Merck 100042 Acetic anhydride for analysis EMSURE® ACS,ISO,Reag. Ph Eur 2.5 L

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MERCK

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LB.M.100042.2500

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Synonym(s): Acetic anhydride, Acetyl acetate, Acetyl oxide Linear Formula: (CH3CO)2O CAS Number: 108-24-7 Molecular Weight: 102.09 MDL number: MFCD00008705 EC Index Number: 203-564-8

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Merck 100042 Acetic anhydride for analysis EMSURE® ACS,ISO,Reag. Ph Eur 2.5 L
Catalogue Number	100042
Synonyms	Acetyl acetate, Acetyl oxide

Merck 100042 Acetic anhydride for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Product Information
CAS number	108-24-7
EC index number	607-008-00-9
EC number	203-564-8
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₄H₆O₃
Chemical formula	(CH₃CO)₂O
Molar Mass	102.08 g/mol
HS Code	2915 24 00
Structure formula Image

Applications
Application	Acetic anhydride for analysis EMSURE® ACS,ISO,Reag. Ph Eur. Acetic anhydride CAS No. 108-24-7, EC Number 203-564-8. Acetic anhydride MSDS (material safety data sheet) or SDS here.

Physicochemical Information
Density	1.08 g/cm3 (20 °C)
Evaporation number	0.46
Explosion limit	2.0 - 10.2 %(V)
Flash point	49 °C
Ignition temperature	330 °C
Melting Point	-73 °C
pH value	3 (10 g/l, H₂O, 20 °C)
Vapor pressure	4 hPa (20 °C)

Toxicological Information
LD 50 oral	LD50 Rat 630 mg/kg
LD 50 dermal	LD50 Rabbit 4320 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H226: Flammable liquid and vapour. H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage. H330: Fatal if inhaled.
Precautionary Statement(s)	P210: Keep away from heat. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. 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. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class	3 Flammable liquids
WGK	WGK 1 slightly water endangering
Disposal	11 Organic acid halides, anhydrides and isocyanates can be added dropwise to an excess of methanol (Cat. No. 822283) to convert them into the corresponding methyl esters or methyl carbamates. If necessary, neutralize with sodium hydroxide solution (Cat. No. 105587). Fill into container A.

Safety Information
Hazard Symbols	Corrosive
Categories of danger	flammable, harmful, corrosive
R Phrase	R 10-20/22-34 Flammable.Harmful by inhalation and if swallowed.Causes burns.
S Phrase	S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

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

Transport Information
Declaration (railroad and road) ADR, RID	UN 1715 , 8 (3), II
Declaration (transport by air) IATA-DGR	UN 1715 , 8 (3), II
Declaration (transport by sea) IMDG-Code	UN 1715 , 8 (3), II, Segregation Group: 1 (Acids)

Specifications
Purity (GC)	≥ 98.5 %
Identity (IR)	conforms
Appearance	clear
Colour	≤ 10 Hazen
Boiling point	136 - 142 °C
Chloride (Cl)	≤ 2 ppm
Sulphate (SO₄)	≤ 5 ppm
Phosphate (PO₄)	≤ 5 ppm
Heavy metals (as Pb)	≤ 2 ppm
Readily carbonizable substances	conforms
Substances reducing potassium permanganate (as O)	≤ 150 ppm
Al (Aluminium)	≤ 0.5 ppm
B (Boron)	≤ 0.02 ppm
Ba (Barium)	≤ 0.1 ppm
Ca (Calcium)	≤ 0.5 ppm
Cd (Cadmium)	≤ 0.05 ppm
Co (Cobalt)	≤ 0.02 ppm
Cr (Chromium)	≤ 0.05 ppm
Cu (Copper)	≤ 0.02 ppm
Fe (Iron)	≤ 0.1 ppm
Mg (Magnesium)	≤ 0.1 ppm
Mn (Manganese)	≤ 0.02 ppm
Ni (Nickel)	≤ 0.02 ppm
Pb (Lead)	≤ 0.1 ppm
Sn (Tin)	≤ 0.1 ppm
Zn (Zinc)	≤ 0.1 ppm
Evaporation residue	≤ 20 ppm

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