precipitated calcium carbonate for leather

Product Overview

Description

precipitated calcium carbonate for leather

The specifications of Calcium Carbonate
CAS No.: 471-34-1 
Molecular Weight: 100.09 
Chemical Formula: CaCO3 
Synonyms: Carbonic acid calcium salt; calcite; aragonite; limestone 
Appearance: Odorless, hygroscopic white crystal or powder
Melting point, ° C: 825 (decomposition)
Density (20°C), g/cm3: 2.7~2.9

Specification	Calcium Carbonate for leather
CaCO3 content (Dry basis), %                    ≥	98
PH(10% Soliquit)	9
Moisture content, %                               ≤	0.5
Settling value,ml/g                                 ≥	2.6
Top Cut, μm                                      ≤	2.0
Average Grain(D50),μm                        ≤	0.08
Fe,%                                                  ≤	0.1
Mn,%                                                 ≤	0.006
Residues  45μm,%                            ≤	0.00
Whiteness ,%                                  ≥	97
Absorption oil Number (DOP), ml/100g	32
Activation,%	99
Appearance	POWDER

 

Characteristic

1.Identical grain size ,low oil absorption value.

2.To reduce the cost of products ; to make products have good foamed effect.

3.To enhance hardness,rigidity,size stability ,fire-retardantness,glossiness of products.

4.In rigid PVC products, it can accelerate gelation, enhance cold impact strength, eliminate plate out, and improve surface gloss.

 

Package and storage

1) 25kg/bag in kraft bag or poly woven bag,or addording to your demand/design.

2) Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage.

 

Note: Our “greatlion” calcium carbonate is well known among chinese market for its high quality.

we can offer all kinds of  Calcium Carbonate in different whiteness, purity, and high brightness, ultra-fine, according to your demand.

 

We hope to build long-term business with you in competitive price and high quality.