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Name	Disodium hydrogenorthophosphate	EINECS	231-448-7
CAS No.	7558-79-4	Density	1.064 g/mL at 20 °C
PSA	93.23000	LogP	-0.05220
Solubility	>=10 g/100 mL at 20 °C in water	Melting Point	243-245 °C
Formula	Na₂HPO₄	Boiling Point	158oC at 760 mmHg
Molecular Weight	141.96	Flash Point	N/A
Transport Information	N/A	Appearance	white granular powder
Safety	26-36-24/25	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Phosphoricacid, disodium salt (8CI,9CI);Anhydrous sodium acid phosphate;DSP;Dibasic sodium phosphate;Disodium acidphosphate;Disodium hydrogen orthophosphate (Na2HPO4);Disodium hydrophosphate;Disodium monohydrogen phosphate;Disodium phosphate;Disodium phosphate (Na2HPO4);Hydrogen disodium phosphate;Hydrogen sodium phosphate(HNa2PO4);Monohydrogen disodium phosphate;Soda Phosphate;Sodium monohydrogenphosphate;Sodium orthophosphate dibasic;Sodium phosphate (Na2HPO4);Disodiumhydrogen phosphate;disodium hydrogen phosphate;

Disodium hydrogenorthophosphate Chemical Properties

Product Name: Disodium hydrogenorthophosphate (CAS NO.7558-79-4)

Molecular Formula: Na₂HPO₄
Molecular Weight: 141.96g/mol
Mol File: 7558-79-4.mol
EINECS: 231-448-7
Appearance: white granular powder
Boiling point: 158 °C at 760 mmHg
Water Solubility: >=10 g/100 mL at 20 °C
Sensitive: Hygroscopic
Stability: Stable. Incompatible with strong acids. Hygroscopic.
Vapour Pressure: 1.41 mmHg at 25°C
H-Bond Donor: 1
H-Bond Acceptor: 4
Structure Descriptors of Disodium hydrogenorthophosphate (CAS NO.7558-79-4):
IUPAC Name: disodium hydrogen phosphate
Canonical SMILES: OP(=O)([O-])[O-].[Na+].[Na+]
InChI: InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChIKey: BNIILDVGGAEEIG-UHFFFAOYSA-L
Product Categories: Inorganics;Chemistry

Disodium hydrogenorthophosphate Uses

Disodium hydrogenorthophosphate (CAS NO.7558-79-4) is used as soft agent, fabric used, fireproofing agent. Disodium hydrogenorthophosphate is also used for glaze medicine, pigment, food industry and making other phosphate as industrial water treatment, printing and dyeing detergent, quality improver, neutralizer, antibiotics cultivate agent, biochemical treatment, food quality improver.

Disodium hydrogenorthophosphate Toxicity Data With Reference

1.	skn-rbt 500 mg/24H MLD	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,16.
2.	eye-rbt 500 mg/24H MLD	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,16.
3.	orl-rat LD50:17 g/kg	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,16.
4.	ipr-rat LDLo:1000 mg/kg	BIZEA2 Biochemische Zeitschrift. 163 (1925),226.
5.	scu-rat LDLo:1000 mg/kg	BIZEA2 Biochemische Zeitschrift. 163 (1925),226.
6.	ims-rat LDLo:1000 mg/kg	BIZEA2 Biochemische Zeitschrift. 163 (1925),226.

Disodium hydrogenorthophosphate Consensus Reports

Reported in EPA TSCA Inventory.

Disodium hydrogenorthophosphate Safety Profile

Safety Information of Disodium hydrogenorthophosphate (CAS NO.7558-79-4):
Hazard Codes: Xi Irritant
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3

Disodium hydrogenorthophosphate Specification

Disodium hydrogenorthophosphate , its CAS NO. is 7558-79-4, the synonyms are Dibasic sodium phosphate ; Disodium acid orthophosphate ; Disodium acid phosphate ; Disodium hydrogen phosphate ; Disodium hydrogen phosphate, anhydrous ; Disodium hydrophosphate ; Disodium monohydrogen phosphate ; Disodium orthophosphate ; Disodium phosphate ; Disodium phosphate, anhydrous ; Disodium phosphoric acid ; Exsiccated sodium phosphate ; Natriumphosphat ; Phosphate of soda ; Phosphoric acid, disodium salt ; Soda phosphate ; Sodium acid phosphate, anhydrous ; Sodium hydrogen phosphate ; Sodium monohydrogen phosphate ; Sodium orthophosphate, secondary ; Sodium phosphate ; Sodium phosphate, dibasic ; Sodium phosphate, exsiccated ; secondary Sodium phosphate .

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