Sodium Benzoate

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CAS Number:7631-99-4


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SECTION 1: Identification of the substance/mixture and of the company/undertaking 

1.1Product identifiers Sodium Benzoate 

Product name : 

CAS-No. : 532-32-1 

1.2Relevant identified uses of the substance or mixture and uses advised against 

Identified uses : Laboratory chemicals, Industrial & for professional use only. 

SECTION 2: Sodium Benzoate – Hazards identification 

2.1 Classification of the substance or mixture 

Classification according to Regulation (EC) No 1272/2008 

Eye irritation (Category 2), H319 

For the full text of the H-Statements mentioned in this Section, see Section 16. 

Classification according to EU Directives 67/548/EEC or 1999/45/EC 

Xi Irritant R36 

For the full text of the R-phrases mentioned in this Section, see Section 16. 

2.2 Label elements 

Labelling according Regulation (EC) No 1272/2008 


Signal word Warning 

Hazard statement(s) 

H319 Causes serious eye irritation. 

Precautionary statement(s) 

P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove  contact lenses, if present and easy to do. Continue rinsing.

Sodium Benzoate 

Supplemental Hazard none 


2.3Other hazards – none 

SECTION 3: Composition/information on ingredients 


Synonyms : Benzoic acid sodium salt 

Formula : C7H5NaO2 

Molecular weight : 144,11 g/mol 

CAS-No. : 532-32-1 

EC-No. : 208-534-8 

Hazardous ingredients according to Regulation (EC) No 1272/2008 

Component Classification Concentration 

Sodium benzoate 

CAS-No. 532-32-1 Eye Irrit. 2; H319 <= 100 % EC-No. 208-534-8 

Hazardous ingredients according to Directive 1999/45/EC 

Component Classification Concentration 

Sodium benzoate 

CAS-No. 532-32-1 Xi, R36 <= 100 % EC-No. 208-534-8 

For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16 

SECTION 4: Sodium Benzoate – First aid measures 

4.1 Description of first aid measures 

General advice 

Consult a physician. Show this safety data sheet to the doctor in attendance. 

If inhaled 

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. 

In case of skin contact 

Wash off with soap and plenty of water. Consult a physician. 

In case of eye contact 

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. 

If swallowed 

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. 

4.2 Most important symptoms and effects, both acute and delayed 

The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in  section 11 

4.3 Indication of any immediate medical attention and special treatment  

needed No data available 

SECTION 5: Firefighting measures 

5.1 Extinguishing media 

Suitable extinguishing media 

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

Sodium Benzoate



5.2 Special hazards arising from the substance or mixture 

Carbon oxides, Sodium oxides 

5.3 Advice for firefighters 

Wear self-contained breathing apparatus for firefighting if necessary. 

5.4 Further information 

No data available 

SECTION 6: Accidental release measures 

6.1 Personal precautions, protective equipment and emergency procedures 

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure  adequate ventilation. Avoid breathing dust. 

For personal protection see section 8. 

6.2 Environmental precautions 

Do not let product enter drains. 

6.3 Methods and materials for containment and cleaning up 

Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed  containers for disposal. 

6.4 Reference to other sections 

For disposal see section 13. 

SECTION 7: Handling and storage 

7.1 Precautions for safe handling 

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. 

Provide appropriate exhaust ventilation at places where dust is formed. 

For precautions see section 2.2. 

7.2 Conditions for safe storage, including any incompatibilities 

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. 


7.3 Specific end use(s) 

Apart from the uses mentioned in section 1.2 no other specific uses are stipulated 

SECTION 8: Sodium Benzoate – Exposure controls/personal protection 

8.1 Control parameters 

Components with workplace control parameters 

8.2 Exposure controls 

Appropriate engineering controls 

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and  at the end of workday. 

Personal protective equipment 

Eye/face protection 

Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested  and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). 

Skin protection 

Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal  technique (without touching glove’s outer surface) to avoid skin contact with this product.  Dispose of contaminated gloves after use in accordance with applicable laws and good  laboratory practices. Wash and dry hands. 

Body Protection





Respiratory protection 

For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher  level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges.  Use respirators and components tested and approved under appropriate government standards  such as NIOSH (US) or CEN (EU). 

Control of environmental exposure 

Do not let product enter drains. 

SECTION 9: Physical and chemical properties 

9.1 Information on basic physical and chemical properties 

  1. a) Appearance Form: powder 

Colour: white 

  1. b) Odour No data available 
  2. c) Odour Threshold No data available 
  3. d) pH 7,0 – 8,5 at 144,1 g/l at 25 °C 
  4. e) Melting point/freezing Melting point/range: > 300 °C – lit. 


  1. f) Initial boiling point and No data available 

boiling range 

  1. g) Flash point > 100 °C 
  2. h) Evaporation rate No data available 
  3. i) Flammability (solid, gas) No data available 
  4. j) Upper/lower No data available 

flammability or 

explosive limits 

  1. k) Vapour pressure < 0,01 hPa at 20 °C 
  2. l) Vapour density No data available 
  3. m) Relative density 1,440 g/cm3 
  4. n) Water solubility 556 g/l 
  5. o) Partition coefficient: n- log Pow: -2,13 


  1. p) Auto-ignition No data available 


  1. q) Decomposition No data available 


  1. r) Viscosity No data available 
  2. s) Explosive properties No data available 
  3. t) Oxidizing properties No data available 

9.2 Other safety information 

Dust explosion class St1 

SECTION 10: Stability and reactivity 

10.1 Reactivity 

No data available



10.2 Chemical stability 

Stable under recommended storage conditions.



10.3 Possibility of hazardous reactions 

No data available 

10.4 Conditions to avoid 

Avoid moisture. 

10.5 Incompatible materials 

Strong oxidizing agents 

10.6 Hazardous decomposition products 

Other decomposition products – No data available 

In the event of fire: see section 5 

SECTION 11: Sodium Benzoate – Toxicological information 

11.1 Information on toxicological effects 

Acute toxicity 

LD50 Oral – Rat – 2.100 mg/kg 

Skin corrosion/irritation 

Skin – Rabbit 

Result: No skin irritation 

(OECD Test Guideline 404) 

Serious eye damage/eye irritation 

Eyes – Rabbit 

Result: Eye irritation 

Respiratory or skin sensitisation 

No data available 

Germ cell mutagenicity 

No data available 


IARC: No component of this product present at levels greater than or equal to 0.1% is identified  as probable, possible or confirmed human carcinogen by IARC. 

Reproductive toxicity 

Specific target organ toxicity – single exposure 

No data available 

Specific target organ toxicity – repeated exposure 

No data available 

Aspiration hazard 

No data available 

Additional Information 

RTECS: DH6650000 

To the best of our knowledge, the chemical, physical, and toxicological properties have not been  thoroughly investigated. 

SECTION 12: Sodium Benzoate – Ecological information 

12.1 Toxicity 

Toxicity to fish LC50 – Pimephales promelas (fathead minnow) – 484 mg/l – 96 h 

12.2 Persistence and degradability 

Biodegradability Result: 90 % – Readily biodegradable. 

(OECD Test Guideline 301)



12.3 Bioaccumulative potential 

No data available 

12.4 Mobility in soil 

No data available 

12.5 Results of PBT and vPvB assessment 

PBT/vPvB assessment not available as chemical safety assessment not required/not conducted 12.6 Other adverse effects 

No data available 

SECTION 13: Disposal considerations 

13.1 Waste treatment methods 


Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material  with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. 

Contaminated packaging 

Dispose of as unused product. 

SECTION 14: Transport information 

14.1 UN number 


14.2 UN proper shipping name 

ADR/RID: Not dangerous goods 

IMDG: Not dangerous goods 

IATA: Not dangerous goods 

14.3 Transport hazard class(es) 


14.4 Packaging group 


14.5 Environmental hazards 

ADR/RID: no IMDG Marine pollutant: no IATA: no 

14.6 Special precautions for user 

No data available 

SECTION 15: Sodium Benzoate – Regulatory information 

This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006. 15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture 

No data available 

15.2 Chemical Safety Assessment 

For this product a chemical safety assessment was not carried out

The information stated above is considered to be correct, but does not claim to be inclusive and shall only be used as a guideline. The information provided by this document is confirmed by our continuous updating of knowledge and adheres to the products appropriate safety precautions. It does not represent any guarantee of the product’s
properties. RLS Chemicals and its Associates shall not be held accountable for any damage’s consequent of handling the above product.

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