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Hubercarb® G35

1 of 51 products in this brand
Hubercarb® G35 is a high purity, ultra-fine ground calcium carbonate produced from a high brightness marble deposit in Georgia for applications that require high brightness or pure tints. Carefully controlled particle distribution allows the material to be used in a wide range of applications including paints, coatings, PVC pipe, rubber, plastics, and construction building products.

Functions: Filler

Chemical Family: Calcium Salts, Carbonates, Mica

End Uses: Powder Coating, Varnishes

Particle Size: 3.2 - 3.2 microns

Oil Absorption: 18.5 - 18.5 g/100 g

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Name
CASE Ingredients Functions
CAS No.
471-34-1
EC No.
207-439-9
Technologies

Applications & Uses

Properties

Physical Form
Chemical Properties
ValueUnitsTest Method / Conditions
Calcium Carbonate96.0%-
Magnesium Carbonate2.5%-
Silica and Silicates0.4%-
Other1.1%-
Physical Properties
ValueUnitsTest Method / Conditions
Acid Solubility (in HCl)95 - 98.5%-
Brightness (Hunter reflectance)95.0%-
Compacted Bulk Density63lb/ft³ASTM C110
Loose Bulk Density51lb/ft³ASTM C110
Mesh size (+325) (45μm)0.005%-
Median Particle Size (Sedigraph®)3.2μ-
OIl Absorption18.5lbs oil / 100lbsASTM D281
Hegman Grind6.0--
Moisture0.2%ASTM D280
Water Demand58.0ml/100g-
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity2.7-ASTM D153
ColorWhite--
pH (Saturated Solution)9.4-ASTM D1208
Mineral Properties
ValueUnitsTest Method / Conditions
Hardness (Mohs)3--
Linear Expansion Coefficient4.3 x 10^-6°C-
Solubility (H₂O, 100°C)0.0035g/100ml-
Weight per Gallon (s.g. x 8.345)22.6lbs-
Particle Shape (Microscope)Irregular, uniaxial--
Refractive Index (Hand. Of Chem. & Phy)1.6--
Alkalinity (as NaOH)0.4mg/gmASTM D1208