WHAT DETERMINES SCHOOL CHALK TO BE NON-TOXIC AND DUSTLESS??

WHAT DETERMINES SCHOOL CHALK TO BE NON-TOXIC AND DUSTLESS??
THE HIDDEN FACTS THAT EVEN BIG MANUFACTURERS DIDN'T KNOW.
Read below or watch the Video
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We are located at Komamboga-kumukaaga along Gayaza Road
How Non toxic SCHOOL CHALK is Made
Background
Chalk used in school classrooms comes in slender sticks approximately .35 of an inch (nine millimeters) in diameter and 3.15 inches (80 millimeters) long. Lessons are often presented to entire classes on chalk-boards (or blackboards, as they were originally called) using sticks of chalk because this method has proven cheap and easy.
Note: We supply New Chalk Making Machines and as well repair the used ones that seem to be in poor working conditions.
Raw Materials
The main component of chalk is calcium carbonate (CaCO 3 ), a form of limestone. Limestone deposits develop as coccoliths (minute calcareous plates created by the decomposition of plankton skeletons) accumulate, forming sedimentary layers. Plankton, a tiny marine organism, concentrates the calcium found naturally in seawater from .04 percent to 40 percent, which is then precipitated when the plankton dies.
The Manufacturing
Process
To make white classroom chalk, the manufacturer adds water to form a thick slurry with the consistency of clay. The slurry is then placed into and extruded from a die-an orifice of the desired long, thin shape. Cut into lengths of approximately 24.43 inches (62 centimeters), the sticks are next placed on a sheet that contains places for five such sticks. The sheet is then placed in an oven, where the chalk cures for four days at 188 degrees Fahrenheit (85 degrees Celsius). After it has cured, the sticks are cut into 80 millimeters lengths.
Making colored classroom chalk
7 Pigments (dry, natural, colored materials) are mixed in with the calcium carbonate while both are dry (the procedure is similar to sifting flour and baking powder together before adding liquid, as in a cake recipe). Water is then added to the mixture, which is then baked in the same manner as white classroom chalk.
Quality Control
Chalk that is intended for the classroom must undergo stringent tests in order to perform well and be labeled nontoxic. All incoming materials are tested for purity before being used. After the chalk has been made into sticks, one stick from each batch is selected for tests. The density and break strength of the sample stick are determined. The sample is then used to write with, and the quality of the mark is studied.
The Future
Many people consider using chalk and chalk-boards to present material outdated. Some experts claim that teachers have stubbornly resisted new technologies that could improve teaching-and eliminate the chalkboard entirely. A study which recently investigated whether teaching with overhead projectors was more effective than using chalkboards concluded that chalkboards were more interactive, progressive, and fruitful.
Need to Start Business in School Chalk Production,
Where To Learn More
Books: KISA PROJECTS training manuals/ e-Book: Cost ugx50'000
Physical Training: Kisa Projects training center located at Komamboga-kumukaaga along Gayaza Rd.
You can as well order for special training and get trained from your home.
Training fees: ugx100'000
Duration: 4 hours a single day and you can get started on.
Social Media Learning Platforms
Facebook: @kisaprojectsafrica
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KZbin: @kisaprojectsafrica
Find more: #kisaprojectsafrica.
We also supply new chalk making Machines and as well repair the used ones that seem to be in poor working conditions.
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[@satyambhujan230]

Hello. Your mold seems very interesting. Simple and easy. How much its price ? Do you ship to Mauritius ? How much time does it take for the chalk to solidify in the mold? Do you use oil as the machine lubricant ?

[@Theworldtv123]

How much is this machine?do u teach it?

[@mosesmwenda9270]

How much is the machine in USA Dollar?

[@Meivel7]

How to buy chalk mold

[@smartmalingapasi]

How much is the book or PDF

[@usded1827]

Price of the mould please

[@abotsijohnsonkelin512]

Can I get the cost of this machine

[@ibrahimzerbo2397]

How are you

[@sunithasunitha406]

Price...

[@preciousbagala5139]

How much does the chalk machine cost bytheway..? I will email you for contact information details on that too. I have heard about your trainings too infact lam reading much about your projects on internet & learning from your website teachings. I actually have a family member who came for the Laundry Bar soap training at Komamboga kumukaaga Gayaza road..🙂. We wanna begin our production making too as per your training...l have more questions & requests l will be in contact with you guys. Thanks for the great work👌👍👏👏🙏

[@kisaprojects6771]

You're welcome and thank you for choosing KISA PROJECTS

[@ibrahimzerbo2397]

I want the machinery

[@yanweining402]

WhatsApp/WeChat:008615137173100 Email:[e-mail] Skype：[e-mail] We are an Alibaba machine seller.We produce a lot of food machines, you can contact me to buy

[@DanDan-kx4zv]

how can i get the book?

[@edithtoualis7002]

I want to but this machine how much thé chiping in ivory cost

[@ibrahimzerbo2397]

Hi my friend

[@kisaprojects6771]

Hello dear

[@ibrahimzerbo2397]

What is your country

[@kisaprojects6771]

UGANDA

[@justinemutemba8406]

I need your line sir.I would like to have this machine

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