Hubercarb® G3 is a high-purity, ultra-fine ground calcium carbonate derived from a premium marble deposit in Georgia, specifically designed for applications requiring exceptional brightness and pure tints. The carefully controlled particle distribution ensures its versatility across a diverse range of applications, including paints, coatings, PVC pipe, rubber, plastics, and construction building products. This product delivers consistent quality and performance, making it an ideal choice for manufacturers focused on achieving superior results in their formulations.

Chemical Name: Calcium Carbonate

CAS Number: 1317-65-3

Labeling Claims: High Purity, Listed in California Prop 65, Odor-free

Features: Good Brightness, Good Tint Strength, High Tinting Strength, Improves Brightness

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Properties

Physical Form
Typical Physical Properties
ValueUnitsTest Method / Conditions
Median Particle Size3.2μSedigraph
Brightness95.0-Hunter reflectance
OIl Absorption18lb/100lbsASTM D281
Moisture Content0.2%ASTM D280
Water Demand57mL/100g-
Bulk Density (Loose)47lb/ft³ASTM C110
Bulk Density (Compacted)60lb/ft³ASTM C110
Solubility in Hydrochloric Acid95 - 98.5% -
Hegman Grind6--
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Physical StateSolid--
ColorWhite--
OdorOdorless--
pH (at 5% water suspension)8.4 - 10.2--
Density (at 20°C)2.7g/cm³-
Solubility in Water (at 20°C)1.3g/L-
Decomposition Temperature700 - 900°C-
Mineral Properties
ValueUnitsTest Method / Conditions
ColorWhite--
Alkalinity (as Sodium Chloride)0.4 mg/gASTM D1208
pH (of saturated solution)9.4 (of saturated solution)-ASTM D1208
Hardness (non-abrasive)3Mohs-
Solubility in Water (at 100°C)0.0035g/100mL-
Specific Gravity2.7-ASTM D153
Refractive Index1.6--
Weight (at s.g. x 8.345)22.6 lb/gal-
Linear Expansion Coefficient4.3 x 10⁻⁶/°C-
Chemical Analysis
ValueUnitsTest Method / Conditions
Calcium Carbonate96.0% -
Magnesium Carbonate2.5% -
Silica and Silicates0.4% -
Other1.1% -
Specifications
ValueUnitsTest Method / Conditions
Particle Size (at 45μm)0.005% -

Regulatory & Compliance

Packaging & Availability

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