boiling water bath, weigh and measure the melting point.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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