Merck 100244 1000 Citric Acid Monohydrate Gr For Analysis 1 KG.

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Description
Catalogue Number	100244
Replaces	CX1725-1; CX1725-3; CX1725
Synonyms	2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid

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Product Information
CAS number	5949-29-1
EC number	201-069-1
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₆H₈O₇ * H₂O
Molar Mass	210.14 g/mol
HS Code	2918 14 00
Structure formula Image
Quality Level	MQ300

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Physicochemical Information
Density	1.54 g/cm3 (20 °C)
Flash point	173.9 °C Not applicable
Melting Point	135 - 152 °C
pH value	1.8 (50 g/l, H₂O, 20 °C)
Vapor pressure	<1 Pa (25 °C)
Bulk density	800 - 1000 kg/m3
Solubility	880 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 3000 mg/kg

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Safety Information according to GHS
Hazard Pictogram(s)	\n
Hazard Statement(s)	H319: Causes serious eye irritation.\nH335: May cause respiratory irritation.
Precautionary Statement(s)	P261: Avoid breathing dust.\nP264: Wash skin thoroughly after handling.\nP271: Use only outdoors or in a well-ventilated area.\nP280: Wear eye protection/ face protection.\nP304 + P340 + P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word	Warning
RTECS	GE7810000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3\nRelatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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Safety Information
Categories of danger	irritant

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Specifications
Assay (acidimetric, calc. on anhydrous substance)	99.5 - 100.5 %
Identity (IR-spectrum)	passes test
Appearance	white to almost white or colorless crystals
Appearance of solution (200 g/l; water)	clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇
In water insoluble matter	≤ 50 ppm
Chloride (Cl)	≤ 5 ppm
Phosphate (PO₄)	≤ 10 ppm
Sulfate (SO₄)	≤ 20 ppm
Heavy metals (as Pb)	≤ 5 ppm
Al (Aluminium)	≤ 0.2 ppm
As (Arsenic)	≤ 1 ppm
Hg (Mercury)	≤ 1 ppm
Cu (Copper)	≤ 5 ppm
Fe (Iron)	≤ 3 ppm
Fe (Iron, acc. to Reag. Ph  Eur)	suitable to use in the limit test for iron
Pb (Lead)	≤ 0.5 ppm
Oxalates (as C₂H₂O₄)	≤ 50 ppm
Readily carbonisable substance	passes test
Sulfated ash	≤ 200 ppm
Water (according to Karl Fischer)	7.5 - 8.8 %
Corresponds to ACS, ISO 6353/2, Reag. Ph. Eur.