استاندارد منیزیم 109949 مرک

Description
Catalogue Number	109949

Product Information
HS Code	3822 00 00

Physicochemical Information
Density	1.09 g/cm3 (20 °C)
pH value	<1 (H₂O, 20 °C)

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H290: May be corrosive to metals.
Storage class	8B Non-combustible, corrosive hazardous materials
WGK	WGK 1 slightly water endangering
Disposal	12 Inorganic acids and anhydrides thereof should first be diluted or hydrolyzed by stirring carefully into ice water and then neutralized (protective gloves, fume cupboard!) with sodium hydroxide solution (Cat. No. 105587). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). Fuming sulfuric acid should be carefully stirred dropwise into 40 % sulfuric acid (Cat. No. 109286). Ensure that plenty of ice is available for cooling! When sufficiently cool, treat the highly concentrated sulfuric acid as described above. Analogous to this procedure, other anhydrides can be converted into their corresponding acids. Acid gases (e.g. hydrogen halide, chlorine, phosgene, sulfur dioxide) can be introduced into dilute sodium hydroxide solution and after neutralization disposed of in container D.

Storage and Shipping Information
Storage	Storage temperature: no restrictions.

Transport Information
Declaration (railroad and road) ADR, RID	UN 1789 , 8, II
Declaration (transport by air) IATA-DGR	UN 1789 , 8, II
Declaration (transport by sea) IMDG-Code	UN 1789 , 8, II, Segregation Group: 1 (Acids)

Specifications
content (Mg)	1000 mg / Ampoule
Determination method: Complexometric titration. (traceable to NIST - SRM 682) Accuracy of the method: +/- 2 mg