کلسیم هیدروکساید 500 گرمی کد 102047 مرک

Description
Catalogue Number	102047
Replaces	CX0220; CX0220-1
Description	Calcium hydroxide

Product Information
CAS number	1305-62-0
EC number	215-137-3
Grade	ACS,Reag. Ph Eur
Hill Formula	H₂CaO₂
Chemical formula	Ca(OH)₂
Molar Mass	74.09 g/mol
HS Code	2825 90 19

Applications
Application	Calcium hydroxide for analysis EMSURE® ACS,Reag. Ph Eur. CAS 1305-62-0, chemical formula Ca(OH)₂.

Physicochemical Information
Density	2.24 g/cm3 (20 °C)
Melting Point	550 °C (decomposition)
pH value	12.6 (H₂O, 20 °C) (saturated solution)
Bulk density	400 kg/m3
Solubility	1.7 g/l

Toxicological Information
LD 50 oral	LD50 Rat 7340 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H315: Causes skin irritation. H318: Causes serious eye damage. H335: May cause respiratory irritation.
Precautionary Statement(s)	P260: Do not breathe dust. P280: Wear eye protection. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention.
RTECS	EW2800000
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).

Safety Information
Hazard Symbols	Irritant
Categories of danger	irritant
R Phrase	R 37/38-41 Irritating to respiratory system and skin.Risk of serious damage to eyes.
S Phrase	S 22-26-39 Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.

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

Specifications
Assay (acidimetric)	≥ 96.0 %
Substances insoluble in hydrochloric acid	≤ 0.03 %
Carbonate (as CaCO₃)	≤ 3.0 %
Chloride (Cl)	≤ 0.005 %
Sulfur compounds (as SO₄)	≤ 0.1 %
Heavy metals (as Pb)	≤ 0.003 %
Fe (Iron)	≤ 0.05 %
K (Potassium)	≤ 0.05 %
Mg (Magnesium)	≤ 0.5 %
Na (Sodium)	≤ 0.05 %
Sr (Strontium)	≤ 0.05 %
Conforms ACS, Reag. Ph. Eur.