Technical Data Sheet · Version 1.0 · Issued 02 July 2026
Technical Data Sheet
Caustic Soda
Product Description
Chemical Composition
| Component | CAS Number | % w/w |
|---|---|---|
| Sodium Hydroxide (NaOH) | 1310-73-2 | ≥99% |
Physical & Chemical Properties
| ph | 14 (for 1% aqueous solution) |
| odour | Odourless |
| colour | White |
| viscosity | Not applicable (solid form) |
| appearance | White solid flakes |
| solubility | Highly soluble in water |
| flash point | Not applicable (non-flammable solid) |
| boiling point | 1388 °C |
| specific gravity | 2.13 g/cm³ (solid) |
Performance Data & Dosage
| contact time | Varies with process; consult technical support |
| compatibility | Water, Various organic solvents (under controlled conditions) |
| dilution ratio | Consult product label or application guidelines |
| incompatibility | Strong acids, Aluminum and zinc metals, Ammonium salts, Organic halides, Combustible materials |
| recommended dosage | Dependent on specific industrial application; consult technical support |
| treatment temperature | Typically ambient to 80°C depending on process |
Applications & Industries
Applications
- Detergent manufacturing
- Water treatment
- Textile processing
- Pulp and paper production
- Food processing
- Mining chemical treatment
Industries Served
Health & Safety (GHS)
Signal Word: Danger
Hazard Class: Skin Corrosion Category 1A; Serious Eye Damage Category 1
Hazard Statements:
- Causes severe skin burns and eye damage
- May be corrosive to metals
PPE Required:
first aid skin
Immediately rinse skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Seek medical attention.
first aid eyes
Rinse cautiously with water for at least 15 minutes. Remove contact lenses if present and easy to do. Seek immediate medical attention.
first aid ingestion
Do NOT induce vomiting. Rinse mouth with water and seek immediate medical attention.
Storage & Handling
| disposal | Dispose of in accordance with local, regional, and national regulations. Neutralize with dilute acid before disposal if appropriate. |
| shelf life | Consult product label; typically 1 year when stored properly |
| container material | HDPE bags or drums with corrosion-resistant liners |
| storage conditions | Store in a dry, cool, well-ventilated area away from moisture and incompatible materials such as acids and metals. Protect container from physical damage and moisture. |
| storage temperature | Ambient temperature (10-30°C) recommended |
Packaging & Transport
| un number | 1823 |
| packing group | II |
| transport class | 8 (Corrosive substances) |
Standards & Compliance
| Standard | Scope |
|---|---|
| KEBS KS EAS 29:2015 | Sodium Hydroxide technical grade specification |
| ISO 9001:2015 | Quality management systems - applicable to Zenco Chemicals supply chain |
Frequently Asked Questions
Is bulk discounting available?
Yes, we offer tiered pricing for orders exceeding 500kg. Contact sales for custom quotes.
What is the minimum order quantity?
Standard MOQ is 25kg for most products. Exceptions available for established suppliers.
Is Caustic Soda safe for food processing?
Yes, when food-grade specifications are met. Confirm with Zenco Systems Ltd for compliance.
How should Caustic Soda be stored?
Store in dry, cool, well-ventilated areas away from moisture and incompatible materials.
Do you supply to all East African countries?
Yes, including Kenya, Uganda, Tanzania, Rwanda, Burundi, South Sudan, Ethiopia, Somalia, and DRC.
Want a downloadable copy of this datasheet?
Contact our technical team and we will send you the full official PDF directly to your inbox.
Explore additional industrial chemicals and water treatment products offered by Zenco Chemicals at /products/category/industrial-chemicals, /products/water-treatment, and /products/category/detergent-chemicals. For industry-specific solutions, see /industries/mining and safety guidelines at /blog/chemical-handling-safety-guide.