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Category
|
English Name
|
Abbreviation
|
International Common Name
|
Identifier Code
|
|---|---|---|---|---|
|
Chemical Name
|
Sodium Hydroxide
|
NaOH
|
Caustic Soda
|
CAS No.: 1310-73-2
|
|
Product Form
|
Caustic Soda Pearls / Beads
|
CSP
|
Lye (for solution form)
|
EINECS No.: 215-185-5
|
|
Subtype
|
Micropearls / Coarse Pearls
|
-
|
PELS® (Brand-specific Pearls)
|
UN No.: 1823 (Class 8 Corrosive Substance)
|
|
Customs Code
|
-
|
-
|
-
|
HS Code: 2815120000
|
|
Index
|
Premium Grade
|
First Grade
|
Test Method
|
|---|---|---|---|
|
NaOH Purity
|
≥99.0%
|
≥98.5%
|
Acidimetric Titration
|
|
Sodium Carbonate (Na₂CO₃)
|
≤0.5%
|
≤0.8%
|
Gas Phase Stripping Method
|
|
Sodium Chloride (NaCl)
|
≤0.03%
|
≤0.05%
|
Argentometric Titration
|
|
Iron(III) Oxide (Fe₂O₃)
|
≤0.005%
|
≤0.008%
|
Spectrophotometry
|
|
Appearance
|
White spherical pearls, odorless
|
Highly hygroscopic, easy to deliquesce if exposed to air
|
Visual Inspection
|
|
Particle Size
|
Micropearls: ~0.7mm; Coarse Pearls: 1-3mm
|
Similar to washing powder particles, good fluidity
|
Sieving Method
|
|
Property
|
Value/Description
|
|---|---|
|
Physical Form
|
White solid pearls, uniform spherical shape, excellent fluidity, low dust, anti-caking
|
|
Solubility
|
Highly soluble in water,exothermic strongly during dissolution, aqueous solution is strongly alkaline (pH > 14)
|
|
Hygroscopicity
|
Extremely high; absorbs moisture quickly and deliquesces when exposed to air, requiring sealed packaging
|
|
Melting Point/Boiling Point
|
318.4℃ / 1390℃, good thermal stability
|
|
Density
|
2.13g/cm³, high bulk density, better packaging efficiency than flake caustic soda
|
|
Advantage
|
Description
|
|---|---|
|
Operational Safety
|
Low dust, reducing the risk of respiratory irritation
|
|
Precise Metering
|
Uniform particles, easy to control by automatic feeding systems
|
|
Storage Stability
|
Strong anti-caking property, long shelf life
|
|
Good Mixability
|
Mixes uniformly with other materials, high reaction efficiency
|
|
Industry
|
Application
|
Market Demand Characteristics
|
|---|---|---|
|
Detergent/Soap
|
Neutralizing fatty acids, manufacturing surfactants
|
High demand in Southeast Asia and the Middle East, preference for pearl form
|
|
Paper/Celulose
|
Cooking liquor preparation, lignin removal
|
High-end markets in North America and Europe, requiring low impurities
|
|
Water Treatment
|
pH adjustment, heavy metal precipitation
|
Growing global environmental protection demand, increasing food-grade applications
|
|
Petrochemical
|
Deacidification in refining process, catalyst preparation
|
Stable demand in oil-producing regions such as the Middle East and Russia
|
|
Food Processing
|
Peeling, cleaning, pH adjustment
|
Compliance with FDA/EU food additive standards (e.g., E524) required
|
|
Item
|
Specification
|
|---|---|
|
Standard Packaging
|
25kg laminated paper bags (leak-proof and moisture-proof); customizable pallet packaging (20-27 tons/20ft container)
|
|
Transportation Notes
|
Mark UN1823, avoid mixed transportation with acidic substances, keep dry and ventilated
|
|
Requirement
|
Details
|
|---|---|
|
Safety Document
|
Provide MSDS/SDS (in line with GHS standards)
|
|
EU Access
|
Complete REACH registration
|
|
Food-Grade Application
|
Pass FDA/EFSA certification
|
|
Packaging Labeling
|
Mark corrosive warning signs and safety operation instructions
|
Products
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