Merck 100468 0500 Ascorbic Acid for analysis EMSURE 500 GR.

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Description
Catalogue Number	100468

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Product Information
CAS number	50-81-7
EC number	200-066-2
Grade	ACS,Reag. Ph Eur
Hill Formula	C₆H₈O₆
Molar Mass	176.12 g/mol
HS Code	2936 27 10
Structure formula Image
Quality Level	MQ300

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Physicochemical Information
Density	1.65 g/cm3 (20 °C)
Ignition temperature	380 °C
Melting Point	193 °C (decomposition)
pH value	2.2 - 2.5 (50 g/l, H₂O, 20 °C)
Bulk density	500 - 900 kg/m3
Solubility	330 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 11900 mg/kg

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Safety Information according to GHS
RTECS	CI7650000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water

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Storage and Shipping Information
Storage	Store at +15°C to +25°C.

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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

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Specifications
Assay (iodometric)	99.0 - 100.5 %
Identity (IR-spectrum)	conforms
Appearance	white or almost white, cristalline powder
Appearance of solution (50 g/l CO₂-free water)	clear (≤ 3 NTU) and not so intense in colour than reference solution BY₇
pH (50 g/l CO₂-free water)	2.1 - 2.6
Spec. rotation [α²0/D (100 g/l, water)	+20.5 - +21.5 °
Chloride (Cl)	≤ 50 ppm
Sulfate (SO₄)	≤ 20 ppm
Cu (Copper)	≤ 5 ppm
Fe (Iron)	≤ 2 ppm
Heavy metals (ACS)	≤ 10 ppm
Oxalic acid	≤ 0.2
Related substances (HPLC) (Impurity C)	≤ 0.15 %
Related substances (HPLC) (Impurity D)	≤ 0.15 %
Related substances (HPLC) (unspecified impurities singly)	≤ 0.10 %
Related substances (HPLC) (sum of impurities (except impurity C and D))	≤ 0.2 %
Sulfated ash (600 °C)	≤ 0.05 %
Loss on Drying (105 °C)	≤ 0.1 %