Drilling Liquid Potassium Acetate
CAS NO.: 127-08-2
Molecular Formula: CH3COOK
Molecular Weight: 98.14
Character: Colorless transparent liquid, slightly sour.
Usage: It is used snow & ice melting agent, fertilizer and oilfield drilling.
Package: 1000L IBC tank or Flexibag.
Storage: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
- Product Description
Drilling Liquid Potassium Acetate for Oilfield Drilling — High-Purity Shale Inhibitor Solution
Drilling Liquid Potassium Acetate (CAS No. 127-08-2) is a high-performance, chloride-free aqueous brine solution engineered specifically for the oil and gas industry. The product is a colourless clear liquid with somewhat sour flavour. This product is produced by Shanxi Zhaoyi Chemical Co., Ltd., founded 1988, has almost 30 years expertise in acetate manufacture. It possesses fluid densities from 1.25 to 1.38 g/cm3, thermal stability beyond 150°C and freezing point decrease to -60°C. Its production capacity is at 150,000 tonnes a year, with a flexible IBC/Flexibag packaging, which guarantees a constant supply around the globe for drilling operators.

Technical Specifications
Parameter | Specification | Test Method |
Content (CH3COOK) | ≥50-60% | Titration |
Appearance | Colorless transparent liquid | Visual |
pH Value | 7.5-9.2 | pH meter |
Density Range | 1.25-1.38 g/cm³ | Hydrometer |
Ferrum (Fe) | ≤0.002% | ICP-AES |
Arsenic (As) | ≤0.0004% | AAS |
Sulfate | ≤0.05% | Gravimetric |
Heavy Metal (Pb) | ≤0.01% | AAS |
Chloride | ≤0.01% | Titration |
Thermal Stability | >150°C (300°F) | TGA |
Freezing Point | Down to -60°C | Cryoscopy |
Molecular Weight | 98.14 g/mol | - |

What Is Drilling Liquid Potassium Acetate and Why Does It Matter?
Wellbore stability and environmental compliance are two of the biggest problems in today’s oilfield operations. Traditional halide brines, such as potassium chloride (KCl) or calcium chloride, corrode, harm delicate formations and are increasingly subject to offshore discharge laws.
Drilling Liquid Potassium Acetate solves these problems at the source. Molecular formula is CH3COOK and molecular weight is 98.14. The liquid formulation adds potassium ions (K⁺) directly to the mud system to decrease clay hydration and swelling without introducing chloride contamination.
That makes it a better, more sustainable option for today’s well operations, particularly when environmental compliance and equipment lifetime are non-negotiable.
Key Performance Properties
Understanding the physicochemical characteristics of this product allows you to confidently purchase for complicated drilling situations.
Control of Density and Pressure
The solution may be used at fluid densities from 1.25 to 1.38 g/cm3 which enables reliable hydrostatic pressure control without the need of insoluble weighing agents. This helps keep your reservoir cleaned and decreases the possibility of formation damage.
Freezing and thermal stability
Stability over 150°C means you keep a good rheology profile in deep or high temperature wells. At the same time, the freezing point dip down to -60°C makes this product important in arctic conditions, subsea risers, and cold weather surface storage systems.
Alkaline Buffering System
The fluid has a pH range of 9.0–11.0 and actively buffers your mud system against acidic gas influxes like CO₂ and H₂S. It preserves polymer performance and drill string integrity without the need for any extra chemical treatment.
Self-Lubricating
Liquid potassium acetate drilling mud provides an inherent lubricity to the fluid system, unlike many brine solutions. This reduces the torque and drag on the drill string, minimising mechanical wear and improving overall drilling efficiency.

Applications in Oilfield Drilling Operations
This device is used in a number of high stakes B2B drilling situations. Each application takes use of a distinct mix of the physical and chemical features of the product.
Inhibitive Drilling Fluids for Reactive Shales
Borehole instability is a severe problem when your formation has substantial smectite or illite clay concentration. It is used as a potassium acetate shale inhibitor solution in High Performance Water Based Muds (HPWBM) to reduce clay hydration, swelling and accretion. The outcome is a far more stable wellbore with performance similar to oil-based fluids but without the environmental imprint.
Solids Free Completion and Workover Fluids
Formation deterioration directly affects the production rates in the reservoir sections. The fluid is free of solid weighing ingredients and so acts as a clean finishing fluid which minimises the skin impact and maintains natural permeability. Your reservoir is productive from the first day.
Cold Climate and Arctic Drilling Programs
In cold locations such as the North Sea or Canadian basins, this chemical acts as both a freeze protectant and a density control. It inhibits fluid gelling in riser lines and surface tanks, keeping your business functioning safely under severe cold.
Drilling Liquid Potassium Acetate vs Other Products
Feature | Drilling Liquid Potassium Acetate | Sodium Chloride Brine | Calcium Chloride | Potassium Chloride |
Maximum Density | 1.38 g/cm³ | 1.20 g/cm³ | 1.39 g/cm³ | 1.17 g/cm³ |
Freezing Point | -60°C | -21°C | -55°C | -10°C |
Thermal Stability | >150°C | ~100°C | ~120°C | ~110°C |
pH Range | 7.5-9.2 (Alkaline) | 6.5-8.0 | 6.0-8.5 | 6.5-8.0 |
Corrosion Risk | Low | High | Very High | Moderate |
Lubricity | Excellent | Poor | Poor | Fair |
Environmental Impact | Biodegradable | Moderate | Moderate | Moderate |
Formation Damage | Minimal | Moderate | High | Moderate |
Cost-Effectiveness | Premium | Economy | Moderate | Moderate |
Quality Control and Documentation
For procurement engineers and HSE teams, consistent quality across every batch is essential. Shanxi Zhaoyi Chemical applies a rigorous QC framework covering:
- Assay/Concentration — Verified via titration to confirm potassium acetate content matches specified grades (50%, 60%, or higher)
- Specific Gravity @ 20°C — Monitored with high-precision hydrometers for hydrostatic compliance
- pH Measurement — Reviewed to confirm alkalinity is within the 9.0–11.0 range
- Insoluble Matter — Must remain below 0.1% to prevent pore plugging in reservoir sections
- Heavy Metal Analysis — Conducted via ICP-MS to verify compliance with EPA and REACH standards, including low levels of lead, arsenic, and mercury
Every batch is supported by a Certificate of Analysis (COA) and multilingual MSDS documentation. On-site factory audits are welcome and supported.
Certifications & Compliance
Shanxi Zhaoyi Chemical maintains internationally recognized management system certifications, giving you confidence in both product quality and supply chain integrity.
- ISO 9001 — Quality Management System
- ISO 14001 — Environmental Management System
- ISO 45001 — Occupational Health and Safety Management System
- Kosher Certification
- Halal Certification (applicable food-grade products)
Environmental compliance is part of the industrial process. The plant is fitted with environmental protection equipment and the product is rapidly biodegradable, with little COD and BOD effect, and is commonly authorised for disposal where oil based muds are forbidden.

Packaging, Storage, and Supply
The product is supplied in 1000L IBC tanks (or Flexibags) for convenient bulk handling and worldwide delivery. Standard manufacturing lead time of 5-7 working days, speedy filling and 24 hour delivery of in stock orders.
Storage: store in a dry, ventilated facility, away from heat and moisture. Store apart from harmful chemicals Always handle with care during travel to avoid damage to container.
Flexitank and IBC logistics are supported through long-term partnerships with international freight forwarders. FOB, CIF, and DAP trade terms are all available.

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FAQ
Q:How does product compare to Potassium Chloride (KCl)
A: KCl is less expensive, however potassium acetate is more environmentally friendly (chloride free), has much lower corrosion rates on tubulars and greater solubility at high fluid densities. This is the first option for ecologically sensitive wells or projects with a high risk of corrosion.
Q: Compatibility of liquid potassium acetate drilling mud with popular drilling polymers
A: Yes. It is compatible with Xanthan Gum, PAC and PHPA well. Unlike calcium based brines it does not precipitate polymers - and typically improves their thermal stability at high temperatures.
Q: What is the environmental profile for breakdown of this product?
A: It is easily biodegradable and has minimal COD and BOD effect. It is a solid option for ESG orientated drilling projects and is approved for disposal in many offshore and onshore regions where oil-based muds are forbidden.
Q: Is the fluid recoverable and reusable?
A: Sure. It is a stable, solids free brine that may be recovered, filtered and re-weighted for use on succeeding wells. This will enhance the overall economics of the project and minimise the amount of chemical waste on site.
Q: How does a potassium acetate shale inhibitor solution respond to acid gas influxes during drilling?
A: Its natural alkaline nature (pH 9.0–11.0) helps to neutralise small amounts of CO₂ and H₂S, preserving the drill string from quick acid corrosion and keeping the polymers working well without the addition of further chemicals.
Q: What concentrations do you provide and can they be tailored?
A: Standard supply concentrations are 50-75% w/w. We provide custom concentrations, formulas and container forms to meet your unique well design, formation type or area climatic conditions.
Contact Us
Ready to request a Drilling Liquid Potassium Acetate quote or technical datasheet? Email sxzy@sxzhaoyi.com — our team responds within 2 hours.
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