Yudu County, Ganzhou, Jiangxi, China sales3@ar-reagent.com 3170906422@qq.com
Follow us:



Sodium Tetraborate Decahydrate: Understanding the Chemical Inside and Out

What is Sodium Tetraborate Decahydrate?

Sodium Tetraborate Decahydrate, known widely as borax, pulls its roots from the mining world and surfaces everywhere from home cleaning aisles to metallurgy labs. In daily life, folks find borax grains or flakes tucked in laundry boosters, pool treatments, or as a raw ingredient for glazed ceramics. This compound gets its reputation not from flash but from its substance: a white, solid material that dissolves in water with an ease that surprises many first-timers. The structure houses ten water molecules for every molecule of sodium borate, locking water in crystal form like a sponge soaks up a spill. Anyone handling it will call out its slick, almost soapy texture, whether the product arrives as fine powder, chunky flakes, or rounded pearls.

Chemical Structure and Properties

The molecular formula reads Na2B4O7·10H2O. The atomic arrangement lays out two sodium ions, four boron atoms, seven oxygen atoms all held together, then ten more molecules of water tucked inside. This weaving of borate clusters gives the salt its crystalline nature. Set borax on a scale, and the density weighs in at about 1.73 g/cm3, a solid feel that stands out when poured from a bag. With a melting point at around 75°C, the crystals lose their water, shifting into the anhydrous form, which looks almost glassy. As a chemist in the workshop, I remember watching a batch of borax heat up in a beaker — its slowly bubbling water gave away the transformation that textbooks promised.

Specifications and Physical Forms

Suppliers will ship borax in several physical forms. The powder flows easily between the fingers and finds a home in cleaning agents. Flakes or crystals appear clear when held to the light and become slippery as soon as they get wet, which happens fast because borax loves water. In solid or pearl form, measurements by the liter make sense if you pack it densely, but weight remains the better guide for accuracy. As a solution, it turns clear, making it simple to measure and mix for use in industrial processes, especially glassmaking and metal soldering.

HS Code and Global Trade

Trading sodium tetraborate decahydrate happens under HS Code 2840.11 for customs declarations. This code links every shipment to international chemical regulations and lets importers check incoming raw material safely and efficiently. In my experience working with regulatory teams, tracking by HS Code reduces confusion when dealing with large orders, paperwork, and cross-border trade compliance. It ensures safety data sheets match what arrives at the warehouse since chemical identity stays consistent worldwide.

Safety, Hazards, and Human Contact

Every chemical has two faces — what it can do for humans and what it can do to humans. Touching borax won’t cause immediate burns, but inhaling too much powder can irritate lungs and throats, especially in a small, dusty space. Labels flag sodium tetraborate decahydrate as hazardous to aquatic life, so cleaning up spills with care matters. Children and pets shouldn’t handle it in raw form as repeated hand-to-mouth contact, accidental ingestion, or even skin contact for extended periods might cause health troubles. Wearing gloves and working in a well-ventilated space minimize risk, and proper storage in sealed containers stops it from absorbing moisture in humid warehouses.

Applications in Industry and Daily Life

Chemists and technicians recognize borax as both a material and a solution — a builder in soaps, a water softener, and a pH buffer. Metalworkers use it for flux welding, thanks to its ability to trap impurities. Glassmakers value how it promotes even coloration and clarity. Outside heavy industry, folks reach for borax in slime crafts, pest control, or restoring antiques. When my neighbor tried tackling an ant problem in his kitchen, he mixed borax powder with sugar and left small traps under sinks; the difference surprised him in days. Even then, safety reminders must show up each time someone buys borax for home use: not for consumption, handle with respect, and keep away from unsupervised hands.

Meeting Evolving Needs While Maintaining Safety

In today’s market, demand for raw materials like sodium tetraborate decahydrate keeps ticking upward. Factories and laboratories across the globe depend on stable supply and quality certification. Large-scale users expect batch records to confirm that physical properties, like density or purity, line up with the published specs. As digital data tracking becomes routine, both producers and users share records for traceability, helping quickly isolate any supply chain issues or recalls. Modern life leans on chemicals like borax; protecting people and the environment while using them requires steady vigilance, transparent labelling, and robust education about hazards at every point in the supply chain.