Merck 106346 Sodium dihydrogen phosphate monohydrate for analysis EMSURE® ACS,Reag. Ph Eur CAS No.: 10049-21-5 1 kg

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LB.M.106346.1000

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CAS Number: 10049-21-5 EC Number: 231-449-2 Molar Mass: 137.99 g/mol Chemical Formula: NaH₂PO₄ * H₂O Hill Formula: H₂NaO₄P * H₂O Grade: ACS,Reag. Ph Eur

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Merck 106346 Sodium dihydrogen phosphate monohydrate for analysis EMSURE®

Sodium dihydrogen phosphate monohydrate for analysis EMSURE® ACS,Reag. Ph Eur. Sodium dihydrogen phosphate monohydrate CAS No. 10049-21-5, EC Number 231-449-2.

Description
Catalogue Number	106346
Replaces	SX0709; SX0709-5; SX0710; SX0710-1; SX0710-3; SX0710-5; SX0710-20

Product Information
CAS number	10049-21-5
EC number	231-449-2
Grade	ACS,Reag. Ph Eur
Hill Formula	H₂NaO₄P * H₂O
Chemical formula	NaH₂PO₄ * H₂O
Molar Mass	137.99 g/mol
HS Code	2835 22 00

Applications
Application	Sodium dihydrogen phosphate monohydrate for analysis EMSURE® ACS,Reag. Ph Eur. Sodium dihydrogen phosphate monohydrate CAS No. 10049-21-5, EC Number 231-449-2. Sodium dihydrogen phosphate monohydrate MSDS (material safety data sheet) or SDS here.

Physicochemical Information
Density	2.04 g/cm3 (20 °C)
pH value	4.1 - 4.5 (50 g/l, H₂O, 25 °C)
Bulk density	880 kg/m3
Solubility	850 g/l

Toxicological Information
LD 50 oral	LD50 Rat > 2000 mg/kg
LD 50 dermal	LD50 Rabbit > 7940 mg/kg

Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly water endangering
Disposal	14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

Storage and Shipping Information
Storage	Store at +5 °C to +30 °C.

Specifications
Assay (alkalimetric)	99.0 - 102.0 %
Insoluble matter	≤ 0.01 %
pH-value (5 %; water, 25 °C)	4.1 - 4.5
UV absorption (280 nm; 1 mol/l; 1 cm; water)	≤ 0.05
Chloride (Cl)	≤ 0.0005 %
Sulphate (SO₄)	≤ 0.003 %
Total nitrogen (N)	≤ 0.001 %
Heavy metals (as Pb)	≤ 0.0005 %
Ca (Calcium)	≤ 0.005 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.005 %
Corresponds to ACS,Reag. Ph Eur

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