Sodium benzoate CAS 532-32-1

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Product Introduction

Salt benzoate, likewise referred to as salt benzoate, is an organic substance with the chemical formula C7H5NaO2, which is a white granular or crystalline powder.

Odorless or slightly benzoin odor, slightly pleasant taste, astringent preference, family member molecular mass of 144.12, secure in air, easily soluble in water, the pH value of its aqueous remedy is 8, soluble in ethanol.

Sodium benzoate is an acidic preservative and has no antiseptic or bacteriostatic impact in alkaline tool.

Benzoic acid and its salts are broad-spectrum antimicrobial representatives, however their antimicrobial efficiency is dependent on the pH of the food.

Sodium benzoate will boost its bacteriostatic as well as antiseptic result as the level of acidity of the tool increases, however shed its bactericidal and also bacteriostatic impact in an alkaline tool.

The optimal pH value of its anticorrosion is 2.5 ~ 4.0.

Sodium benzoate paramete

CAS No.: 532-32-1
MF: C7H5NaO2, C7H5NaO2
Place of Origin: Shandong, China
Brand Name: Lookchemical
Product name: Sodium benzoate
Color: White
Delivery time: 2-3days
MOQ: 1 Kg
Melt Point: >300 °C
Other Names: PUROX S
EINECS No.: 208-534-8
Type: Preservatives
Model Number: C532-32-1
CAS: 532-32-1
Package: 25kg bags/1000kg bags
Grade: Industry Garde, feed grade
Application: food preservative


Used in pharmaceutical industry and plant genetic research, also used as dye intermediates, fungicides and preservatives

Preservatives; Antimicrobial agents.

Sodium benzoate is also an important acid food preservative. When used, it is converted to the effective form of benzoic acid. See benzoic acid for scope and usage. In addition, it can also be used as a feed preservative.

The product is used as food additive (preservative), bactericide in pharmaceutical industry, mordant in dyestuff industry, plasticizer in plastic industry, and also used as intermediate in organic synthesis of spices.

The cosolvent of serum bilirubin test. Fungicide. Preservatives. Dye intermediates.

Sodium benzoate is usually made use of in the conservation of extremely acidic fruits, berries, fruit juices, jams, drink syrups and other acidic foods.


Item Specification
Acidity & Alkalinity 0.2ml
Assay 99.0% min
Moisture 1.5% max
Water solution test Clear
Heavy metals (As Pb) 10 ppm max
As 2 ppm max
Cl 0.02% max
Sulfate 0.10% max
Carburet Meet the requirement
Oxide Meet the requirement
Phthalic acid Meet the requirement
Color of solution Y6
Total Cl

0.03% max


Pre-Sales Service

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

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

* Sample testing support.

*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

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

*The fact of logistics information monitoring.

*Product has any problem can return.


Secure and discreet shipment. You have various choices of transportation methods.

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.


Q1: Do you accept sample order?
A:  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.
Q2:  What information should I let you know if I want to get a quotation
A :  Quality you require, eg. Assay, Purity, or single impurity -Quantity you need -Standard you want, such as USP, EP, JP etc.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
Q5: When will you deliver the goods
A :  For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
Q6: How to confirm the Product Quality before placing orders?
A :  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.

Sodium benzoate picture

Packaging and shipping