Description
Why Choose Our Caustic Soda?
- Industrial-grade purity
- Bulk availability with quality packaging
- Suitable for multipurpose cleaning
- Consistent grain size & fast solubility
- Affordable price per kg
Technical Specifications
✅ INCI Name: Sodium Hydroxide
✅ Formula: NaOH
✅ Appearance: White flakes, pellets, or powder
✅ Purity: 98–99% Industrial Grade
✅ Packaging: 25kg HDPE bags | Custom bulk orders available
✅ HSN Code: 28151110
Handling & Safety Guidelines
While safer than caustic soda, handle caustic soda with care:
- Always wear gloves, goggles, & protective clothing
- Avoid direct contact with eyes & skin
- Store in a cool, dry, and well-ventilated area
- Keep out of reach of children
- Never mix with acids without proper guidance
- Use in well-ventilated environments
Caustic Soda Price (India) – 2025 Rates Per KG
| City/Region | Price per KG (Approx.) |
|---|---|
| Delhi NCR | ₹39 – ₹45 |
| Mumbai / Maharashtra | ₹41 – ₹47 |
| Bengaluru / Karnataka | ₹42 – ₹48 |
| Hyderabad / Andhra Pradesh | ₹38 – ₹42 |
| Gujarat / Ahmedabad | ₹38 – ₹44 |
| Tamil Nadu / Chennai | ₹43 – ₹49 |
| Kolkata / West Bengal | ₹40 – ₹46 |
✅ Prices are subject to market fluctuations. Contact us for latest quote.
Available Packaging Options
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25 kg HDPE Bag (standard)
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50 kg Drum
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Bulk IBC Tanker (on request)
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Private labeling & OEM packaging options available
Common Names for Caustic Soda
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Sodium Hydroxide
-
Lye
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NaOH
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White Caustic
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Caustic Alkali
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FAQ: Frequently Asked Questions
Q1: What is caustic soda used for?
A1: Caustic soda, or sodium hydroxide (NaOH), is widely used in industries for soap making, paper production, water treatment, drain cleaning, and chemical manufacturing.
Q2: Is caustic soda the same as baking soda?
A2: No, caustic soda (sodium hydroxide) is a strong alkali, while baking soda (sodium bicarbonate) is a mild base used for cooking and cleaning.
Q3: How is caustic soda made?
A3: Caustic soda is produced through the electrolysis of brine (salt water), which also yields chlorine and hydrogen gas as byproducts.
Q4: What are the industrial applications of caustic soda?
A4: Industries use caustic soda for manufacturing textiles, detergents, aluminum, paper, petroleum refining, and cleaning solutions.
Q5: Is caustic soda dangerous to handle?
A5: Yes. It is highly corrosive and can cause burns. Always use gloves, goggles, and proper ventilation when handling it.
Q6: What is the pH level of caustic soda?
A6: Caustic soda has a pH of around 13 to 14, making it one of the strongest alkaline substances.
Q7: Can caustic soda be used for cleaning drains?
A7: Yes, it’s effective in unclogging drains by breaking down grease, hair, and other organic materials. Use with caution.
Q8: Is caustic soda safe for household use?
A8: When diluted properly and used responsibly, it can be used for cleaning, but it should be stored away from children and pets.
Q9: Where can I buy caustic soda in bulk?
A9: Caustic soda can be purchased in bulk from chemical suppliers, industrial distributors, or online platforms like DMK, Amazon or IndiaMART.
Q10: How do you store caustic soda safely?
A10: Store in a cool, dry, well-ventilated area in airtight containers. Avoid exposure to moisture, which causes it to react.
Q11: What are the chemical properties of caustic soda?
A11: Sodium hydroxide is a white, odorless solid that readily absorbs moisture and reacts exo-thermically with water.
Q12: What precautions should be taken while using caustic soda?
A12: Wear protective gloves, eye protection, and avoid inhaling vapors. Always add caustic soda to water—not the other way around.
Q13: Can caustic soda be used in soap making?
A13: Yes, it’s a primary ingredient in cold-process soap making, where it reacts with fats to form soap and glycerin.
Q14: How does caustic soda react with aluminum?
A14: It reacts with aluminum to release hydrogen gas, which can be explosive. This reaction should be avoided unless controlled.
Q15: What industries rely heavily on caustic soda?
A15: Textiles, paper, petroleum, chemical manufacturing, and water treatment industries all use caustic soda extensively.
Q16: Is caustic soda environmentally friendly?
A16: While effective industrially, caustic soda must be handled and disposed of carefully to avoid environmental damage.
Q17: How to neutralize caustic soda safely?
A17: Caustic soda can be neutralized with weak acids like vinegar (acetic acid) or citric acid under controlled conditions.
Q18: Can caustic soda be used in water treatment plants?
A18: Yes, it adjusts pH levels in water and helps remove heavy metals and other contaminants during treatment.
Q19: What is the price of caustic soda per kg in India?
A19: As of 2025, caustic soda prices in India range from ₹30 to ₹60 per kg, depending on purity and volume.
Q20: What’s the difference between caustic soda and washing soda?
A20: Caustic soda is sodium hydroxide (NaOH), a strong base, while washing soda is sodium carbonate (Na₂CO₃), a milder cleaning agent.