Sodium phosphate monobasic

CAS 7558-80-7NaH2PO4Chemical Synthesis

Sodium phosphate monobasic (CAS 7558-80-7, NaH2PO4) is a highly soluble inorganic salt with a molecular weight of 119.98 g/mol. Supplied as a SAJ special grade with an assay of 99%, it is primarily used in chemical synthesis and as a synthetic reagent. Its reliable properties make it a staple for various laboratory and industrial applications requiring a high-purity sodium phosphate source. Please note this product is available only in Japan.

IUPAC: Monosodium dihydrogen orthophosphate,Monosodium phosphate,Sodium dihydrogen phosphate

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Sodium phosphate monobasic (NaH2PO4) — chemical structure, CAS 7558-80-7; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisInorganic SaltsSodiumSynthetic Reagents

01 /Applications

Chemical Synthesis

Serves as a crucial reagent in various organic and inorganic synthesis pathways. Its buffering capacity and reactivity are valuable for controlling reaction conditions and facilitating desired chemical transformations.

Laboratory Reagent

Utilised in analytical chemistry and research laboratories for buffer preparation and as a component in various chemical formulations. Its defined purity ensures reproducible results in experimental settings.

pH Adjustment

Its acidic nature in aqueous solutions allows for precise pH control in diverse chemical processes. It is particularly useful in applications requiring a pH in the range of 4.0-6.0 when prepared as a 1M solution.

02 /Properties

Molecular weight	119.98
Linear formula	NaH2PO4
Assay	99%
Grade	SAJ special grade
Density	1.40 g/mL at 20 °C
Solubility	H2O: soluble1 M, clear, colorless
pH	4.0-6.0 (20 °C, 1 M in H2O)
Concentration	5 M in H2O
Impurities tested	≤0.1% Insoluble matter

03 /Safety & handling

Precautionary statements

P305IF IN EYES

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	1
Cation traces	Al: ≤0.005%Ca: ≤0.01%Cu: ≤0.0005%Fe: ≤0.002%K: ≤0.2%Mg: ≤0.005%NH4+: ≤0.05%Pb: ≤0.001%Zn: ≤0.0005%
Anion traces	chloride (Cl-): ≤0.05%sulfate (SO42-): ≤0.05%

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

7558-80-7

05 /Additional specifications

Availability	available only in Japan
Uv Absorption	λ: 260 nm Amax: ≤0.025λ: 280 nm Amax: ≤0.02
Absorption	A1M/260, H2O ≤0.2A1M/280, H2O ≤0.2

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Sodium phosphate monobasic used for?

Sodium phosphate monobasic is primarily used in chemical synthesis and as a laboratory reagent for pH adjustment and buffer preparation.

What is the CAS number and chemical formula for Sodium phosphate monobasic?

The CAS number is 7558-80-7 and the chemical formula is NaH2PO4.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Sodium phosphate monobasic in SAJ special grade with an assay of 99%. We do not represent this product as USP, BP, or EP grade.

What are the safety precautions when handling Sodium phosphate monobasic?

When handling, wear eyeshields and gloves. Use a type N95 (US) or type P1 (EN143) respirator filter if necessary. In case of contact with eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing (P305 + P351 + P338).