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Caustic Soda

Uses item details. Price when purchased online

Best seller RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb $23.74

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb
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current price $23.74

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb

4.5 out of 5 Stars. 6 reviews
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Overall pick Belle Chemical Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (2 Pound Jar) $15.99

Belle Chemical Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (2 Pound Jar)
current price $15.99

Belle Chemical Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (2 Pound Jar)

4.7 out of 5 Stars. 257 reviews
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Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 4 Lbs (Pounds) $27.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 4 Lbs (Pounds)
current price $27.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 4 Lbs (Pounds)

4.7 out of 5 Stars. 44 reviews
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Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 10 Lbs (Pounds) $43.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 10 Lbs (Pounds)
current price $43.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 10 Lbs (Pounds)

4.8 out of 5 Stars. 57 reviews

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (20 pound) $80.74

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (20 pound)
current price $80.74

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (20 pound)

5 out of 5 Stars. 25 reviews

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 6 Lbs (Pounds) $33.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 6 Lbs (Pounds)
current price $33.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 6 Lbs (Pounds)

5 out of 5 Stars. 15 reviews

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 12 Lbs (Pounds) $61.25

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 12 Lbs (Pounds)
current price $61.25

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 12 Lbs (Pounds)

4.3 out of 5 Stars. 3 reviews

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 24 Lbs (Pounds) $95.27

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 24 Lbs (Pounds)
current price $95.27

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 24 Lbs (Pounds)

5 out of 5 Stars. 1 reviews

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (10 pound) $49.99

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (10 pound)
current price $49.99

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (10 pound)

4.8 out of 5 Stars. 33 reviews
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Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 48 Lbs (Pounds) $194.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 48 Lbs (Pounds)
current price $194.99

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda lye 48 Lbs (Pounds)

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 4 Pack, 2.2 lb Each $79.99

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 4 Pack, 2.2 lb Each
current price $79.99

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 4 Pack, 2.2 lb Each

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Other options to consider

Duda Energy Red Hot Devil Lye - 99+% Pure Sodium Hydroxide From $25.45

Duda Energy Red Hot Devil Lye - 99+% Pure Sodium Hydroxide
Available in additional 6 options
From$2545

Duda Energy Red Hot Devil Lye - 99+% Pure Sodium Hydroxide

4.5 out of 5 Stars. 29 reviews

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 36 Lbs (Pounds) $146.99

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 36 Lbs (Pounds)
current price $146.99

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 36 Lbs (Pounds)

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 24 Lbs (Pounds) $98.99

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 24 Lbs (Pounds)
current price $98.99

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 24 Lbs (Pounds)

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 12 Lbs (Pounds) $53.95

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 12 Lbs (Pounds)
current price $53.95

Potassium Hydroxide (KOH),90% pure, Caustic Potash, Organic Soap making 12 Lbs (Pounds)

5 out of 5 Stars. 3 reviews

10 lbs Food Grade Sodium Hydroxide Lye Evenly-Sized Micro Pels Beads or Particles - 1 x 10 lb Bottle - Lye Drain Cleaner - HDPE container with resealable Child Resistant cap and handle $49.97

10 lbs Food Grade Sodium Hydroxide Lye Evenly-Sized Micro Pels Beads or Particles - 1 x 10 lb Bottle - Lye Drain Cleaner - HDPE container with resealable Child Resistant cap and handle
current price $49.97

10 lbs Food Grade Sodium Hydroxide Lye Evenly-Sized Micro Pels Beads or Particles - 1 x 10 lb Bottle - Lye Drain Cleaner - HDPE container with resealable Child Resistant cap and handle

5 out of 5 Stars. 23 reviews

Lehman's Sodium Hydroxide for Soapmaking, 2 Pound Resealable Bag of Lye Beads, NaOH, Do It Yourself Natural Bar Soap

Lehman's Sodium Hydroxide for Soapmaking, 2 Pound Resealable Bag of Lye Beads, NaOH, Do It Yourself Natural Bar Soap

Lehman's Sodium Hydroxide for Soapmaking, 2 Pound Resealable Bag of Lye Beads, NaOH, Do It Yourself Natural Bar Soap

5 out of 5 Stars. 1 reviews

Best seller RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb $23.74

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb
current price $23.74

RED CROWN Lye for Soap Making and Cleaning, Pure High-Test Drain Cleaner and Clog Remover, 2.2 lb

4.5 out of 5 Stars. 6 reviews
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Soda Ash - 10 Pounds $29.95

Soda Ash - 10 Pounds
current price $29.95

Soda Ash - 10 Pounds

Essential Depot Shea Melt & Pour - 8 lbs Shipped in a safety-sealed square pail with resealable lid and removable handle $74.97

Essential Depot Shea Melt & Pour - 8 lbs Shipped in a safety-sealed square pail with resealable lid and removable handle
current price $74.97

Essential Depot Shea Melt & Pour - 8 lbs Shipped in a safety-sealed square pail with resealable lid and removable handle

10 Lb Ultra Clear Glycerin Melt & Pour Soap Base Organic $65.99

10 Lb Ultra Clear Glycerin Melt & Pour Soap Base Organic
current price $65.99

10 Lb Ultra Clear Glycerin Melt & Pour Soap Base Organic

Pifito Honey Melt and Pour Soap Base, 5 lb

Pifito Honey Melt and Pour Soap Base, 5 lb

Pifito Honey Melt and Pour Soap Base, 5 lb

4.8 out of 5 Stars. 5 reviews

Pifito Clear Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Clear Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Clear Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

4.5 out of 5 Stars. 6 reviews

Pifito White Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito White Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito White Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Goats Milk Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Goats Milk Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Goats Milk Melt and Pour Soap Base (5 lb) │ Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

5 out of 5 Stars. 3 reviews

Pifito Charcoal Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies $30.99

Pifito Charcoal Melt and Pour Soap Base (5 lb)  Bulk Premium 100% Natural Glycerin Soap Base  Luxurious Soap Making Supplies
current price $30.99

Pifito Charcoal Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies

4 out of 5 Stars. 1 reviews

Pifito Organic Clear Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies $30.99

Pifito Organic Clear Melt and Pour Soap Base (5 lb)  Bulk Premium 100% Natural Glycerin Soap Base  Luxurious Soap Making Supplies
current price $30.99

Pifito Organic Clear Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies

Pifito Aloe Vera Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Aloe Vera Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Aloe Vera Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

4.3 out of 5 Stars. 4 reviews

Pifito Oatmeal Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Oatmeal Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Oatmeal Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

5 out of 5 Stars. 5 reviews

Pifito Mango Butter Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies $30.99

Pifito Mango Butter Melt and Pour Soap Base (5 lb)  Bulk Premium 100% Natural Glycerin Soap Base  Luxurious Soap Making Supplies
current price $30.99

Pifito Mango Butter Melt and Pour Soap Base (5 lb) Bulk Premium 100% Natural Glycerin Soap Base Luxurious Soap Making Supplies

5 out of 5 Stars. 1 reviews

Pifito Cocoa Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Cocoa Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Cocoa Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

5 out of 5 Stars. 2 reviews

Pifito Shea Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Shea Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Shea Butter Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

4 out of 5 Stars. 5 reviews

Pifito Shaving Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Shaving Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

Pifito Shaving Melt and Pour Soap Base (5 lb) │ Bulk Premium 100% Natural Glycerin Soap Base │ Luxurious Soap Making Supplies

5 out of 5 Stars. 1 reviews
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Highly rated by customers

FAQ

What is caustic soda, and what’s it also called?

Caustic soda is another name for sodium hydroxide, a strong alkaline compound commonly used in crafting and cleaning. You’ll often see it listed as lye, sodium hydroxide, or caustic soda—these terms typically refer to the same core ingredient.

  • Common labels on-site: sodium hydroxide, lye, caustic soda
  • Typical forms: beads, pearls, or flakes that dissolve in water

When shopping, focus on the intended use (for example, soap making or cleaning) and the package size that matches your project needs. Product pages generally outline form and use, which can help you choose confidently while staying within label directions.

What can I use caustic soda for at home?

Caustic soda (sodium hydroxide/lye) can support several household tasks when used as directed. On our site, it’s commonly purchased for soap making and is also offered in formulas labeled for drain cleaning and clog removal.

  • Crafting: Used in cold-process and other soap-making methods.
  • Maintenance: Some products are formulated for clearing buildup in drains (always follow the label).

Because it’s a powerful, corrosive base, always read and follow the product’s instructions, wear protective gear, and avoid mixing it with other chemicals. If you’re unsure whether it’s right for a task, check the product description and safety information before starting.

Is caustic soda dangerous, and how do I handle it?

Caustic soda is corrosive, so safe handling is important. With careful use, it can be a helpful ingredient for crafting and certain cleaning tasks.

  • Protective gear: Wear chemical-resistant gloves, eye protection, and long sleeves.
  • Work area: Use a well-ventilated space and a stable surface.
  • Handling: Measure carefully, avoid creating dust, and follow the label’s directions.
  • No mixing: Do not mix with other chemicals, including acids or bleach.
  • After use: Seal the container and wash tools separately from everyday items.

If accidental exposure occurs, follow the product’s first-aid guidance and consider contacting a medical professional. Keep out of reach of children and pets.

Where can I buy caustic soda on Walmart?

You can shop caustic soda on Walmart.com, typically within Arts, Crafts & Sewing and related categories. To find options quickly:

  1. Search: Try terms like “sodium hydroxide,” “lye,” or “caustic soda.”
  2. Filter: Compare package sizes (e.g., a few pounds up to bulk) and forms like beads.
  3. Availability: Check shipping, pickup, or delivery options; selection can vary by location.
  4. Details: Read product descriptions for intended use and handling information.

Select the size and form that fit your project, then choose the fulfillment option that works best for you. Product availability may change, so it’s a good idea to confirm your preferred option at checkout.

How should I store caustic soda after buying?

Proper storage helps maintain quality and supports safe handling.

  • Keep it dry: Store in a cool, dry place away from moisture and humidity.
  • Seal tightly: Close the lid securely after each use to reduce clumping.
  • Original container: Keep it in the labeled container so safety and directions are always on hand.
  • Safe placement: Store out of reach of children and pets, and away from incompatible chemicals.
  • Organization: Label the shelf or bin and avoid storing above eye level.

Always follow the storage guidance on the product label. If the container becomes damaged, consider transferring to a compatible, clearly labeled container per manufacturer directions to maintain safety information.

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