High Transparency Calcium Carbonate Caco3 For Paint Paper And Plastic Industry

High Transparency Calcium Carbonate Caco3 For Paint Paper And Plastic Industry

Calcium carbonate is a chemical compound with the formula CaCO3. The thermodynamically stable form of CaCO3 under normal conditions is hexagonal β-CaCO3. Calcite, aragonite and vaterite are pure calcium carbonate minerals. Industrially important source rocks which are predominantly calcium carbonate include limestone, chalk, marble and travertine.

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Unique Properties

CALCIUM CARBONATE

Physical Property

Typical aspect ratio 3
Specific Gravity 2.7
Refractive Index 1.6
pH 8-9
Mohs Hardness 3-4

Precipitated Calcium Carbonate

Purity

Apperance

300~2000meshes market

over 98.5%

good white powder

 

Specifications
Heavy (Ground) Calcium Carbonate is widely used as filler and improver.
Purity: 98%min.
Appearance: white powder.
Heavy calcium carbonate, also called ground calcium carbonate, is produced by natural superior calcite, which has high purity and whiteness. The size ranges from under 400 mesh which is called primary products, to 2000 mesh or above, depending on your requirement.
Heavy (Ground) Calcium Carbonate is widely used as filler and improver in plastic, paint, paper-making, rubber, feed, daily chemical, ceramics, adhesives and ink industry.

Function of calcium carbonat
Low heavy metal content, using high-quality natural calcite production, lead and arsenic content can be lower than 0.3, and has no sulfide; Manganese, aluminum, magnesium content is very low, processing for customers.

Certificate

Our factories have achieved ISO Certificate, 23 technologies have obtained national patents.

cerr1

Application

1. As preservative of wheat, apples, cabbage, dessert and others and food additive.
2. Be used in the production of dyes and dyeing industry: ultrafine active heavy calcium carbonate.
3. As adhesives and sealants: ultrafine active heavy calcium carbonate.
4. Be used in aper industry: superfine heavy calcium carbonate rubber industry.
5. Be used in Plastics industry: heavy calcium carbonate.

 INDEX NAME

standard A our test result

CaCo3  content ≥

98

98.4

PH value(10%soliquoid)

8.0-10.5

9

Particle size um(average)

--

3.0-4.0

Moisture Content ≤

--

0.3

Oil Absorption ml/100g ≤

--

38

Insoluble substance in HCL acid  %≤

0.2

0.1

activated rate %≥

95

98

Fe content ≤

0.1

0.08

Mn content, ≤

0.008

0.007

Residue 125um % ≤

0.01

0.008

Whiteness ≥

90

93

We provide ground calcium carbonate powder (GCC) from natural marble quarries, which has high purity and whiteness. Application for industries such as Paper, paint, ink, rubber, plastic, effluent treatment and others.
Our products are separated into grades with range of partical size from 7µm of fine powder of chip form, COATED and UNCOATED kinds.
- Uncoated fine powder, partical size: from 7 µm to 35µm.
- Coated Powder, particle size: from 7 µm to 30µm.

   CHEMICAL CONTENTS           PHYSICAL SPECIFICATIONS
CaCO3 content 98.50% Whiteness grade ≥98%
MgO 0.08% Brightness ≥96%
Fe2O3 0.02% Whiteness grade 9,10,11 >93%
Al2O3 0.3% Moisture contents 0.2%
SiO2 0.03% Density 2.7g/cm3
    Oil absorption 24g/100g CaCO3

Light calcium carbonate, another name is precipitated calcium carbonate or precipitated chalkchemical formula is CaCO3. It is made by chemical processing, its volume bysedimentation(2.4-28mL/g)is larger than heavy calcium carbonate(1.1-1.9 ml /g) do, which is produced by mechanical method. At room temperature(25℃) concentration to water shall be 8.7/1029 and the solubility is 0.0014 the pH value shall be 9.5-10.2. Light calcium carbonate is nontoxic odorless, and usually white, with a relative density of 2.7-2.9. it do bag range of application in civil construction and rubber industry and many other business.

Technical Parameter

Test Item 1250 Mesh Grade Liglit Calcium Caibonate Powder
CaCo3%(contei)t) 98%
PH Value 8.0-10.0
HCL insoluble% ≦0.1
Moisture% ≦0.2
Paiticle size 11um
Fe content% <0.008
Mn content <0.006
Whiteness(R457)% 95%
Oil absorption ml/100g <35
Coated rate% ≧90
Surface Treatment Complex Treatment
Appearance Wliite Powder

Calcium carbonate can be divided into heavy calcium carbonate, light calcium carbonate.
Heavy calcium carbonate is widely used in plastics, rubber, papermaking, coatings, feed, medicine, daily chemicals, glass, ceramics and other fields.

Light calcium carbonate is mainly used as a filler in rubber, plastics, papermaking, coatings, inks and other industries, and can be used in daily chemical products such as tooth powder, toothpaste, cosmetics, etc., and can also be used in organic synthesis, metallurgy, glass and asbestos in production.

Concrete and Cement

Rubber

Plastic

Papermaking

Paint

Coating

Print And Ink

Cable

Civil Work

Textile Industry

Steel Industry

Glass

The difference between heavy and light calcium

Both calcium carbonate light and calcium carbonate heavy are commonly used as fillers in the coating and plastics industry. The content of the first grade is 99.1% and that of the second grade is 97.9%. The difference between heavy and light calcium carbonate is as follows:
1. The main difference is that light calcium is used for fillers, welding electrodes, organic synthesis, etc. Heavy calcium is used for the production of anhydrous calcium chloride, cement, etc.
2. Ground calcium carbonate or heavy calcium carbonate is calcium carbonate, which is cheap because it is prepared by compressing calcite, and tends to settle when used in emulsioni paint compared with light calcium carbonate.Lightweight calcium carbonate, also known as precipitated calcium carbonate, was found to be progressively smaller in size, larger in oil absorption and higher in price.They are commonly used in latex paint fillers, with the use.
3. Heavy calcium is made by crushing ore, while light calcium is made by artificial synthesis. There is a large amount of coating.
4. Heavy calcium is stable, but relatively light calcium sinks easily.
Light calcium is better in the settlement, but the oil absorption is greater than heavy calcium, the price is generally more expensive than heavy calcium, although the stability is not as good as heavy calcium, but still have stability, even if the external wall paint, its dosage is also very large!

Chemical name: Precipitated calcium carbonate 
Molecular formula: CaCo3
Properties: white powder, tasteless and odorless, non-toxic,light, air stable, slightly hygroscopic.
Uses: Precipitated calcium carbonate is the most popular inorganic pigment, is widely used in rubber, paper, plastic adhesive, paint, ink, daily necessities, drugs and feed.

usage

Test Item

Index

Test Result

Standard

GB/T9281-2003

 

Calcium carbonate(CaCO3) % ≥

98

98.7

PH value

9.0-10.0

10.0

Volatile below 105°C % ≤

0.40

0.30

Particle size um(average)

3.0-5.0

3.0-5.0

Insoluble matter in hydrochloric acid % ≤

0.10

0.01

Sedimentation volume ml/g ≥

2.80

2.90

 Fe content%≤

0.08

0.001

Mn content , ≤

0.005

0.001

Residue 125μm Test sieve% ≤

0.005

0.001

Residue 45μm Test sieve% ≤

0.30

0.03

Whiteness %≥

90.0

96.70

Moisure content %≤

-

-

Result

Superior class

Heavy Calcium Carbonate is widely used as filler and improver.
Technical data for reference: heavy Caco3

Test Item

Index

 ZCC902

Standard

Conformable with HG/T 3249.1~3249.4-2013

CaCO3 W/%

97

 

Whiteness

94.5

 

D97/μm

24.5

 

Oil absorption(linseed oil)(g/100g)

26

 

105℃ volatile /%

0.18

 

Heavy metal(Pb) W/%

≤0.003

 

appearance

white powder

Mesh size

600

 

Packing & Loading Qty

25kgs/bag (27tons/20ft)

Packaging

Composite plastic woven bag, 25kgs/bag.

 

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Customer Vist & Exhibition

 

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Advantages of Calcium Carbonate
  • Brightness and Whiteness
    Brightness and Whiteness
    High transparency calcium carbonate enhances the brightness and whiteness of paints, coatings, and paper products.
  • Cost-Effective Filler Material
    Cost-Effective Filler Material
    Calcium carbonate is an affordable filler that helps reduce the overall production cost of paints, plastics, and paper products.
  • Enhanced Surface Finish
    Enhanced Surface Finish
    In paints and coatings, high transparency calcium carbonate improves the surface finish by providing smooth texture and better coverage.
  • Environmental Benefits
    Environmental Benefits
    Calcium carbonate is a naturally abundant and environmentally friendly material. It is non-toxic and biodegradable, making it an eco-friendly alternative to synthetic fillers.
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