High-Purity Choline Chloride Liquid (CAS 67-48-1)

Introduction to Choline Chloride Liquid

Choline Chloride Liquid is the aqueous form of choline chloride, an essential quaternary ammonium salt often classified as a water-soluble B-complex vitamin (Vitamin B4). Due to its extreme hygroscopicity in anhydrous form, it is industrially produced and supplied as a 60% or 70% aqueous solution. In biological systems, it acts as a vital methyl donor for the synthesis of phosphatidylcholine (lecithin) and acetylcholine, preventing fatty liver syndrome and promoting optimal growth in livestock.

Beyond agriculture, the liquid form is highly valued in the oil and gas industry as an exceptional clay stabilizer and shale inhibitor in hydraulic fracturing fluids, preventing wellbore collapse. Store in sealed, corrosion-resistant HDPE or stainless steel containers. While highly stable, prolonged exposure to extreme alkaline conditions (pH > 9) and high heat can cause gradual degradation into trimethylamine, releasing a strong fishy odor.

Key Features of Choline Chloride Liquid

• Superior bioavailability in feed. The liquid form disperses instantly and uniformly in liquid feed supplements or when sprayed onto solid carriers, ensuring maximum intestinal absorption in poultry, swine, and aquaculture.
• Excellent clay stabilization for oilfields. Strongly adsorbs onto negatively charged clay surfaces via cation exchange, inhibiting clay swelling and migration in shale formations during drilling and hydraulic fracturing operations.
• Cost-effective processing. Eliminates the energy-intensive spray-drying and carrier-blending steps required for powder production, offering a lower carbon footprint and highly competitive pricing for bulk industrial users.
• High purity and low impurities. Advanced continuous synthesis ensures minimal residual trimethylamine (TMA) and ethylene glycol, preventing off-odors and toxicity issues in sensitive feed and pharmaceutical applications.
• Free-flowing liquid handling. Easily pumped, metered, and automated in continuous dosing systems, reducing manual labor and dust exposure compared to handling bulk powders.

Choline Chloride Chemical & Physical Properties (70% Liquid)

Applications of Choline Chloride Liquid

Animal feed premix and liquid supplements: Dosed at 0.5–2.0 kg per tonne of complete feed (depending on species and growth stage). It is directly blended into liquid molasses-based feed supplements or sprayed onto corn cob/bran carriers to produce 60% powder. Essential for preventing perosis (slipped tendon) in poultry and fatty liver in swine.

Oilfield drilling and fracturing fluids: Added at 2–10 kg/m³ (0.5–2.0% w/v) to water-based drilling muds and slickwater fracturing fluids. The quaternary ammonium cation intercalates into clay lattice layers, providing superior shale inhibition and preventing formation damage in highly reactive water-sensitive reservoirs.

Industrial water treatment and biocides: Used as a biostatic agent and nutrient source in cooling water systems and wastewater treatment bioreactors. Also serves as a precursor for synthesizing choline-based deep eutectic solvents (DES) and ionic liquids for green chemistry extraction processes.

Human nutrition and pharmaceuticals: High-purity, low-TMA grades are encapsulated or formulated into energy drinks and prenatal vitamins to support cognitive function, liver health, and fetal neural tube development.

Storage & Safety Precautions for Choline Chloride Liquid

• Storage: Store in tightly sealed HDPE drums or IBC totes in a well-ventilated warehouse between 5–35 °C (41–95 °F). Protect from freezing: While the 70% solution has a depressed freezing point, prolonged exposure below -10 °C (14 °F) may cause crystallization or increased viscosity. If frozen, gently warm to 20–30 °C (68–86 °F) and agitate before use. Avoid contact with strong oxidizers and alkaline materials.
• Safety: Classified as a mild eye and skin irritant under GHS. Avoid splashing into eyes; wear chemical splash goggles and rubber gloves during drum pumping and transfer. In case of eye contact, flush with water for 15 minutes. Spills are slippery and non-toxic; wash down with copious amounts of water.
• Transport: Choline Chloride Liquid is Non-DG under IATA/IMDG/ADR. No UN number, no packing group. Ship in standard dry or general-purpose containers. Ensure drum bungs are tightly sealed to prevent leakage during ocean freight.
• QC note: Verify concentration via silver nitrate titration (Mohr method) or HPLC upon receipt. Check for the presence of trimethylamine (TMA) odor; a strong fishy smell indicates thermal degradation or poor synthesis control—reject the lot if TMA exceeds specification limits (typically < 50 ppm).

Choline Chloride FAQ

Q: What is the difference between 60% and 70% Choline Chloride liquid?

A: The 70% liquid is more concentrated, offering lower shipping costs per unit of active ingredient, but it is more viscous and prone to crystallization in cold climates. The 60% liquid is easier to pump in winter and is the standard concentration used for spraying onto corn cob carriers to manufacture 60% dry powder.

Q: My IBC tote of Choline Chloride liquid arrived with a strong fishy odor. Is it spoiled?

A: A slight amine odor is normal, but a pungent “rotten fish” smell indicates excessive free trimethylamine (TMA), usually caused by exposure to high heat (above 60 °C / 140 °F) during transit or alkaline contamination. Request a GC (Gas Chromatography) TMA analysis; if it exceeds 50 ppm, it may taint animal feed and should be rejected.

Q: Can I use the liquid form directly in dry feed pelleting?

A: Direct addition of liquid into dry mash feed is difficult and causes clumping. For dry pelleting, it is recommended to use Choline Chloride Powder (corn cob or silica carrier). If you must use liquid, it should be applied via a post-pelleting liquid coating system or pre-mixed into a liquid fat/molasses binder.