Disodium Phosphate Dihydrate Disodium Dihydrogen Phosphate

• CAS No.: 7558-80-7, 7558-79-4
• Formula: Na2hpo4.2H2O, Na2hpo4.12H2O
• EINECS: 231-448-7
• Certification: Ccic, CIQ, RoHS, ISO
• Purity: 90%~99%
• Type: Disodium Phosphate
• Model NO.: dsp
• Grade Standard: Industrial Grade
• Content: 97%
• Application: Industrial Ingredients
• Molecular Weight: 177.99
• Executive Standard: Hg/T2965-2009
• Appearance: White Crystal
• Density: 1.52
• Soluble: in Water
• pH Value: 8.8-9.2
• Pallet: Based on Buyer′s Requirment
• Shelf Life: 2 Years Proper Storage
• Transport Package: 25kg
• Specification: white crystal
• Trademark: yucai chemical
• Origin: China
• HS Code: 28351000
• Production Capacity: 5000tons/Month

Product Description

Product Name:                    Disodium Phosphate (DSP) industrial grade
Other Name:                       Dibasic Sodium Phosphate
Grade :                            industrial  Grade
Application:                         industrial Additive
Executive Standard:           HG/T2965-2009
Molecular weight:               177.99
Synonyms :                        Disodium Phosphate
Molecular formula :            Na2HPO4.2H2O
CAS NO. :                         7558-79-4
Standard Executed :          GB25568-201
 

 

Disodium Phosphate (DSP) Properties

White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.52 g/cm3, melting point at 35ºC

 

Disodium Phosphate (DSP) Specificataion

No.	Specifications	Na2HPO4
		Industrial Grade
1	Main content                    % ≥	98
2	PH of 1% solution	9±0.2
3	Sulphate                           % ≤	0.7
4	Chloride,as Cl                    % ≤	0.05
5	Fluoride, as F                    % ≤	0.05
4	Heavy metal, As Pb           % ≤	0.001
6	Water insoluble              % ≤	0.05

Disodium Phosphate (DSP) Application:
Used as fire-extinguishing agent for fabric, woods, paper; as soft water agent for boilers; 

Monosodium Phosphate(MSP),Disodium phosphate(DSP),Trisodium phosphate(TSP) all could be used for boiler water treatment. MSP is used as control of anode corrosion,DSP is as control of alkali corrosion ,TSP is as softer of calcium and magnesium ion precipitation.TSP is with the largest usage.

MSP and DSP keep proper alkali value and prevent more hydroxide ion.

TSP is to prevent calcium and magnesium precipitation.From phosphate protective film inside boiler to prevent corrosion.

Phosphate chemical is adapted for water hardness more than 4mmol/L,or evaporation more than 4t/h,or water hardness less than 1.5mmol and SiO2 content more than 30%.the combination of DSP,TSP and MSP could keep the PH value of boiler water in a best range,and together with moderate dispersing agent could control the potential settings.

For construction materials,
Monosodium Phosphate(MSP) is used for cement sand to prolong the time of setting.The usage shall be less than 0.06%.
Disodium Phosphate(DSP) is used to change collapsibility and improve bonding strength of sodium silicate.The usage is be 2%-4%,if more than 4%,the effect is not obviously.
Trisodium phosphate(TSP) is used as water reducer to improve mud fluidity.

For metal surface treatment,
The preparation of phosphate chemical liquid keep metal performance and without any destroy of coating film.

Monosodium phosphate(MSP)--filmogen,acidity regulator

Disodium Phosphate(DSP)-corrosion inhibitor

Trisodium Phosphate(TSP)-Alkali degreasing degreasant

Why Choose YuCai Factory?

1.Mixed container, we can mix different items in one container.
2.Over 30 years of experience
3.Sales to more than 70 countries
4.100 products with competitive price
5.FCL, LCL, long contract, year contract available
6.Halal, Kosher, ISO 9001 certified
7.High quality products, complying with BP/USP/FCC/EU standard
8.1500 m2 owned Office building and 20000 m2 Factory site
9. Different payment term could accept.

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