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Mono Sodium Phosphate 103% Colorless or white rhombic crystals

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CAS No.:

7558-80-7

Grade:

Industrial Grade

Content:

103%

Port:

the port of Qingdao

Packaging:

25kg/bag

Price valid (until):

2023-04-30

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Shandong Lingnuo chemical Co., Ltd

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Melamine,ethyl acetate,maleic anhydride,acetic acid,tetrahydrofuran,butyl acetate

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Product Description
Seller Information
Inquiry History

Description

Mono Sodium Phosphate

Colorless crystal or white crystalline powder; Odorless and salty. Slightly deliquescent. Soluble water, almost insoluble in ethanol. We lose water at 100℃. Its aqueous solution is acidic.

Tasteless. Slightly hygroscopic. Heated to 225-250℃ to produce acid pyrophosphate sodium, 350-400℃ to form sodium metaphosphate. Median lethal dose (rat, muscle)250mg/kg. Soluble in water, aqueous solution is acidic, can caking in wet air, almost insoluble in ethanol. When heated to 100℃, dehydration, at 190-210℃ to produce sodium pyrophosphate, at 280-300℃ decomposition into sodium metaphosphate. Solubility in water :850 g/L (20°C).

Used as reactive dye additive. Used for phosphate-modified starch. Preparation of special compound food phosphate.

Items	Specifications
CAS	7558-80-7
chemical formula	H3O4P.Na
molecular weight	119.977
density	1.40g/mLat 20°C
melting point	<0°C
boiling point	100°C
water solubility	Soluble in water. Insoluble in alcohol,ether and chloroform.
vapour pressure	0Pa at 20℃
solubility	H2O: 5M, clear, colorless
acidity coefficient	(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
PH value	4.0 - 4.5 (25℃, 50g/L in water)
storage condition	room temperature
stability	Stable. Incompatible with heavy metals, strong acids.
sensibility	Hygroscopic
appearance	powder
colour	White
Maximum wavelength (λmax)	['λ: 260 nm Amax: ≤0.025', , 'λ: 280 nm Amax: ≤0.02']
physico-chemical property	Colorless or white rhombic crystals. Relative density 1.91. Melting point 60℃. Easily soluble in water, its aqueous solution is acidic; Insoluble in alcohol. It clumps easily in wet air. When it is heated to 95℃, it is dehydrated into anhydrous substance, transformed into acid sodium pyrophosphate at 190 ~ 204℃, and sodium metaphosphate at 204 ~ 244℃.
product use	Used in boiler water treatment, electroplating, tanning, dye, medicine, food and other industries. Used as reactive dye additive. Used for phosphate-modified starch. Preparation of special compound food phosphate.
security	Rat transoral LD50:8290mg/kg. Adi0-70 mg/kg(total phosphate in terms of phosphorus, FAO/WHO, 2001). It is a microtoxin. It is irritating to the eyes and skin. Heat accounted for phosphorus oxide and sodium oxide smoke. Should be stored in a cool, ventilated and dry storeroom. Open yard shall not be stacked. Do not store and transport with wet or toxic goods. Protect against rain and sun exposure, moisture and weathering during transportation. Handle with care during loading and unloading to prevent the bag from breaking. Packed in plastic woven bags lined with polythene bags, each bag weighs 25kg or 50kg net. Fire, water, dry sand, all kinds of fire extinguishers.

Basic Info

Product Name:

Monosodium phosphate

Other Name:

Phosphoric acid,sodium salt (1:1);Phosphoric acid,monosodium salt;Monosodium phosphate;Sodium phosphate (Na(H2PO4));Monobasic sodium phosphate;Dihydrogen sodium phosphate;Sodium dihydrogen orthophosphate;Sodium phosphate,monobasic;Sodium dihydrogen monophosphate;Monosodium dihydrogen orthophosphate;Sodium monobasic phosphate (NaH2PO4);Sodium primary phosphate;Monosodium hydrogen phosphate;Sodium dihydrogen phosphate (NaH2PO4);Sodium dihydrogen phosphate;Sodium hydrogen phosphate (NaH2PO4);Monobasic sodium phosphate (NaH2PO4);Dihydrogen monosodium phosphate;Sodium orthophosphate monobasic;Sodium monobasic phosphate;S 3139;1333-80-8;89140-32-9;943540-07-6

CAS No.:

7558-80-7

Molecular Formula:

H3O4P.Na

InChIKeys:

InChIKey=NFIYTPYOYDDLGO-UHFFFAOYSA-N

Molecular Weight:

119.97700

Exact Mass:

119.95900

EC Number:

618-243-1

UNII:

KH7I04HPUU

DSSTox ID:

DTXSID7035222

Color/Form:

Colorless, monoclinic crystals|White crystalline powder

HScode:

2835220000

Categories:

Inorganic Salts

Characteristics

PSA:

90.40000

XLogP3:

-0.49040

Appearance:

DryPowder; DryPowder, PelletsLargeCrystals; Liquid; PelletsLargeCrystals

Density:

1.40 g/mL at 20ºC

Melting Point:

60 °C

Boiling Point:

158ºC at 760 mmHg

Water Solubility:

In water, 85 g/100 mL

Storage Conditions:

Store at RT.

Toxicity:

LD50 orally in Rabbit: 8290 mg/kg LD50 dermal Rabbit > 7940 mg/kg

Odor:

Odorless

PH:

Between 4,1 and 5,0 (1 % solution)

Dissociation Constants:

The pKa of monosodium phosphate is 6.8-7.2 (depending on the physicochemical characteristics during pKa determination)

Experimental Properties:

SOLN PRODUCES EFFERVESCENCE WITH SODIUM CARBONATE; NEUTRAL, OR PRACTICALLY NEUTRAL, TO METHYL ORANGE TEST SOLN /SODIUM DIHYDROGEN PHOSPHATE MONOHYDRATE/|Slightly hygroscopic ... Has acid reaction; forms sodium acid pyrophosphate at 225-250 °C and sodium metaphosphate at 350-400 °C|Colorless, orthorhombic crystals; MP: 60 °C (decomposes); density: 1.91 g/cu cm; 94.9 g/100 g water at 25 °C. Insoluble in ethanol /Sodium dihydrogen phosphate dihydrate/|Orthorhombic bisphenoidal colorless crystals, mp 60 °C, specific gravity 1.915. At room temp crystallizes with 2H2O. /Sodium dihydrogen phosphate dihydrate/|White, odorless, slightly deliquescent crystals or granules. At 100 °C loses all its water; when ignited it converts into metaphosphate. Freely soluble in water; practically insoluble in alcohol. The aqueous soln is acid. pH of 0.1 molar aq soln at 25 °C: 4.5. /Sodium dihydrogen phosphate monohydrate/|Reacts slowly on exposure to water (moisture) with (some) metals. On burning: release of toxic and corrosive gases/vapours (phosphorus oxides). Reacts violently with (some) acids/bases.

See More Monosodium phosphate Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Monosodium phosphate Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Melamine,ethyl acetate,maleic anhydride,acetic acid,tetrahydrofuran,butyl acetate

Location:
Room 21-1, 14th floor, Zone (A), Guangrao City Commercial Complex, Quanfu Yuan, Guangrao County, Dongying City, Shandong Province

Payment Terms:
TT against copy of documents,L/C

Average lead Time:
20

Total Annual Revenue:
$50 million-$100 million

Total Employees:
51-100

Year of Establishment:
2018

Shandong Lingnuo chemical Co.,Ltd is located in Dongying City, Shandong Province, export more than ten years It is mainly exported to Africa, Asia,Middle East,South America , mainly delaing with product tetrahydrofuran, Melamine, Methylene chloride, aniline oil, Dimethyl Formamide,Acetic acid, Isopropyl Alcohol, Maleic anhydride,Methyl Acetate,DMSO, Ethanol and so on.

Inquiry History

8 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Mono sodium phosphate	30.00 MT	Dec 19, 2025
Pakistan	SODIUM DIHYDROGEN PHOSPHATE	700 KG	Dec 18, 2025
Pakistan	Mono sodium phophate	1.00 MT	Jan 29, 2024
Pakistan	Sodium Dihydrogen Phosphate	1000 KG	May 19, 2026
United Kingdom	NaH2PO4	2000 MT	Sep 22, 2025
United Arab Emirates	mono sodium phosphate	100.00 KG	Apr 21, 2025
Bangladesh	Sodium dihydrogen phosphate	70.00 KG	Mar 27, 2025
Vietnam	Sodium dihydrogen phosphate	50.00 KG	Oct 25, 2023

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Mono Sodium Phosphate 103% Colorless or white rhombic crystals

Product Description

Seller Information