Merck 100540 1000 Phosphorus Pentoxide Extra Pure 1 KG.

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Description
Catalogue Number	100540
Synonyms	phosphoric anhydride, Phosphoric anhydride
Description	di-Phosphorus pentoxide

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Product Information
CAS number	1314-56-3
EC index number	015-010-00-0
EC number	215-236-1
Hill Formula	O₅P₂
Chemical formula	P₂O₅
Molar Mass	141.95 g/mol
HS Code	2809 10 00
Quality Level	MQ200

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Physicochemical Information
Density	2.5 g/cm3 (20 °C)
Melting Point	420 °C (closed capillary tube)
pH value	3.6 (0.1 g/l, H₂O)
Vapor pressure	<0.1 hPa (20 °C)
Bulk density	700 kg/m3
Solubility	850 g/l Risk of violent reaction.

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Safety Information according to GHS
Hazard Pictogram(s)	\n
Hazard Statement(s)	H314: Causes severe skin burns and eye damage.\nEUH014: Reacts violently with water.
Precautionary Statement(s)	P260: Do not breathe dust.\nP280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.\nP303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.\nP304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.\nP363: Wash contaminated clothing before reuse.
Signal Word	Danger
Storage class	8B Non-combustible, corrosive hazardous materials
WGK	WGK 1 slightly hazardous to water
Disposal	12\nInorganic 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.

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Safety Information
Categories of danger	corrosive

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Storage and Shipping Information
Storage	NoTempLimit

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Transport Information
Declaration (railroad and road) ADR, RID	UN 1807 , 8, II
Declaration (transport by air) IATA-DGR	UN 1807 , 8, II
Declaration (transport by sea) IMDG-Code	UN 1807 , 8, II, Segregation Group: 1 (Acids)

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Specifications
Assay (acidimetric)	≥ 97.0 %
Identity	passes test
Chloride (Cl)	≤ 50 ppm
Heavy metals (as Pb)	≤ 100 ppm
Reducing matter (P₂O₃)	≤ 0.02 %