磷酸氫二鈉 GR for analysis EMSURE®,500g|Merck

貨號: MRK-1.06580.0500 分類:

描述

 

CAS # EC Number Hill Formula Chemical Formula Molar Mass
10028-24-7 231-448-7 HNa₂O₄P * 2 H₂O Na₂HPO₄ * 2 H₂O 177.99 g/mol
Description
Catalogue Number 106580
Replaces 1.06580.9057; SX0713; SX0713-5
Synonyms Sodium monohydrogen phosphate, Sodium phosphate dibasic
Description di-Sodium hydrogen phosphate dihydrate

 

Product Information
CAS number 10028-24-7
EC number 231-448-7
Hill Formula HNa₂O₄P * 2 H₂O
Chemical formula Na₂HPO₄ * 2 H₂O
Molar Mass 177.99 g/mol
HS Code 2835 22 00
Quality Level MQ300

 

Physicochemical Information
Density 2.1 g/cm3 (20 °C)
Melting Point 92.5 °C 除去結晶水
pH value 9.0 – 9.4 (50 g/l, H₂O, 20 °C)
Bulk density 850 – 1000 kg/m3
Solubility 93 g/l

 

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

 

Safety Information according to GHS
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
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 (acidimetric) ≥ 99.5 %
Identity passes test
pH-value (5 %; water) 9.0 – 9.2
Chloride (Cl) ≤ 0.001 %
Sulfate (SO₄) ≤ 0.005 %
Total nitrogen (N) ≤ 0.001 %
Heavy metals (as Pb) ≤ 0.001 %
Cu (Copper) ≤ 0.0003 %
Fe (Iron) ≤ 0.001 %
K (Potassium) ≤ 0.005 %
Pb (Lead) ≤ 0.001 %

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