Sodium Hydroxide
Synonyms: Caustic soda, Lye
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name
Sodium Hydroxide
Product Form
Substance
Catalogue No.
AL4158
CAS Number
1310-73-2
EC Number
215-185-5
EC Index Number
NaOH
Grade
Extra Pure
HSN Code
28151190
Molecular Formula
NaOH
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name
Sodium Hydroxide
Catalogue No.
AL4158
Product form
Substance
CAS Number
1310-73-2
EC Number
215-185-5
Grade
Extra Pure
EC Index Number
NaOH
Chemical Formula
NaOH
HSN Code
28151190
Synonyms
Caustic soda, Lye
Chemical Structure
-
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture
Used as a strong base in various chemical processes and applications.
Uses advised against
Not specified
1.3 Details of the supplier of the safety data sheet
Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Skin Corr. 1A
Classification source
ECHA C&L Inventory via PubChem CID 14798 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms
Corrosive
Signal word
Danger
Hazard statements
H314: Causes severe skin burns and eye damage
2.3 Other hazards
Other hazards
Corrosive to metals; may cause severe burns.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name
Sodium Hydroxide
CAS No.
1310-73-2
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation
Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention.
First-aid measures after skin contact
Flush with water, then rinse with dilute vinegar (acetic acid).
First-aid measures after eye contact
Flush with water at once for at least 15 min.
First-aid measures after ingestion
Give water and milk. Do NOT induce vomiting.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use
Burns to skin, eyes, and respiratory tract; may cause nausea and vomiting if ingested.
4.3 Indication of any immediate medical attention and special treatment needed
General information
Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures
Non-flammable, but may react with water to produce heat and caustic solutions.
5.3 Advice for firefighters
Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures
Contain spill and neutralize with dilute acid. Avoid water contact.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered plastic containers. Carefully collect remainder.
6.4 Reference to other sections
Reference
Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling
Handle with care, using appropriate personal protective equipment (gloves, goggles). Avoid contact with skin and eyes.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions
Separated from food and feedstuffs, strong acids and metals. Store only in original container. Dry. Well closed. Store in an area without drain or sewer access.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection if dust or mist is generated.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state
Solid
Colour
White
Odour
Odorless
Odour threshold
Not applicable
pH value
13 (1M solution)
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
323 °C
Freezing point
Not applicable
Boiling point
greater than 266 °F at 760 mmHg
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not applicable
Flammability (solid, gas)
Not flammable
Vapour pressure
VP: 1 Pa at 513 °C; 10 Pa at 605 °C; 100 Pa at 722 °C; 1kPa at 874 °C; 10 kPa at 1080 °C; 100 kPa at 1377 °C
Relative vapour density at 20°C
Not applicable
Density
2.13 g/cu cm 25 °C
Solubility
111 %
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity
Reacts violently with acids and generates heat upon dissolution in water.
10.2 Chemical stability
Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions
The solution in water is a strong base. It reacts violently with acid and is corrosive to metals such as aluminium, tin, lead and zinc. This produces a combustible/explosive gas (hydrogen).
10.4 Conditions to avoid
Conditions to avoid
Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials
Acids, organic materials, metals, and water.
10.6 Hazardous decomposition products
Hazardous decomposition products
When heated to decomposition it emits toxic fumes of sodium oxide.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Rat oral 140-340 mg/kg; LD50 Rabbit dermal 1,350 mg/kg; LD50 Mouse ip 40 mg/kg
Skin corrosion/irritation
H314: Causes severe skin burns and eye damage
Serious eye damage/irritation
Not classified (based on available data)
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
Not classified (based on available data)
Specific target organ toxicity (repeated exposure)
Not classified (based on available data)
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information
Not specified
12.2 Persistence - degradability
Persistence - degradability
Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential
Not specified
12.4 Mobility in soil
Mobility in soil
Not specified
12.6 Other adverse effects
Environmental precautions
Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR)
1823
UN-No. (IMDG)
1823
UN-No. (IATA)
1823
UN-No. (ADN)
1823
UN-No. (RID)
1823
14.2 UN proper shipping name
Proper Shipping Name (ADR)
Sodium hydroxide, solid
Proper Shipping Name (IMDG)
Sodium hydroxide, solid
Proper Shipping Name (IATA)
Sodium hydroxide, solid
Proper Shipping Name (ADN)
Sodium hydroxide, solid
Proper Shipping Name (RID)
Sodium hydroxide, solid
14.3 Transport hazard class(es)
Transport hazard class(es)
8
14.4 Packing group
Packing group (ADR)
II
Packing group (IMDG)
II
Packing group (IATA)
II
Packing group (ADN)
II
Packing group (RID)
II
14.5 Environmental hazards
Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations
Not specified
SECTION 16: Other Information
Disclaimer
The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.