| Chemical Name: | Sodium dihydrogen phosphate |
| CAS Number: | 7558-80-7 (anhydrous), 10049-21-5 (monohydrate) |
| Synonyms： | Monosodium phosphate, NaH₂PO₄ |
| EINECS: | 231-449-2 |
| Molecular Formula: | NaH₂PO₄ (anhydrous), NaH₂PO₄·H₂O (monohydrate) |
Description
Sodium Dihydrogen Phosphate is a versatile inorganic compound with excellent buffering properties and solubility characteristics. Available in both anhydrous and monohydrate forms, this white crystalline powder serves as an effective pH regulator, nutrient source, and processing aid across multiple industries.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White crystalline powder | Visual |
| Assay (NaH₂PO₄) | ≥98.0% | Titration |
| pH (1% solution) | 4.2-4.5 | pH meter |
| Water Insoluble | ≤0.1% | Gravimetric |
| Heavy Metals (as Pb) | ≤10 mg/kg | AAS |
| Loss on Drying | ≤2.0% (anhydrous) | Gravimetric |
| Fluoride (as F) | ≤10 mg/kg | Ion chromatography |
● Acidity regulator in beverages and baked goods
● Emulsifying salt in processed cheese products
● Nutrient supplement in food fortification
● Stabilizer in various food formulations
● Water treatment for corrosion inhibition
● Metal surface treatment and phosphating
● Buffering agent in chemical processes
● Fire retardant in various materials
● Pharmaceutical preparations
● Animal feed additive
● Laboratory reagent
● Fertilizer component
● Anhydrous powder (NaH₂PO₄)
● Monohydrate crystals (NaH₂PO₄·H₂O)
● 25 kg woven bags with PE liner
● 500 kg jumbo bags for bulk orders
● Custom packaging available upon request
● Store in cool, dry, and well-ventilated areas
● Keep containers tightly closed
● Protect from moisture and contamination
● Separate from alkaline materials
