Dustless Chalk Powder is a processed variant of Gypsum Powder. Gypsum is a natural mineral and is a comparatively soft sulfate mineral. It is mainly composed of calcium sulfate dihydrate (chemical formula is CaSO4·2H2O). Gypsum is a soft mineral which looks either white or has a whitish-grey tinge.
Price : INR 12,000 - 14,500 per Metric Tonne (1000 kg)
Formula : CaSO4·2H2O(Calcium (Ca): 29.4%, Sulfur (S): 23.5%)
Packaging : 20kg, 25kg, 30kg, 38kg and 40kg
Minimum Order Quantity : 5 Metric Tonne (5000 kg)
Transport : Cargo (by ship), Road, Train
Dustless Chalk Powder is a processed variant of Gypsum Powder. Gypsum is a natural mineral and is a comparatively soft sulfate mineral. It is mainly composed of calcium sulfate dihydrate (chemical formula is CaSO4·2H2O).
Gypsum is a soft mineral which looks either white or has a whitish-grey tinge. On a microscopic level, it is made up of countless tiny crystal-like structures.
The deposits of gypsum are mainly uncovered in deltas and other places that are submerged for prolonged periods of time. Once the raw form of gypsum is mined, it is cleaned, and then dried and heated.
After it stabilizes, it is crushed and sifted to form a powder. This powder is further treated to get Dustless Chalk Powder.
This powder is used in various applications, the most prominent being in the manufacturing of dustless chalk sticks for blackboards in schools and other similar establishments.
When the gypsum rocks are initially supplied with heat, the water molecules trapped in it are made to be released, and we get anhydrous gypsum as the end product.
Gypsum also crystallizes in the form of tiny translucent selenite crystals and forms a hydration product of an anhydrite.
Chemical Formula : CaSO4.2H2O (Calcium (Ca): 29.4%, Sulfur (S): 23.5%)
Medicine: Dustless Chalk Powder is used in the processing and manufacture of various medical protective equipment.
It is used as a filler in plasters, bandages and gauzes for its dustless properties. It is also used to make surgical markings and pointers.
Dustless Chalk Sticks: Dustless Chalk Powder is used in the manufacture of Dustless Chalk Sticks. These sticks are made by compressing the Dustless Chalk Powder into small, cylindrical sticks. To achieve a sturdy shape and to maintain grip, it is coated with a layer of shellac.
These Dustless Chalk Sticks are used extensively in schools and colleges on the blackboard, as unlike regular chalk, it does not cause dust clouds.
This is beneficial for people with respiratory problems as dust from regular chalk could pose as an irritant for their respiratory systems.
Dustless Chalk Powder should be stored in a cool, dry place, completely free of moisture and excessive heat. It is non-hazardous and non-flammable.
Shelf Life : The shelf life of Dustless Chalk Powder is around six (6) months to two (2) years.
Note: The given information is derived from various test reports and external references. The buyer can test a trial sample before placing bulk orders. Since the product is a derivent of a naturally-occurring mineral, the purity may vary by a factor of ± 5%.
I ordered 20 Tons of Dustless Chalk Powder and it arrived within 3 days, Thank you, Great Speed!
Review Rating: 4.8 / 5
Our Dustless chalk powder is easily dyeable and can be used to make chalk sticks of various different colours. The different colours can be obtained by the use of soluble dyes or by the addition of coloured chemical compounds to the chalk mix.
TThe Dustless Chalk Powder that we offer is safe to use. It is free from impurities and wayward dust particles. The chalk powder is further treated with government-approved chemicals. Hence, there is almost no chance of an allergic reaction being triggered.
Since we cater and supply raw materials to big and extensive industries, we do not have a limit on the maximum order that can be placed. We accept all orders from our customers and give an equal amount of high preference to all kinds of orders.