Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Benzoic Acid
1. Basic Information
Name: Benzoic Acid
Alias: Benzenecarboxylic acid
CAS No.: 65-85-0
Molecular Formula: C7H6O2
Molecular Weight: 122.12
2. Physical and Chemical Properties
Physical Properties
- Appearance: White crystalline flake or powder
- Odor: Faint characteristic benzoic odor
- Solubility: Slightly soluble in cold H2O, freely soluble in hot H2O, CH3OH, C2H5OH, ether, CHCl3; insoluble in aliphatic hydrocarbons
- Melting Point: 121–123 °C
- Boiling Point: 249 °C
- Hygroscopicity: Non-hygroscopic under normal humidity
- Aqueous Characteristic: Weakly acidic aqueous solution with bacteriostatic activity
Chemical Properties
- Molecular Structure: Single benzene ring linked with one carboxyl -COOH functional group
- Acid-base Reaction: Reacts with alkalis, carbonates to form benzoate salts (Sodium Benzoate, Potassium Benzoate)
- Esterification: Reacts with alcohols under acid catalysis to produce benzoate esters
- Thermal Stability: Sublimes completely at around 100 °C without decomposition; decomposes above boiling point
- Photostability: Stable under normal light, no discoloration or degradation
- Compatibility: Incompatible with strong oxidants, strong alkaline substances
3. Main Application Fields
1. Food Preservative Raw Material (Core Application)
Precursor for sodium benzoate food preservative; direct bacteriostatic additive for fruit drinks, jam, soy sauce and pickles
2. Pharmaceutical Synthetic Intermediate
Key building block for antibiotics, antipyretic analgesics and topical ointment APIs
3. Cosmetic & Daily Chemical Preservative
Mild bacteriostatic ingredient for cream, lotion, shampoo and oral care products
4. Dye, Coating & Organic Synthesis
Intermediate for mordant dyes; raw material for plasticizers, resin modifiers and analytical standard reagent
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 65-85-0 |
| Molecular Formula | C7H6O2 |
| Appearance | White crystalline powder |
| HPLC Purity | Food Grade ≥99.5%; Pharma Grade ≥99.8% |
| Water Content (KF) | ≤0.30% |
| Melting Range | 121–123 °C |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb1) | Food grade ≤10 ppm |
| Packaging | 25kg PE lined fiber drum / woven bag |
| Storage Condition | Hermetically sealed in cool dry warehouse below 25 °C; isolate from alkaline materials and oxidants |
| Transportation Requirement | Sublimable acidic solid, sealed packaging to prevent volatile loss |
| Shelf Life | 36 months under intact sealed packaging |
Safety Warning
Mild corrosive acidic powder. Dust irritates eyes, respiratory tract and skin; long-term skin contact causes redness and itching. Wear dust mask, acid-resistant gloves and protective goggles in ventilated workshop. Avoid mixing with strong alkali to prevent exothermic neutralization reaction. Waste liquid requires neutralization before discharge; solid waste belongs to general organic hazardous waste for centralized disposal.
