Sodium hydroxideby Naturallythinking Safety Data Sheet (SDS)

SDS for Sodium hydroxide

Safety Data Sheet (SDS) dated 09/12/2022

Batch Number: FRAMECPSR

Section 1: Identification of Product and Supplier

Product Name: Sodium hydroxide
Product Number: 5060233389728
Brand: Naturallythinking
UK: Naturallythinking, Unit 2 Mill Lane Trading Estate, Mill Lane, Croydon, CR0 4AA
EU: NTEU Ltd (HE 426545), Nikis 1, Anthoupoli, 2350, Nicosia, Cyprus
Contact Telephone: 020 38563588
Contact Email:

Section 2: Hazards IDENTIFICATION

Causes severe burns.

Classification: C: R35

Section 3: Composition and information on Ingredients

Inci: Sodium hydroxide
Cas: 1310-73-2
Einecs: 215-185-5

Section 4: First aid measures

Inhalation: remove victim immediately from source of exposure. Keep the affected person warm and at rest. Get prompt medical attention. Skin contact: Remove affect person from source of contamination. Remove contaminated clothing. Wash the skin immediately with soap and water. Get medical attention if any discomfort continues. Continue to rinse for at least 15 minutes. 


Ingestion: NEVER MAKE AN UNCONSCIOUS PERSON VOMIT OR DRINK  FLUIDS. Rinse mouth thoroughly. Get medical attention immediately. Drink plenty of water.


Eye contact: Remove victim immediately from source of exposure. Make sure to remove any contact lenses from the eyes before rinsing. Promptly wash eyes with plenty of water while lifting the eye lids. Get medical attention immediately. Continue to rinse.

Section 5: Fire - Fighting measures

Extinguishing media: This product is not flammable. Extinguish with foam, carbon dioxide or dry powder. Special hazards: carbon monoxide (CO). Carbon dioxide (CO2). Protective measures in fire: self contained breathing apparatus and full protective clothing must be worn in case of fire.

Section 6: Accidental release measures

Personal precautions: wear protective clothing for hands and eyes safety gloves and eye goggles. Environment precautions: do not allow ANY environmental contamination.


Cleaning up methods: DO NOT TOUCH SPILLED MATERIAL. Stop leak if possible without risk. Collect spillage in containers, seal securely and deliver for disposal according to local regulations. Flush contaminated area with 

plenty of water. Do not contaminate water sources or sewer. Inform authorities if large amounts are involved. 

Section 7: Handling and Storage

Usage precautions: avoid inhalation of dust and contact with skin and eyes. Storage: store in tightly closed original container in a dry, cool and well ventilated place. Keep original container. Store away from acids. Unsuitable 

containers - copper, zinc, aluminium, copper alloy, zinc alloy, aluminium alloy. Storage class: corrosive storage.

Section 8: Exposure controls and personal protection

Respiratory protection: if ventilation is insufficient, suitable respiratory protection must be provided. Hand protection: use suitable gloves if risk of skin contact. PVC or rubber gloves are recommended. Eye protection: use approved safety goggles. Wear tight fitting goggles or face shield. Other protection: wear appropriate clothing to prevent any possibility of skin contact. Hygiene measures: DO NOT SMOKE IN WORK AREA. Wash promptly if skin becomes wet or contaminated. 

Section 9: Physical data and chemical properties

Colour: White/off white.
Appearance: Pellets/flakes.
Solubility: soluble in water.
Flammability: not flammable.
Mol weight: 40
Boiling point (deg C) 1390
Melting point (deg C) 318
Bulk density: 1.175g/ml
Relative density: 2.13 

Section 10: Stability & Reactivity

Stability: stable under normal temperature conditions.
Condition to avoid: reacts strongly with concentrated acids and chloro- hydrocarbons. Reacts strongly with water.
Materials to avoid: strong acid. Strong oxidising substances. Strong oxides. Chemically active metals.
Hazardous decomposition products: fire or high temperatures may form toxic and corrosive vapours.

Section 11: Toxicological Information

Inhalation: dust is severely irritating to the upper respiratory system. Dust irritates the respiratory system and may cause coughing and difficulties in breathing. 

Ingestion: may cause burns in mucous membranes, throat, oesophagus and stomach. Causes burns. 

Skin contact: may cause severe chemical burns of the skin. Corrosive. Prolonged contact causes serious tissue damage.

Eye contact: causes burns. Risk or corneal damage. Visual disturbances including blurred vision.

Section 12: Ecological information

Ecotoxicity: the product may affect the acidity (pH factor) in water with the risk of harmful effect to aquatic organisms. Mobility: the product is soluble in water.

Bioaccumulation: the product is not bioaccumulating Degradability: the product is easily biodegradable

Section 13: Disposal considerations

General information: do not puncture or incinerate even when empty. Disposal methods: dispose of waste and residues in accordance with local authority requirements. 

Section 14: Transport information

UK Road Class : 8 Proper Shipping Name: Sodium Hydroxide, Solid.

UN No Road: 1823 UK Road Pack GR: II

ADR Class no: 8 ADR Class: 8 Corrosive substances

ADR Pack Group: II Hazard no: (ADR): 80

ADR Label no: 8 Hazchem Code: 2W

CEFIC TEC(R) No: 80GC6-II+III RID Class no: 8

RID Pack group: II UN No Sea: 1823 

IMDG Class: 8 IMDG Pack GR: II

EMS: F-A, S-B Marine Pollutant: No

UN No Air: 1823 Air Class: 8

Air Pack GR: II 

Section 15: Regulatory information

Risk phrases: R35, causes severe burns.

Safety phrases: S26, in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39: wear suitable gloves and eye/face protection. S45: in case of accident or if you feel unwell, seek medical advice immediately show label where possible.

Guidance notes: CHIP for everyone HSG(108). Workplace exposure limits 


Section 16: Other information

GMO Declaration

We declare that at present all our regisered and commercially available ingredients, extracts, oils, plants and skincare products are derived by traditional plant breeding methods. We do not have any ingredient, extract, oil or skincare product from genetically modified material

To the best of our knowledge, the information contained in the sheet is correct. However, we cannot accept responsibility for any consequences from its use.

Animal Testing Declaration

UK: As set out under the conditions in Schedule 34 - Amendment of Regulation (EC) No 1223/2009 and related amendments of The Product Safety and Metrology etc. (Amendment etc.) (EU Exit) Regulations 2019 neither the cosmetic nor its component product has been tested on animal purposes

EU:As set out in under the conditions in 1223/2009. Art. 15 Nar. Parliament and the Council of the EU 952/2013 neither the cosmetic nor its component product has been tested on animal purposes


We believe there is already a “safe” and known group of product ingredients used in the cosmetics industry which leave enough scope to be creative and innovative in product formulation without the need for anymore animal testing on new experimental ingredients.

Our suppliers each also agree to not to carry out animal testing on the products and ingredients we purchase. We have a self-imposed cut-off date of 2006 (this was the date our cosmetic formulations came into being) although in reality our suppliers normally have animal testing dates far in excess of this or have never tested at all.

We do not conduct any form of animal testing.

We do not commission any form of animal testing from a third party.

We operate a fixed cut-off date for animal testing and ingedients, which means we will not use any ingredient that has been tested or retested on animals for cosmetics purposes since January 1, 2006

If we find that a company is involved in animal testing in anyway that purchases from us, then we will cease supply immediately. It is a term and condition that by purchasing from Naturallythinking you will not involve yourself or your company in any form of Animal Testing, any violation of this will be dealt with as per any violation of our terms and condtions