Chemical Product Identification & Regulatory Data
Official chemical identifiers, CAS numbers, and regulatory compliance information
Basic Product Information
Regulatory Identifiers
Chemical Abstracts Service registry number - unique identifier for chemical substances
Uses Information
Overview
Caustic Soda Solution 50%, Membrane Grade commonly used manufacture : manufacture of substance . use at industrial sites : industrial use . widespread use by professional workers : professional use . consumer use : consumer use ..
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GHS Hazard Classification & Safety Warnings
Globally Harmonized System (GHS) hazard pictograms, signal words, and safety classifications
Classification Status
Signal Word
Hazard Classifications
GHS Hazard Pictograms & Safety Symbols
GHS05
GHS (Globally Harmonized System) pictograms indicate specific chemical hazard categories and safety precautions
Hazard Statements
- H290: May be corrosive to metals.
- H314: Causes severe skin burns and eye damage.
Precautionary Statements
- P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
- P301+P330: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
- P331: Do NOT induce vomiting.
- P303+P361: IF ON SKIN (or hair): Take off immediately all contaminated clothing.
- P353: Rinse skin with water.
- P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P310: Immediately call a POISON CENTER and/or doctor.
- P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
- P305+P351: IF IN EYES: Rinse cautiously with water for several minutes.
- P338: Remove contact lenses, if present and easy to do. Continue rinsing.
- P390: Absorb spillage to prevent material damage.
Chemical Manufacturers & Supply Chain
Authorized suppliers, manufacturers, and distribution network information
DOW BENELUX B.V.
regional supplier
HERBERT H.DOWWEG 5 HOEK 4542 NM TERNEUZEN NETHERLANDS
NL
(31) 115 67 2626
24/7 Emergency Response & Poison Control
Critical emergency contact numbers for chemical spills, exposure incidents, and medical emergencies
Emergency Contact
31-(0)115 694982
NL
24-Hour
Emergency Contact
00 32 3575 0330
BE
Belgium Poison Center
070/245.245
BE
Chemical Composition & Hazardous Ingredients
Detailed component analysis, concentration ranges, and hazardous substance identification
Product Type
substanceChemical Components & Hazardous Substances
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| sodium hydroxide EC: 215-185-5 | 1310-73-2 | 49-51% | ⚠️ Hazardous |
| Water EC: 231-791-2 | 7732-18-5 | 49-51% | ✓ Non-hazardous |
Additional Information
For the full text of the H-Statements mentioned in this Section, see Section 16.
Composition Notes
If present in this product, any not classified components disclosed above for which no country specific OEL value(s) is(are) indicated under Section 8, are being disclosed as voluntarily disclosed components.
Emergency First Aid Measures
Critical first aid procedures for chemical exposure incidents and medical emergencies
🫁 Inhalation Exposure
Move person to fresh air and keep comfortable for breathing. If not breathing, give artificial respiration; if by mouth to mouth use rescuer protection (pocket mask, etc). If breathing is difficult, oxygen should be administered by qualified personnel. Call a physician or transport to a medical facility.
🖐️ Skin Contact
Immediate continued and thorough washing in flowing water for at least 30 minutes is imperative while removing contaminated clothing. Prompt medical consultation is essential. Wash clothing before reuse. Properly dispose of leather items such as shoes, belts, and watchbands. Remove chemical goggles last to keep material from washing into the eyes. Do not apply oils or lotion. Keep person warm. Suitable emergency safety shower facility should be immediately available.
Symptoms:
Severe burns.
👁️ Eye Contact
Wash eyes immediately and continuously with water for 30 minutes. Remove contact lenses after the first 5 minutes and continue washing. Seek medical attention immediately, preferably from an ophthalmologist. Wash eyes en route if possible. Seek medical attention immediately. Washing with water is the only acceptable method of removal of caustic soda (lye) from the eyes and skin. You may have 10 seconds or less to avoid serious permanent injury. Continue washing until the physician advises to stop. Do not use soap or attempt to neutralize with chemicals.
Symptoms:
Serious eye damage.
🍽️ Ingestion/Swallowing
Do not induce vomiting. Give one cup (8 ounces or 240 ml) of water or milk if available and transport to a medical facility. Do not give anything by mouth unless the person is fully conscious.
Symptoms:
Swallowing may result in burns and/or ulceration of mouth, stomach and lower gastrointestinal tract with subsequent stricture. Aspiration of vomitus may cause lung injury.
🚨 Immediate Medical Attention Required
Call a physician or transport to a medical facility (for inhalation). Prompt medical consultation is essential (for skin contact). Seek medical attention immediately, preferably from an ophthalmologist (for eye contact). Transport to a medical facility (for ingestion).
Medical Treatment
Eye irrigation may be necessary for an extended period of time to remove as much caustic as possible. Duration of irrigation and treatment is at the discretion of medical personnel. Maintain adequate ventilation and oxygenation of the patient. For burns of skin only. If burn is present, treat as any thermal burn, after decontamination. Suggest endotracheal or esophageal control if lavage is done. Treatment of exposure should be directed at the control of symptoms and the clinical condition of the patient.
Related Chemical Substances & Alternative Products
Similar chemicals with comparable safety profiles and industrial applications
Technical Specifications & Material Properties
Physical state, chemical properties, melting point, boiling point, and material characteristics
Exposure Controls & Personal Protective Equipment (PPE)
Occupational exposure limits, engineering controls, and required safety equipment
🏭 Engineering Controls
Use engineering controls to maintain airborne level below exposure limit requirements or guidelines. If there are no applicable exposure limit requirements or guidelines, use only with adequate ventilation. Local exhaust ventilation may be necessary for some operations.
🧤 Hand Protection
Use chemical resistant gloves classified under Standard EN374: Protective gloves against chemicals and micro-organisms. Examples of preferred glove barrier materials include: Butyl rubber. Natural rubber ("latex"). Nitrile/butadiene rubber ("nitrile" or "NBR"). Polyethylene. Ethyl vinyl alcohol laminate ("EVAL"). Polyvinyl chloride ("PVC" or "vinyl"). Examples of acceptable glove barrier materials include: Chlorinated polyethylene. Neoprene. Avoid gloves made of: Polyvinyl alcohol ("PVA"). When prolonged or frequently repeated contact may occur, a glove with a protection class of 6 (breakthrough time greater than 480 minutes according to EN 374) is recommended. When only brief contact is expected, a glove with a protection class of 3 or higher (breakthrough time greater than 60 minutes according to EN 374) is recommended. Glove thickness alone is not a good indicator of the level of protection a glove provides against a chemical substance as this level of protection is also highly dependent on the specific composition of the material that the glove is fabricated from. The thickness of the glove must, depending on model and type of material, generally be more than 0.35 mm to offer sufficient protection for prolonged and frequent contact with the substance. As an exception to this general rule it is known that multilayer laminate gloves may offer prolonged protection at thicknesses less than 0.35 mm. Other glove materials with a thickness of less than 0.35 mm may offer sufficient protection when only brief contact is expected. NOTICE: The selection of a specific glove for a particular application and duration of use in a workplace should also take into account all relevant workplace factors such as, but not limited to: Other chemicals which may be handled, physical requirements (cut/puncture protection, dexterity, thermal protection), potential body reactions to glove materials, as well as the instructions/specifications provided by the glove supplier.
👁️ Eye Protection
Use chemical goggles. Chemical goggles should be consistent with EN 166 or equivalent.
😷 Respiratory Protection
Respiratory protection should be worn when there is a potential to exceed the exposure limit requirements or guidelines. If there are no applicable exposure limit requirements or guidelines, wear respiratory protection when adverse effects, such as respiratory irritation or discomfort have been experienced, or where indicated by your risk assessment process. In misty atmospheres, use an approved particulate respirator. Use the following CE approved air-purifying respirator: Particulate filter, type P2 (meeting standard EN 143).
🦺 Skin/Body Protection
Use protective clothing chemically resistant to this material. Selection of specific items such as face shield, boots, apron, or full body suit will depend on the task.
🌍 Environmental Exposure Controls
See SECTION 7: Handling and storage and SECTION 13: Disposal considerations for measures to prevent excessive environmental exposure during use and waste disposal.
Transportation & Shipping Information
UN numbers, shipping names, transport classes, and regulatory transport requirements
🏷️ UN Number
UN 1824
📦 Proper Shipping Name
SODIUM HYDROXIDE SOLUTION
⚠️ Transport Hazard Class
8
📋 Packing Group
II
✈️ IATA Air Transport Precautions
No data available.
Chemical Safety FAQ & Common Questions
Most frequently asked questions about safety, handling, storage, and regulatory compliance
What is the hazard signal word for Caustic Soda Solution 50%, Membrane Grade?
The signal word for this substance is "danger".
What is the physical form of Caustic Soda Solution 50%, Membrane Grade?
Caustic Soda Solution 50%, Membrane Grade is a liquid above freezing point with colorless color. It has odorless odor.
What is Caustic Soda Solution 50%, Membrane Grade used for?
Manufacture : Manufacture of substance . Use at industrial sites : Industrial use . Widespread use by professional workers : Professional use . Consumer use : Consumer use .
What are the hazard statements for Caustic Soda Solution 50%, Membrane Grade?
This substance has 2 hazard statements: H290: May be corrosive to metals. H314: Causes severe skin burns and eye damage.
What is the melting point of Caustic Soda Solution 50%, Membrane Grade?
The melting point is 14 C _Literature_ and the boiling point is 145 C _ASTM D1120_.