Cosmetic Grade Disodium Dihydrogen Pyrophosphate-CAS 7758-16-9
Product Name: Disodium Dihydrogen Pyrophosphate
Abbreviation: DSPP
INCI Name: Disodium Dihydrogen Pyrophosphate
CAS No.: 7758-16-9
Grade: Cosmetic Grade (Daily Chemical & Personal Care Special)
Purity: ≥99.0%
Appearance: White Crystalline Powder, Odorless
Molecular Formula: Na₂H₂P₂O₇
Molecular Weight: 221.94
MOQ (Minimum Order Quantity): 1KG
Solubility: Easily soluble in water, insoluble in ethanol and organic solvents, dissolves quickly to form clear and transparent aqueous solution
pH Value (1% Aqueous Solution): 3.8 - 4.8
Key Characteristics: Professional pH buffering performance, efficient metal ion chelation, water quality conditioning, anti-oxidation and anti-discoloration, stable formula system, prevent precipitation and turbidity, excellent compatibility with surfactant systems
Storage Condition: Sealed, dry, cool and ventilated environment, strictly prevent moisture absorption and caking, avoid mixing with alkaline substances, keep tightly sealed after opening to prevent deliquescence and performance attenuation
Shelf Life: 24 Months
Application: Widely used in facial skin care products, toner, essence, lotion and cream, shampoo, body wash, facial cleanser and other daily chemical products, used for pH buffering, metal chelation and system stabilization
Disodium Dihydrogen Pyrophosphate, Cosmetic Grade Disodium Dihydrogen Pyrophosphate, pH Buffer Agent, Metal Chelator, Water Quality Stabilizer, Anti-Discoloration Additive, Daily Chemical Stabilizer
Cosmetic Grade Disodium Dihydrogen Pyrophosphate-CAS 7758-16-9
Cosmetic-grade Disodium Dihydrogen Pyrophosphate (DSPP) is a professional inorganic phosphate functional stabilizer specially formulated for cosmetic and daily chemical systems. Different from single chelating agents, it integrates dual core functions of pH buffering and metal chelating, solving multiple formula pain points with low dosage.
It has precise and durable pH buffering capacity in weakly acidic cosmetic systems, which can effectively resist pH value drift caused by raw material differences, temperature changes and long-term storage, maintaining the optimal acid-base balance of skin care and cleaning formulas.
Meanwhile, DSPP can efficiently chelate metal ions such as calcium, magnesium and iron in production water and raw materials, eliminate hard water interference, purify water quality, and avoid formula turbidity, flocculation and precipitation. It can shield the catalytic oxidation of metal ions on active ingredients, effectively inhibit the yellowing, darkening and odor deterioration of finished products during shelf life, and significantly improve product appearance stability and storage cycle.
With high purity, low impurity and mild properties, it does not irritate the skin, does not affect the skin feel, viscosity and fragrance of finished products, and has excellent synergistic stability with surfactants, plant extracts and functional additives. It is an essential multi-functional auxiliary raw material for high-stability daily chemical and skin care formulas.
Key Benefits
• Dual Functions of pH Buffering & Stabilization: Precisely lock the pH value of weakly acidic formulas, resist environmental and raw material interference, avoid pH drift and maintain long-term formula acid-base balance.
• Efficient Metal Chelation & Water Purification: Capture calcium, magnesium, iron and other metal impurities, eliminate hard water influence, solve turbidity and precipitation, and purify cosmetic water system.
• Anti-Oxidation & Anti-Discoloration: Shield metal catalytic activity, protect active ingredients from oxidative failure, prevent product yellowing and darkening, and keep transparent and pure appearance.
• Excellent Formula Synergy: Highly compatible with surfactants, plant extracts and various functional ingredients, optimize system uniformity and improve overall stability of finished products.
• Mild & Safe Skin-Friendly: Cosmetic high-purity purification, low irritation and no harmful residues, does not affect skin feel and fragrance, suitable for mild daily chemical formulas.
• Low Dosage & High Cost Performance: Dual-functional integration reduces auxiliary addition types, simple formula operation, low comprehensive cost and high mass production applicability.
Applications
• Weak Acid Skincare Products: Professional pH buffer for weakly acidic toner, soothing essence, moisturizing lotion and facial cream, maintain skin-friendly pH value and improve product mildness.
• Daily Cleansing Series: Widely used in amino acid facial cleanser, shampoo, body wash and hand sanitizer, stabilize surfactant system, prevent turbidity and delamination, and improve cleaning texture.
• Transparent Water-Based Formulas: Ideal stabilizer for transparent toner, transparent gel and light water-based skincare products to ensure long-term clear and translucent appearance without impurities.
• Functional Additive Formulas: Applied in formulas containing vitamins, plant extracts and easily oxidized active ingredients to protect activity and inhibit oxidative deterioration.
• Long-Shelf-Life Daily Chemicals: Used in daily chemical products requiring long-term storage stability, delay formula aging, extend shelf life and reduce defective rate.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Disodium Dihydrogen Pyrophosphate (DSPP) | Compliant |
CAS No. | 7758-16-9 | Compliant |
Appearance | White Crystalline Powder, Odorless | Compliant |
Purity | ≥99.0% | 99.58% |
pH Value (1% Solution) | 3.8 - 4.8 | 4.25 |
Moisture Content | ≤0.2% | 0.07% |
Water Insoluble Matter | ≤0.05% | 0.02% |
Heavy Metal (Pb) | ≤10ppm | Qualified |
Arsenic (As) | ≤2ppm | Qualified |
Iron (Fe) | ≤5ppm | Qualified |
Chloride Content | ≤0.03% | 0.01% |
Sulfate Content | ≤0.05% | 0.02% |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of cosmetic grade Disodium Dihydrogen Pyrophosphate? A1: The standard MOQ is 1KG, and sample orders are supported for formula testing and stability trial production.
• Q2: What certification documents can be provided? A2: Complete COA, MSDS and full set of global customs clearance documents are available to support export declaration.
• Q3: What is the recommended dosage in cosmetic formulas? A3: Conventional addition ratio is 0.02%-0.1% for skincare products, 0.05%-0.15% for cleansing and hair care products, adjustable according to pH adjustment and stability requirements.
• Q4: What is the core advantage of DSPP compared with single buffer agent? A4: It integrates pH buffering and metal chelating dual functions, which can stabilize formula pH and purify water quality at the same time, reduce auxiliary types, simplify process and improve formula stability comprehensively.
• Q5: Will it cause skin irritation or affect product texture? A5: No, high-purity cosmetic grade with ultra-low irritation. It can stably maintain mild weak acid pH, does not affect product skin feel, viscosity and fragrance, and is safe for daily cosmetic formulas.
• Q6: Do you support stable large-batch supply all year round? A6: Sufficient factory production capacity ensures continuous, stable and large-volume supply throughout the year to support long-term cooperative orders and customized formula demands.
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