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Sodium phosphate monobasic CAS#7558-80-7

  • Sodium phosphate monobasic CAS#7558-80-7
  • Sodium phosphate monobasic CAS#7558-80-7
  • Sodium phosphate monobasic CAS#7558-80-7
  • Sodium phosphate monobasic CAS#7558-80-7
  • Sodium phosphate monobasic CAS#7558-80-7

Sodium phosphate monobasic CAS#7558-80-7

Available in multiple forms: white powder, granules, or colorless to white crystalline powder, providing flexibility for different applications.

Relatively soluble in water, making it easy to prepare aqueous solutions.

Slightly acidic aqueous solution (pH around 4.5), suitable for applications requiring mild acidity.

Insoluble in ethanol and only slightly soluble in chloroform, ensuring stability in non-aqueous solvents.


Phone ：+86 18626059817
WhatsApp ：+86 18626059817
Email ：cora@wxqysteel.com
product description

Product Description of Sodium phosphate monobasic CAS#7558-80-7

Anhydrous product is white powder or granules; dihydrate is colorless to white crystals or crystalline powder. Moderately soluble in water to form acidic solution at pH approx 4.5, practically insoluble in ethanol and slightly soluble in chloroform.


Product Application of Sodium phosphate monobasic CAS#7558-80-7

Monobasic sodium phosphate monohydrate is widely used as a sequestrant, emulsifier and dye mordant, as well as a reagent and buffer in food and analytical chemistry. It also acts as a fire retardant and silk weighting agent in tanning. Furthermore, it is applied in enamels, ceramics, detergents and boiler chemicals, and can replace borax in soldering and brazing.

Product Information

Parameters


Melting point<0°C
Boiling point100°C
bulk density940kg/m3
density1.40 g/mL at 20 °C
vapor pressure0Pa at 20℃
storage temp.room temp
solubilityH2O: 5 M, clear, colorless
formpowder
colorWhite
Odorat 100.00?%. odorless
PH4.0 - 4.5 (25℃, 50g/L in water)
pka(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Water SolubilitySoluble in water. Insoluble in alcohol,ether and chloroform.
λmaxλ: 260 nm Amax: ≤0.025
λ: 280 nm Amax: ≤0.02
SensitiveHygroscopic
Merck148,660
BRN3903772
Stability:Stable. Incompatible with heavy metals, strong acids.
InChIKeyAJPJDKMHJJGVTQ-UHFFFAOYSA-M
LogP-2.148 (est)
CAS DataBase Reference7558-80-7(CAS DataBase Reference)
EPA Substance Registry SystemMonosodium phosphate (7558-80-7)
Absorption≤0.2 at 260 in H2O at 1M
≤0.2 at 280 in H2O at 1M


Safety Information


Hazard CodesXi
Risk Statements36/37/38-36
Safety Statements26-36-39
WGK Germany1
RTECSWA1900000
F3
TSCAYes
HS Code28352200
Hazardous Substances Data7558-80-7(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 8290 mg/kg LD50 dermal Rabbit > 7940 mg/kg


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We are a supply chain service provider rather than a single manufacturer. Instead of being tied to one specific factory, we have established deep partnerships with numerous high-quality domestic chemical enterprises that hold certifications such as ISO and REACH. This allows us to flexibly match the most suitable supply sources to your needs while independently conducting third-party quality inspections to ensure delivery quality and price competitiveness.
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We maintain transit warehouses with standing inventory in Southeast Asia, the Middle East, and Eastern Europe.
For you: You can pick up goods directly from local warehouses without the need for full-container orders; delivery times are reduced from the standard 30–45 days to just 3–5 days.
Reduced inventory pressure: You can purchase small batches for trial and quality verification before scaling up orders, avoiding the need to tie up large amounts of capital upfront.
Emergency restocking: If your production line faces a sudden material shortage, we can urgently dispatch supplies from our regional warehouses to prevent production downtime.
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For standard products, the MOQ is typically one 20-foot container (approx. 16–20 tons) for direct shipments from China. However, for stock picked up from overseas warehouses, we support orders starting from 1 ton—ideal for sample testing or small-batch production. Specific MOQs depend on the product category and packaging type; please contact us for details.
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We implement a "three-level quality control" system:
Before leaving the factory: We require the factory to provide a Certificate of Analysis (COA) for the specific batch.
Before shipment: We commission international third-party agencies like SGS or Intertek to conduct random inspections, with costs covered by us (for long-term partners).
After arrival: If quality issues arise, we commit to unconditional negotiation regarding returns, exchanges, or compensation, and we assume full responsibility. All terms are stipulated in the contract.
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FOB (China Port): Goods are prepared and shipped within 7–15 working days after the contract is signed and the prepayment is received.
Overseas Warehouse Stock: Items are dispatched within 1–3 working days of order confirmation and payment; local delivery typically takes 2–5 days (depending on the country).
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Which trade terms do you offer? Do you support DDP (Delivered Duty Paid)?

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We are proficient in handling common terms such as FOB, CIF, CFR, and EXW. Additionally, for regions covered by our overseas warehouses, we offer DDP services (including duties and door-to-door delivery), allowing you to receive goods without the hassle of complex import customs clearance procedures. Please consult your sales manager for specific costs.
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How can I obtain samples? What are the costs?

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If stock is available at an overseas warehouse, we can provide 1–2 kg of samples for free; you only need to cover the local courier fees.
If shipping from China, we can arrange delivery via DHL or FedEx; samples are free, but you bear the international shipping costs. Once a clear intent to cooperate is established, these shipping costs can be deducted from your first order.
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We offer a price protection mechanism:
For fixed-price contracts, we do not unilaterally raise prices due to market increases.
If you anticipate a market downturn, we can negotiate floating pricing—settling based on a benchmark price on the date of shipment or arrival—to flexibly manage fluctuations.
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We provide full-lifecycle service:
Usage Guidance: Assistance with adjusting processing parameters (if required).
Complaint Handling: Response within 48 hours and a solution provided within 7 days.
Regular follow-ups: Proactive contact every six months to understand changing needs and optimize supply solutions.
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