| Safety data sheet |
| According to EC Directive 91/155/EEC |
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| 1. Identification of the substance/preparation and of the company/undertaking |
| Identification of the product | ||
| Catalogue No.: | 159319 | |
| Product name: | Sodium hydroxide Reag. Ph Eur | |
| Manufacturer/supplier identification | ||
| Company: |
Merck Ltd. 9th Floor, Monterey Tower, 2170 New Petchburi Road, Bangkapi, Huaykwang, Bangkok 10320 Tel: (662) 308 - 0218 |
|
| 2. Composition/information on ingredients |
| Synonyms |
| Caustic soda |
| CAS-No.: | 1310-73-2 | EC-Index-No.: | 011-002-00-6 | ||
| Molar mass: | 40.00 | EINECS-No.: | 215-185-5 | ||
| Molecular formula: | HNaO | ||||
| 3. Hazards identification |
| Causes severe burns. |
| 4. First aid measures |
|
After inhalation: fresh air. Summon doctor. After skin contact: wash off with plenty of water. Dab with polyethylene glycol 400. Immediately remove contaminated clothing. After eye contact: rinse out with plenty of water for at least 10 minutes with the eyelid held wide open. Immediately summon eye specialist. After swallowing: make victim drink plenty of water (if necessary several litres), avoid vomiting (risk of perforation!). Immediately summon doctor. Do not attempt to neutralize. |
| 5. Fire-fighting measures |
| Suitable extinguishing media: |
| CO2, powder. Cover with dry sand or cement. |
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Special risks: |
| Hydrogen may form upon contact with light metals (danger of explosion!). |
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Special protective equipment for fire fighting: |
| Do not stay in dangerous zone without suitable chemical protection clothing and self-contained breathing apparatus. |
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Other information: |
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Non-combustible. Prevent fire-fighting water from entering surface water or groundwater. |
| 6. Accidental release measures |
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Person-related precautionary measures: Avoid generation of dusts; do not inhale dusts. Environmental-protection measures: Do not allow to enter sewerage system. Procedures for cleaning / absorption: Carefully take up dry. Forward for disposal. Clean up affected area. Additional notes: Render harmless: neutralize with dilute sulfuric acid. |
| 7. Handling and storage |
| Handling: |
| No further requirements. |
| Storage: |
|
Tightly closed. Dry. Away from acids. Storage temperature: no restrictions. Requirements for storage rooms and containers: No aluminium, tin, or zinc containers. |
| 8. Exposure controls/personal protection |
| Specific control parameter | ||
| MAK Germany (max. workplace conc.) | ||
| Sodium hydroxide | 2 mg/m3 | |
| Personal protective equipment: | |
| Respiratory protection: | required when dusts are generated. |
| Eye protection: | required |
| Hand protection: |
required Protective clothing should be selected specifically for the working place, depending on concentration and quantity of the hazardous substances handled. The resistance of the protective clothing to chemicals should be ascertained with the respective supplier. |
| Industrial hygiene: | Immediately change contaminated clothing. Apply skin- protective barrier cream. Wash hands and face after working with substance. |
| 9. Physical and chemical properties |
| Form: | solid | |||
| Colour: | white | |||
| Odour: | odourless | |||
| pH value | ||||
| at 50 g/l water | (20 °C) | ~ 14 | ||
| Melting temperature | 324 °C | |||
| Boiling temperature | 1390 °C | |||
| Ignition temperature | not available | |||
| Flash point | not available | |||
| Explosion limits | lower | not available | ||
| upper | not available | |||
| Density | (20 °C) | 2.13 g/cm3 | ||
| Solubility in | water | (20 °C) | 1090 g/l | |
| water | (100 °C) | 3350 g/l |
| 10. Stability and reactivity |
| Conditions to be avoided |
| no information available |
| Substances to be avoided |
|
metals , light metals : Formation of: hydrogen (risk of explosion!) ; acids , nitriles , alkaline earth metals in powder form , ammonium compounds , cyanides , magnesium , organic nitro compounds , organic combustible substances , phenols and oxidizable substances |
| Hazardous decomposition products |
| no information available |
| Further information |
| hygroscopic |
| 11. Toxicological information |
| Acute toxicity |
| Quantitative data on the toxicity of this product are not available. |
| Subacute to chronic toxicity |
| An embryotoxic effect need not be feared when the threshold limit value is observed. |
| Further toxicological information |
|
After inhalation: burns of mucous membranes After skin contact: Burns. After eye contact: Burns. Risk of blindness! After swallowing: irritations of mucous membranes in the mouth, pharynx, oesophagus and gastrointestinal tract. Risk of perforation in the oesophagus and stomach. |
| Further data |
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Decomposition of the substance with tissue moisture. The product should be handled with the care usual when dealing with chemicals. |
| 12. Ecological information |
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Biologic degradation: biologically nondegradable Behavior in environmental compartments: Evaluation number (FRG) (fish): 3.7 ; Ecotoxic effects: Biological effects: Toxic effect on fish and plankton. Harmful effect due to pH shift. Death of fish possible. Does not cause biological oxygen deficit. Neutralization possible in waste water treatment plants. Fish toxicity: LC50: 189 mg/l (1 N solution = 40 g/l) ; fish EC0: < 20 mg/l ; aquatic organisms LC50: 10 - 100 mg/l /96 h ; Further ecologic data: Do not allow to enter waters, waste water, or soil! |
| 13. Disposal considerations |
| Product: |
| There are no uniform EC Regulations for the disposal of chemicals or residues. Chemical residues generally count as special waste. The disposal of the latter is regulated in the EC member countries through corresponding laws and regulations. We recommend that you contact either the authorities in charge or approved waste disposal companies which will advise you on how to dispose of special waste. |
| Packaging: |
| Disposal in compliance with official regulations. Handle contaminated packaging in the same way as the substance itself. If not officially specified differently, non-contaminated packaging may be treated like household waste or recycled. |
| 14. Transport information |
| Transport over land ADR/RID and GGVS/GGVE (Germany) | ||||
| GGVS/GGVE class: | 8 | Number and letter: | 41b | |
| ADR/RID class: | 8 | Number and letter: | 41b | |
| Name of material: | 1823 NATRIUMHYDROXID,FEST | |||
| River transport ADN/ADNR | |||
| not examined | |||
| Sea transport IMDG | ||||||
| IMDG class: | 8 | UN-No.: | 1823 | Packaging group: | II | |
| Ems: | 8-06 | MFAG: | 705 | |||
| Correct technical name: | SODIUM HYDROXIDE,SOLID | |||||
| Air transport ICAO-TI and IATA-DGR | |||||
| ICAO/IATA class: | 8 | UN/ID-No.: | 1823 | Packaging group: | II |
| Correct technical name: | SODIUM HYDROXIDE,SOLID | ||||
| The transport regulations are cited according to international regulations and in the form applicable in Germany (GGVS/GGVE). Possible national deviations in other countries are not considered. |
| 15. Regulatory information |
| Labelling according to EC Directives | ||
| Symbol: | C | Corrosive immediately and show this container or label. |
| R-phrases: | R 35 | Causes severe burns. |
| S-phrases: | S 26-37/39-45 | In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
| EC-No.: | 215-185-5 | EC label |
| German regulations | ||
| Water pollution class | 1 | (slightly polluting substance) |
| 16. Other information |
| Reason for alteration |
| General update. |
