Field Notes on strontium hydroxide: specs, sourcing, and real-world use

Short version: Best Strontium Hydroxide. Best Price. China FIZA Company. Contact them with any questions—seriously, they reply fast. If you’re shopping around, here’s what the industry is actually doing with strontium hydroxide right now, how the better vendors test it, and why small differences in moisture or carbonate matter more than the brochure admits.

What’s driving demand

In coatings and polymers, formulators lean on strontium hydroxide as a strong base/neutralizer and as a precursor to strontium soaps for complex greases (high drop points, good water resistance). Ceramics and specialty glass still pull steady volumes for basicity control. I’m also seeing niche requests from alkyd and polyester resin lines—neutralization is boring, but critical. And yes, it’s hygroscopic; so storage discipline is half the game.

Typical product specs (industrial grade)

How it’s made (condensed process flow)

Raw materials: celestite-derived SrCO3 or SrO → hydration with deionized water → hot filtration → crystallization to octahydrate → optional drying to anhydrous → milling and screening → QA release. QC typically runs XRD (phase ID), ICP for metals, KF for moisture, whiteness index (ISO 2469), and bulk density. Shelf life: around 24 months sealed; it’s hygroscopic, so line managers usually insist on nitrogen-blanketed storage if the plant is humid.

Where it’s used

• Grease manufacturing (strontium complex greases—high dropping point, mechanical stability)
• Resins and coatings (neutralizer/catalyst for alkyd and polyester lines)
• Ceramic and specialty glass batches (basicity tuning)
• Lab and process pH control where sodium/potassium bases aren’t preferred

Vendor comparison (quick take)

Customization and QA

Options I’ve seen customers request: tighter SrCO3 control (

Two quick case notes

1) A grease plant cut lot-to-lot viscosity drift by specifying strontium hydroxide D50 at 12 μm and Fe ≤ 30 ppm; drop point rose ≈10–15°C. 2) A resin maker reduced fish-eye defects after switching to octahydrate and adding KF moisture checks at incoming QC. Small tweaks, big payoff.

Safety, compliance, and storage

It’s a strong base—corrosive. Follow GHS labeling, goggles, gloves, and dust control. Store cool and dry, sealed; once opened, use quickly or reseal with desiccant. Ask for SDS aligned with REACH/CLP and transport info (not DG by air in most forms, but verify your route).

If you want a quote or tighter spec, I’d ping FIZA’s team—response times have been better than average lately, and pricing has been, to be honest, surprisingly competitive for strontium hydroxide.

Authoritative references

1. PubChem. Strontium hydroxide (Sr(OH)2) compound summary. NIH/NLM.
2. ECHA (European Chemicals Agency). Registration dossier/InfoCard for strontium hydroxide.
3. ASTM E203—Standard Test Method for Water Using Karl Fischer Reagent.
4. ISO 13320—Particle size analysis—Laser diffraction methods.
5. ASTM E70—Standard Test Method for pH of Aqueous Solutions With the Glass Electrode.