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Fracsal IV crosslinking additive consists of a specifically sized, sparingly-soluble borate crosslinking agent suspended in a carrier fluid with an extremely low aromatic content. The standard concentration for Fracsal IV is 1 to 3 gal per 1,000 gal of fracturing fluid with crosslink times ranging from 6 to 9.5 minutes depending upon the pH, temperature, and type of polymer-based fracturing fluid system. Fracsal IV packaging can be customized to meet specific requirements.

Functions: Crosslinking Agent

Chemical Family: Borates, Boron-based Compounds

End Uses: Fracturing Fluids

Features: Water Soluble

Technical Data Sheet
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Identification & Functionality

Industrial Additives Functions

Features & Benefits

Industrial Additives Features

Applications & Uses

Markets
Industrial Additives End Use

Properties

Color
Physical Form
Appearance
Tan Liquid
Dispersible in
Water
Environmental Properties
ValueUnitsTest Method / Conditions
Biological Oxygen Demand13.0mg/L
BTEX (S.W. 8260)Below detection limit of 1 ppb
Chemical Oxygen Demand33.0mg/L
LC50, 96-hour1000000.0ppm
Physical Properties
ValueUnitsTest Method / Conditions
Flash Point108.0°CASTM D93
Pour Point-27.0°CASTM D97
Specific Gravity1.15 - 1.20g/mL

Technical Details & Test Data

D50 - Microtox Testing
Test EC 20 EC 50 PASS/FAIL
MTX- Threshold 83 L/m3 (78 - 89) 250 L/m3 (246 - 263) not applicable
MTX - Confirmation @191L/m3 32% (20 - 51) >91% PASS

Crosslink Times At Various pH Values

FRACSAL IV - Crosslink Times At Various Ph Values

pH 7.5 8.5 9.5 10.5 11.5
Static Top, min:sec 10:55 10:38 8:37 9:58 18:41

 

Crosslink Time Test Parameters

Guar Base: 2% KCI
Polymer Concentration: 40 lb/1,000 gal
pH, adjusted with NaOH: 7.5-11.5
Viscosity, 300 rpm: 38-42 CP
Crosslinking Additive Concentration: 1.2 gal/1,000 gal
Temperature: 25°C (77°F)