Common Issues in Procuring Magnesium Chloride Hexahydrate – Summary one by Weifang Yuze Magnesium Chloride Supplier

Have you encountered the following problems when purchasing magnesium chloride hexahydrate? Below, Weifang Yuze Magnesium Chloride Supplier explains these issues and corresponding solutions:

Problem 1: Product Caking (including scaling substances dislodged during pipeline cleaning)

Magnesium chloride hexahydrate cakes mainly for the following reasons:

1. Inherent property: strong moisture absorption. Under high air humidity, a liquid film forms on crystal surfaces, causing particles to adhere to one another. Recrystallization occurs as moisture changes, forming crystal bridges and resulting in caking.

2. Packaging sealing performance. Most magnesium chloride suppliers use double-layer sealed packaging before delivery, with a heat-sealed inner bag as the primary barrier. However, handling during loading and stacking pressure in storage may damage the inner sealed bag.

3. Product-related factors determined by manufacturing processes. By-product magnesium chloride, for instance, is highly susceptible to caking. Product form also affects caking tendency: magnesium chloride hexahydrate powder cakes more readily than flakes under identical storage conditions.

Note: One special type of hard lump needs to be distinguished. Magnesium chloride plants periodically clean pipeline inner walls, and hardened residues stripped from pipelines are much harder than regular short-term caking and differ in color from standard products.

Solutions:

1. Caking of magnesium chloride hexahydrate is closely linked to impurity content. Clearly communicate your technical specifications to suppliers before procurement, as product quality varies greatly among manufacturers. Yuze factory specializes in medium and high-grade magnesium chloride products. Controlling impurity levels of purchased raw materials is the priority for caking prevention.

2. For long-distance shipments, especially sea freight which may take 2–3 months to reach customers, thickened inner liners are recommended. Custom PE outer packaging is available at Yuze factory.

3. Inspect packaging for damage during unloading at your facility and replace damaged packages promptly. Warehouses shall be kept dry and ventilated with controlled humidity. Minimize day-night temperature differences to prevent condensation. Use pallets to separate goods from the ground. Reduce stacking height to lower pressure on materials and shorten heavy-load storage periods. The warranty period for Yuze magnesium chloride products is normally 12 months, and certain grades can be stored for up to 24 months without caking.

4. The issue mentioned in the note originates from factory operation errors and can be settled via customer claims. Installing filters on filling equipment at the manufacturing plant can eliminate this problem.

Problem 2: Discrepancy between sample and bulk shipment (unstable batch indicators from magnesium chloride suppliers)

Have you experienced large quality gaps between submitted samples and bulk goods received?

Causes:

1. The supplier obtains samples from one factory but ships goods from another.

2. Insufficient production capacity forces the supplier to source goods externally.

3. Raw material fluctuations at the manufacturing plant. Alternating use of brine, by-product feedstock, native brine and acid-processed materials leads to wide variations in impurities (NaCl, sulfates, iron, heavy metals).

Solutions:

Specify upper and lower limits of technical indicators in contracts. Require COA for both samples and bulk deliveries.

Yuze magnesium chloride factory has never encountered the above issue with our clients. Some customers have maintained partnerships with us for over 10 years. We take every customer feedback seriously.

Weifang Yuze will keep publishing technical content about magnesium chloride hexahydrate and anhydrous magnesium chloride. Please follow Weifang Yuze Chemical. Feel free to contact us if you have any questions, and we will offer professional support.