MERCK 105867.9029 Magnesium Oxide Heavy Extra Pure Ph Eur,Bp,Usp \ CAS No.1309-48-4 (SD.M.105867.9029)

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MERCK 105867.9029 Magnesium Oxide Heavy Extra Pure Ph Eur,Bp,Usp \ CAS No.1309-48-4

Description
Catalogue Number	105867
Synonyms	Magnesia usta

Physicochemical Information
Boiling point	3600 °C (1000 hPa)
Density	3.580 g/cm3
Melting Point	2852 °C
pH value	10.3 (H₂O, 20 °C) (saturated solution)
Bulk density	100 kg/m3

Safety Information according to GHS
RTECS	OM3850000
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 +15°C to +25°C.

Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

Specifications
Assay (complexometric, calc. on the ignited basis)	98.0 - 100.5 %
Assay (complexometric, calculated on the ignited basis according to USP)	96.0 - 100.5 %
Assay (complexometric, calculated on the ignited basis according to ChP)	96.5 - 101.0 %
Identity	passes test
Appearance of solution (Ph Eur)	passes test
Appearance of solution (ChP)	passes test
Substances soluble in water (Ph Eur)	≤ 1.0 %
Substances soluble in water (USP)	≤ 1.0 %
Substances soluble in water (ChP)	≤ 2.0 %
Substances insoluble in acetic acid	≤ 0.1 %
Substances insoluble in acid (USP)	≤ 0.1 %
Substances insoluble in acid (ChP)	≤ 0.10 %
Free alkali (as NaOH)	≤ 0.6 %
Alkalinity (ChP)	passes test
Carbonate (CO₃)	passes test
Chloride (Cl)	≤ 0.1 %
Heavy metals (as Pb)	≤ 0.0020 %
Sulfate (SO₄)	≤ 0.3 %
Al (Aluminium)	≤ 0.01 %
As (Arsenic)	≤ 0.0003 %
Ca (Calcium)	≤ 0.80 %
CaO (Calcium oxide)	≤ 0.50 %
Cr (Chromium)	≤ 0.0025 %
Fe (Iron)	≤ 0.05 %
Mn (Manganese)	≤ 0.003 %
Na (Sodium)	≤ 0.1 %
Ni (Nickel) (*)	≤ 0.0025 %
Si (Silicon)	≤ 0.05 %
V (Vanadium) (*)	≤ 0.0025 %
Residual solvents (ICH Q3C)	excluded by manufacturing process
Loss on ignition (900 °C)	≤ 5.0 %
Bulk density	≥ 0.25 g/ml
Apparent volume (≤ 60 mL / 15 g)	passes test
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Corresponds to Ph Eur, BP, ChP, USP

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