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Soda Ash

pH Control Agent

Product Description

Soda Ash (Na2CO3) is the common name for sodium carbonate, which has a molar mass of 105.9888 g/mol (anhydrous).

Soda ash is inexpensive and used as an economical method for removing soluble calcium. Magnesium is similarly precipitated as insoluble magnesium carbonate; however, a more effective treatment for magnesium hardness is caustic soda, which precipitates magnesium hydroxide.


Soda Ash is used to precipitate Calcium in make-up water or while drilling anhydrite stringers.

Provided the saturation level of the Calcium salt has not been exceeded, the amount of Soda Ash required to treat out the calcium can be approximated by 350 mg/L Calcium ions requires 1.0 kg/m³ of Soda Ash.

Soda Ash effectively and economically removes Calcium from anhydrite by precipitation as Calcium Carbonate. Over-treatment with Soda Ash can result in a Carbonate alkalinity and as consequent, excessive gel strength.


Widely available and economical source of carbonate ions to precipitate calcium while increase pH

Concentrate chemical:effectively removes calcium in most drilling fluids at small dosage

Effective flocculants for spud mud

Technical Data


White powder

Bulk density

0.9 g/cm3 Min


99.0% Min

Recommended Treatment

Add Soda Ash in concentration of 0.4-1.2 lb/bbl (1.0-3.0 kg/m³) to any system. Mix slowly through a jet mixer or sift slowly into the vortex of a high-speed stirrer.

Environmental Information

For information concerning environmental regulations applicable to Soda Ash, contact the Health Safety and Environmental Department.


Transportation of commodity name is not restricted by either international or CHINA regulatory agencies.

Safe Handling Recommendations

Utilize normal precautions for employee protection when handling chemical products. Use of standard PPE is recommended for employee comfort and safety. See Material Safety Data Sheet (MSDS) prior to use.

Package and Storage

25kg bags, jumbo bags or according to customer’s requirement.

Avoid high-intensity extreme pressure and prolonged exposure to strong sunlight. Keep container closed. Keep away from heat, sparks and flames.


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