SODIUM BENZOATE

sodium benzoateWhite amorphous powder (or bar particle,nodular particle) solids, readily soluble in water, slightly soluble in alcohol.Widely used as a preservative in food and medicines, anti-icing fluid in automobiles, antirust agent of iron and steel, and plastics ingredients.

[Formula] C6H5COONa

[CAS NO.] 532-32-1

[Structure]

[Specification] medicinal, food Performing

[Standard] B.P. 1998, GB1902-94(food) and USP23, FCC, NF, JB, according to customers' requirements. Capacity: 30000 tons/year.

Sodium Benzoate is primarily used as a preservative in the food and beverage industries. It also is used as a preservative in cosmetic products and as a corrosion inhibitor in automotive and other antifreeze products. Velsicol offers three forms of sodium benzoate -- Probenz?SG (Sodium Benzoate Granular), Sodium Benzoate (Powder) and Sodium Benzoate EF(Extruded). All conform to FCC Food Grade / E211 / EP Grade specification requirements.

[Package] Braided bag (25Kg) lined with PE plastic bag. Iron drum (50Kg) lined with PE plastic bag. And paper bag (50 pound), braided bag (500Kg) according to customers' requirement. Sodium benzoate Chemical Formula: Synonyms Benzoate of soda Description White powder or crystals. Sodium benzoate converts to benzoic acid when use in acidic mixtures. Benzoic acid has good anti-microbial features, but does not dissolve well in water, whereas sodium benzoate dissolves very well in water. Sodium benzoate is used in acidic foods and products to control bacteria, mold, yeasts, and other microbes. It interferes with their ability to make energy. Because it only converts to benzoic acid in acidic environments, it is not used for its anti-microbial action unless the pH is below about 3.6. In the food industry, it is used in items such as jams, salad dressing, juices, pickles, and carbonated drinks. It is also used as a corrosion inhibitor in automotive anti-freeze products. Sodium benzoate, also known as benzoate of sodium, is the sodium salt of benzoic acid. It is a polyunsaturated fat. Physical and Chemical Properties appearance- white granules or crystalline powder odor- odorless solubility- soluble in water (1gm/ 2mL water) density- 1.44 boiling point- not applicable melting point- >300oC (>572oC) Figure 1. Structure of sodium benzoate Sodium benzoate is used as a preservative in food. It prevents the growth of almost all microorganisms. It's concentration is limited to 0.1% because it is poisonous. Sodium benzoate works best in acidic environments and is used in such foods as salad dressing, pickles, fruit juices, and carbonated drinks. It is also used in medications like Actifed and Tylenol. Figure 2. Orange soft drinks contain a high amount of sodium benzoate. Figure 3. Sodium benzoate is also found in the pain reliever Tylenol. MadSci Network: Chemistry -------------------------------------------------------------------------------- Re: How toxic is sodium benzoate? Date: Mon Sep 18 20:29:47 2000 Posted By: Gil Stoewsand, Faculty, Food Science & Technology, Cornell University Area of science: Chemistry ID: 966712600.Ch -------------------------------------------------------------------------------- Message: Sodium benzoate is a very widespread food preservative used much under 0.1% in many foods from soup to cereals. The considerable time between the production and the consumption of food today makes some use of preservatives necessary in order to prevent spoilage and undersirable alterations in color, flavor, or nutrients. Degradation pathways for benzoic acid (produced in the body from the sodium salt) have been studied in detail and have shown the harmlessness of this substance: 75-80% is excreted within 6 hours, and the total dose leaves the body within about 10 hours. It does not cause cancer. The limit of sodium benzoate in foods is not because of its toxicity, but at levels higher than 0.1% will leave an unacceptable aftertaste. Foods containing this preservative are much healthier than non-preservative foods since harmfull microorganism growth is inhibited, food oxidation is prevented, and food nutrients are preserved. Chronic toxicities were examined in rats fed diets containing up to a total of 1%. After 4 generations there were no changes in normal patterns of growth, reproduction, lactation and no morphological abnomalities of organs. Acute toxicity studies, where one large dose of sodium benzoate is given to animals, showed no lethal effects until 2 grams per kg. body wt. was administered. One could not eat enough foods containing sodium benzoate to even get 0.002% of this amount! Limits of sodium benzoate in foods is not because of toxicity, but it will impart a taste that will make some foods unacceptable. This is a very non-toxic compound and foods containing presevatives are usually much healthier since harmful microorganism growth is inhibited, oxidation is checked, and nutrients, natural or added, are saved.

Liquid Fluorosilicon elastomer AFS-R-1100

[Composition] low molecular weight polymer of methyl-(3,3,3-trifluoropropyl) siloxane

[Characteristics] AFS-R-1100 is a fluid fluorosilicon elastomer whose molecular weight is only tens of thousands and appears as colorless or slight yellow transparent sticky liquid. AFS-R-1100 is easy to process and convenient to apply because of its low molecular weight. Meanwhile it still keeps good performance owned by AFS-R-1000 which has resistance to chemical medium, oil and wide range of application temperature. It can be turned solidity under room temperature, so it can be used as adhesive agent and sealing agent. According to molecular weight it is classified as follows:

Items	Index
	1101	1102	1103
Appearance	Colorless, odorless or slight yellow transparent liquid, no visible impurities
Viscosity Pa. s	1~40	80~130	160~210
PH	Neutral
Content of volatile components	<3%

Note: typical values

[Application] applied in fields which need fluorosilicon elastomer but don't have good condition for processing, such as aerospace, petrochemical, mechanical process and transportation industries.
1.Integral sealing for oil tank of aircraft.
2.Adhering and fixing and mending for fluorosilicon elastomer-made rings and spacers. Adhering silicon elastomer and fluoro elastomer.
3.Adhering at special locations such as limited space, irregular trough, seam, ditch and mini motor, supporting board of fuel operation system. Adhering for some places need solvent cleaning.

[Package] PE drum. Each drum is 1kg, 2kg or 5kg.
[Storage] Put in cool and dry place. Validity is 1 year.
[Attention]
1. Shall be kept neutral, avoid being touched acid and alkali products.
2. The product is transparent. Once you find it is no longer transparent, please stop using it.

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