In basic chemicals, high-precision industrial cleaning, and automated dosing production lines, Caustic Soda Pearls (Sodium Hydroxide Pearls, CAS No.: 1310-73-2) represent a key form of high-purity sodium hydroxide ($\text{NaOH}$) with a main assay of no less than 99%. Compared to traditional caustic soda flakes, caustic soda pearls feature high bulk density, excellent free-flowing properties, and significantly reduced dust emission, making them an ideal choice for modern automated dosing systems and high-standard chemical manufacturing.

Wuxi High Mountain Hi-Tech Development Co., Ltd. specializes in the bulk export and supply chain support of high-purity industrial-grade caustic soda pearls, delivering consistent, quality chemical raw materials to petrochemicals, industrial water treatment, pharmaceutical intermediates, and paper manufacturing industries.

I. Physicochemical Properties & Quality Control Standards

Industrial caustic soda pearls are manufactured using a spray-granulation process from molten caustic soda, producing uniform white spherical granules with diameters ranging from 0.5 to 1.5 mm.

Core Technical Quality Specifications:

• Sodium Hydroxide ($\text{NaOH}$) Main Assay: $\ge 99.0\%$

• Sodium Carbonate ($\text{Na}_2\text{CO}_3$) Content: $\le 0.5\%$

• Sodium Chloride ($\text{NaCl}$) Content: $\le 0.03\%$

• Iron Oxide ($\text{Fe}_2\text{O}_3$) Content: $\le 0.005\%$

• Appearance: White spherical granules, free from foreign mechanical impurities.

Due to low levels of iron ions and chloride impurities, caustic soda pearls supplied by Wuxi High Mountain maintain high clarity and chemical stability upon dissolution.

II. Core Industrial Advantages Over Flakes

In large-scale continuous production lines and high-standard workshops, caustic soda pearls offer several key features:

1. Reduced Dust Emission: During unpacking, feeding, and reactor charging, the spherical granules resist attrition and dust formation. This improves working environments and reduces cavitation and corrosion on exhaust and dust removal equipment.

2. Excellent Free-Flowing Performance: The uniform spherical shape prevents caking, ensuring smooth operation in automated quantitative feeding systems such as pneumatic conveyors and screw feeders.

3. Rapid and Uniform Dissolution: A uniform specific surface area allows spherical particles to disperse rapidly in water, releasing heat evenly without forming caked deposits at the bottom of vessels.

III. Core Industrial Applications

With a high purity of 99%+ and distinct physical properties, caustic soda pearls are widely utilized across multiple industrial sectors:

• Water Treatment & Environmental Engineering: Used for system pH adjustment, neutralization of acidic wastewater, and deep demineralization or resin regeneration in power plant water-steam cycles.

• Oil, Gas & Petrochemicals: Applied in formulating drilling fluids, desulfurization and deacidification refining of petroleum fractions, and absorption-neutralization of acidic waste gases.

• Pharmaceuticals, Agrochemicals & Daily Chemicals: Serves as a basic strong alkali reagent in organic synthesis, used in producing high-grade hard soaps, synthetic detergents, and hygiene products.

• Food & Beverage Industry (CIP Cleaning): Utilized for high-efficiency alkaline washing and sanitation of pipelines, tanks, and containers in breweries, dairy plants, and beverage production lines.

• Fine Chemical Synthesis: Used in manufacturing high-purity sodium salts, synthetic resins, dye intermediates, and chemical reagents.

IV. Packaging, Storage, and Safety Protocols

Sodium hydroxide is classified as a Class 8 corrosive substance (UN 1823). It is highly hygroscopic, readily absorbing moisture and carbon dioxide from the air. Bulk transport and storage must strictly adhere to the following standards:

• Standard Packaging:

  • 25 kg sealed polypropylene woven/paper-plastic composite bags with high-density polyethylene (HDPE) moisture-proof inner liners;

  • 1,000 kg jumbo bags (Big Bag / IBC) featuring moisture-proof baffles and inner liner protection;

  • Full palletizing and multi-layer stretch wrapping to prevent damage and moisture ingress during long-distance maritime and rail transit.

• Storage and Transport Requirements: Protect against rain, moisture, and package rupture. Keep away from strong acids and reactive metals, and strictly comply with international dangerous goods transport regulations (IMDG / ADR).

V. Wuxi High Mountain: Bulk Supply Chain Solutions

Wuxi High Mountain Hi-Tech Development Co., Ltd. provides complete supply chain support from Chinese origin ports to client destinations worldwide. Every batch of caustic soda pearls undergoes laboratory testing and is accompanied by compliance documentation:

• Certificate of Analysis (COA): Detailing main assay and trace impurity test results;

• Safety Data Sheet (MSDS / SDS): Fully compliant with international GHS standards;

• Technical Data Sheet (TDS): Specifying physical and chemical parameters alongside application guidelines.

Business Contact and Procurement Inquiries

To inquire about bulk pricing (FOB / CIF / DAP) for caustic soda pearls, request samples, or obtain Technical Data Sheets (TDS), please contact our international trade team:

• Contact Person: Mr. Fan

• Mobile / WeChat / WhatsApp: +86-13382223993

• Office Line: +86-510-85881876

• E-mail: sales1@wxhmchem.com / Harold2@high-mountain.cn

• Chinese Official Website: www.wxhmchem.com

• Russian Market Platform: www.highmountainchemru.com