Calcium Hydroxide (Food Grade)
Calcium Hydroxide (Food Grade), also known as Slaked Lime or Hydrated Lime, is an inorganic compound with the chemical formula Ca(OH)₂. It is produced by adding water to calcium oxide (quicklime) in a controlled process called slaking.
This compound appears as a fine white, odorless powder and is widely used in the food processing industry as an acidity regulator, pickling agent, and calcium fortifier. Food grade calcium hydroxide is manufactured under strict standards such as FSSAI, BIS, ISO, and USP, ensuring it is safe for human consumption.
Due to its high purity, controlled heavy metal content, and stable chemical properties, it plays an important role in several traditional and modern food applications.
Hydrated Lime for Construction Industry
Chemical Information
| Property | Details |
|---|---|
| Chemical Name | Calcium Hydroxide |
| Molecular Formula | Ca(OH)₂ |
| Molecular Weight | 74.09 g/mol |
| CAS Number | 1305-62-0 |
| Appearance | White, fine powder |
| Taste | Alkaline |
| Density | 2.24 g/cm³ |
| Melting Point | 580°C (decomposes) |
| Solubility | Slightly soluble in water |
| pH (1% solution) | ~12.4 |
Product Specifications
Food grade calcium hydroxide manufactured by Vigyan Lime follows strict quality parameters to ensure purity and safety.
| Parameter | Specification |
|---|---|
| Purity | Minimum 95% |
| Particle Size | Passes 200 mesh |
| Moisture | Max 1% |
| Arsenic | Max 1 ppm |
| Lead | Max 2 ppm |
| Appearance | White odorless powder |
| Shelf Life | Up to 24 months |
Why Food Grade Calcium Hydroxide is Important in the Food Industry
Food manufacturers use calcium hydroxide because of its ability to control acidity, improve texture, and increase calcium content.
Key Benefits
✔ Improves food texture and firmness
✔ Helps regulate pH levels in foods
✔ Used as a natural calcium fortifier
✔ Supports food preservation and stability
✔ Safe for consumption when produced under food grade standards
Because of these properties, calcium hydroxide has become an essential ingredient in many food manufacturing processes worldwide.
Major Food Industry Applications
1. Pickling Agent
Calcium hydroxide is commonly used in pickling vegetables such as cucumbers and peppers. It helps maintain the crisp texture of pickled foods.
2. Acidity Regulator
It is used to control the pH level in processed foods, helping maintain flavor and stability.
3. Calcium Fortification
Food manufacturers add calcium hydroxide to increase calcium content in products, improving nutritional value.
4. Traditional Food Processing
In many cultures, calcium hydroxide is used in traditional food preparation methods to enhance taste, texture, and digestibility.
5. Food Additive
It acts as a processing aid and stabilizer in several food products.
Other Industrial Uses of Calcium Hydroxide
Although this grade is suitable for food applications, calcium hydroxide is also widely used in other industries.
Environmental Uses
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Water treatment
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Wastewater treatment
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Effluent treatment
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Flue gas treatment
Chemical Industry
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Manufacturing citrates and nitrates
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Plastic stabilizers
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Paints and coatings
Agriculture
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Soil pH adjustment
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Crop protection applications
Packaging & Storage
Our Food Grade Calcium Hydroxide is available in secure packaging to maintain product quality.
Packaging Options
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25 kg HDPE bags with inner liner
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50 kg HDPE bags
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Custom packaging available
Storage Guidelines
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Store in a cool and dry place
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Keep away from direct sunlight
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Ensure packaging remains tightly sealed
Under proper storage conditions, the product has a shelf life of up to 24 months.
Key Features of Food Grade Calcium Hydroxide
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High purity (minimum 95%)
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Free-flowing fine powder
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Long shelf life
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Odorless and stable
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Low heavy metal content
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Compliant with food safety standards
Slaked Lime in Water Treatment
Frequently Asked Questions (FAQs)
What is food grade calcium hydroxide used for?
It is mainly used as an acidity regulator, pickling agent, and calcium fortifier in food processing.
Is calcium hydroxide safe for human consumption?
Yes, when produced according to FSSAI, BIS, ISO, and USP food grade standards, it is safe for food applications.
What does calcium hydroxide look like?
It appears as a white, fine, odorless powder that is slightly soluble in water.
How should calcium hydroxide be stored?
It should be stored in sealed packaging in a cool, dry environment away from moisture and sunlight.
What is the shelf life of food grade calcium hydroxide?
Typically 24 months when stored properly.
Food Grade Calcium Hydroxide Manufacturer in India
Vigyan Lime is a trusted manufacturer and supplier of high purity food grade calcium hydroxide for food processing, pharmaceuticals, and industrial applications.
Manufacturing Units
Jodhpur & Nagaur (Rajasthan)
Udaipur (Rajasthan)
Haldwani (Uttarakhand)
Sataun (Himachal Pradesh)
Contact
Vigyan Lime
G-37, Race Course
Dehradun, Uttarakhand 248001
info@vigyanlime.com
+91-95685-01110, +91-95688-01110, +91-98370-55678
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