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24 pieces cartons 18/7/30

Alum is a group of hydrated double sulfates of aluminum and other elements such as potassium or ammonium. It is widely used in water treatment, food processing, cosmetics, and pharmaceuticals. Below are the general specifications for different types of alum:

Common Types of Alum:

1. Potassium Alum (KAl(SO)12O) - Used in water purification, food, and cosmetics

2. Ammonium Alum (NHAl(SO)12HO) - Used in industrial and water treatment applications

3. Sodium Alum (NaAl(SO)12HO) - Used in food processing and baking powder

4. Ferric Alum (FeAl(SO)12HO) - Used in water treatment and paper manufacturing

Physical Properties:

Appearance: White, transparent crystalline solid or powder

Color: White or colorless (can be slightly yellow in ferric alum)

Odor: Odorless

Taste: Astringent and slightly sweet

Solubility: Soluble in water, insoluble in alcohol

pH (10% Solution): 3.0 - 4.0

Chemical Composition & Purity:

AlO (Aluminum Oxide): 15-18%

SO (Sulfate Content): 50-55%

FeO (Iron Oxide) (For Non-Ferric Alum): Max 0.01%

Water Insoluble Matter: Max 0.1%

Moisture Content: Max 5%

Purity: Min 99%

Microbiological Standards (For Food & Cosmetic Grade Alum):

Total Plate Count: Max 10,000 CFU/g

Yeast & Mold: Max 100 CFU/g

Coliforms: <10 CFU/g

E. Coli & Salmonella: Absent

Contaminants & Adulterants:

Heavy Metals:

Lead (Pb): <0.2 ppm

Cadmium (Cd): <0.1 ppm

Arsenic (As): <0.1 ppm

Mercury (Hg): <0.05 ppm

Pesticide Residues: Not detected

Artificial Additives & Preservatives: Must be absent

Applications of Alum:

Water Treatment: Used in coagulation and flocculation for purification

Food Industry: Used as a food additive (E522) in pickles, baking powder, and cheese processing

Cosmetics & Personal Care: Used in deodorants, aftershaves, and skin tightening products

Pharmaceuticals & Ayurveda: Used in antiseptic and astringent medicines

Paper & Textile Industry: Used for sizing paper and as a mordant in dyeing fabrics

Alum powder is a fine, white crystalline powder derived from aluminum sulfate compounds. It is widely used in water purification, food processing cosmetics, pharmaceuticals, and industrial applications. Below are the general specifications for alum powder:

Types of Alum Powder:

1. Potassium Alum Powder (KAl(SO)12HO) - Used in food, water treatment, and cosmetics

2. Ammonium Alum Powder (NHAl(SO)·12HO) - Used in industrial and textile applications

3. Sodium Alum Powder (NaAl(SO)12HO)-Used in baking powder and food processing

4. Ferric Alum Powder (FeAl(SO)12HO)- Used in water treatment and paper industries

Physical Properties:

Appearance: Fine, free-flowing powder

Color: White or colorless (ferric alum may appear yellowish)

Odor: Odorless

Taste: Astringent and slightly sweet

Mesh Size: 80-200 mesh (as per requirement)

Solubility:

Fully soluble in water

Insoluble in alcohol

pH (10% Solution): 3.0 - 4.5

Chemical Composition & Purity:

AlO (Aluminum Oxide): 15-18%

SO(Sulfate Content): 50-55%

FeO (Iron Oxide) (For Non-Ferric Alum): Max 0.01%

Water Insoluble Matter: Max 0.1%

Moisture Content: Max 5%

Purity: Min 99%

Microbiological Standards (For Food & Cosmetic Grade Alum Powder):

Total Plate Count: Max 10,000 CFU/g

Yeast & Mold: Max 100 CFU/g

Coliforms: <10 CFU/g

E. Coli & Salmonella: Absent

Contaminants & Adulterants:

Heavy Metals:

Lead (Pb): <0.2 ppm

Cadmium (Cd): <0.1 ppm

Arsenic (As): <0.1 ppm

Mercury (Hg): <0.05 ppm

Pesticide Residues: Not detected

Artificial Additives & Preservatives: Must be absent

Applications of Alum Powder:

Water Treatment: Used as a coagulant in purification processes

Food Industry: Used as a food additive (E522), in pickling, and baking powder

Cosmetics & Personal Care: Used in deodorants, aftershaves, and skin-tightening products

Pharmaceuticals & Ayurveda: Used as an antiseptic and astringent in medicines

Paper & Textile Industry: Used for sizing paper and as a mordant in fabric dyeing

Leather Industry: Used in tanning processes

Chemical formula KAl(SO ) 12HO
Molecular weight 474.388399
CAS 7784-24-9
EINECS 233-141-3
melting point 92
boiling point 330
appearance Colorless cubic crystal

Alum, also known as aluminum sulfate, is a chemical compound with the formula Al2(SO4)3. It is widely recognized for its versatile applications in various industries. Alum is commonly used as a coagulant in water treatment processes to clarify turbid water by removing suspended particles. Additionally, it has a history of use in pickling to crisp fruits and vegetables and as an ingredient in baking powder for leavening. Alum also finds use in cosmetics, textiles, and as a mordant in dyeing processes. Its astringent properties have made it a traditional remedy for various skin conditions. Overall, alum's ability to form solid precipitates and its diverse range of applications make it a valuable chemical compound in both industrial and household settings.

Features
1. Develop children's logical thinking ability.

2. Exercise cooperative skills and improve hands-on skills.

3. Enhance the ability to distinguish shapes and things.

4. Promote hand-eye coordination and stimulate sensory development.

5. Develop brain thinking and recognize different color

The pottery stone ore shown in the earlier photograph is a particularly high-quality special-grade material among our pottery stones. Pottery stones are generally finely crushed, and used as the material for ceramics, bone china, and sanitary ware (toilets, sinks, etc.).

Products are shipped out from our mine in sizes of <= 10 mm obtained by roughly crushing the stones. They are shipped in bulk or by filling flexible containers using large trucks.

Ammonia alum lumps and powder.

TUMI ISHI WOODEN BALANCING
Tumi ishi wooden balancing stones are a new take on the classic wooden building block. We believe toys can be both fun and inspire creativity and new ways of thinking.
The Tumi Ishi wood rocks are a simple sensory toy set that will offer children as young as two with a way to enhance their motor
skills in a soothing manner. The Tumi Ishi toys -- which translates to "piled stones" from Japanese -- draws inspiration from the traditional art form and come in sets of seven, 11, 17 and 22 to accommodate kids or adults with different preferences.

Crystal stones

Finished Stone

We supply premium-quality Alabaster Stone, sourced directly from a reliable high-grade mine. This natural translucent stone, typically white or lightly tinted, is ideal for luxury interior decoration, sculpting, lighting, and artistic applications.

Our alabaster features:

High purity and uniform color

Soft texture (Mohs hardness 1.5â??2), easy to carve

Excellent translucency, ideal for decorative use

Available in raw blocks, cut slabs, or customized forms

We offer consistent supply capacity, competitive pricing, and flexible delivery options (FOB or CIF). Suitable for importers, construction firms, and interior designers seeking unique, high-end natural stone solutions.

Custom orders and international shipping available.

Lime stone BUCHING 600x150mm chocolate