Merck 1.00573 Orto-phorphoric acid 85% for analysis EMSURE® ACS,ISO,Reag. pH Eur 2.5 L

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MERCK

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LB.M.100573.2511

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Synonym(s): Phosphoric acid, o-Phosphoric acid, Orthophosphoric acid, Orthophosphoric acid Linear Formula: H3PO4 CAS Number: 7664-38-2 Molecular Weight: 98.00 Beilstein: 1921286 MDL number: MFCD00011340

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CAS Number: 7664-38-2

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Merck 1.00573 Orto-phorphoric acid 85% for analysis EMSURE® ACS,ISO,Reag. pH Eur 2.5 L
Catalogue Number	100573
Synonyms	o-Phosphoric acid, Orthophosphoric acid

Merck 1.00573 Orto-phorphoric acid 85% for analysis EMSURE® ACS,ISO,Reag. pH Eur

Product Information
CAS number	7664-38-2
Grade	ACS,ISO,Reag. Ph Eur
HS Code	2809 20 00
Quality Level	MQ300

Physicochemical Information
Boiling point	158 °C (1013 mbar)
Density	1.71 g/cm3 (20 °C)
Melting Point	21 °C
pH value	<0.5 (100 g/l, H₂O, 20 °C)
Vapor pressure	2 hPa (20 °C)
Viscosity kinematic	30.5 mm2/s (20 °C)

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H290: May be corrosive to metals. H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage.
Precautionary Statement(s)	P234: Keep only in original packaging. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + 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	Danger
Storage class	8B Non-combustible, corrosive hazardous materials
WGK	WGK 1 slightly hazardous to water
Disposal	12 Inorganic 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.

Safety Information
Categories of danger	corrosive

Storage and Shipping Information
Storage	NoTempLimit

Transport Information
Declaration (railroad and road) ADR, RID	UN 1805 , 8, III
Declaration (transport by air) IATA-DGR	UN 1805 , 8, III
Declaration (transport by sea) IMDG-Code	UN 1805 , 8, III, Segregation Group: 1 (Acids)

Specifications
Assay (alkalimetric)	≥ 85.0 %
Identity	passes test
Appearance of solution	passes test
Color	≤ 10 Hazen
Chloride (Cl)	≤ 2 ppm
Fluoride (F)	≤ 1 ppm
Nitrate (NO₃)	≤ 3 ppm
Phosphite and Hypophosphite (as H₃PO₃)	≤ 20 ppm
Hypophosphite, phosphite	passes test
Heavy metals (as Pb)	≤ 10 ppm
Sulfate (SO₄)	≤ 20 ppm
As (Arsenic)	≤ 0.5 ppm
Ca (Calcium)	≤ 20 ppm
Cd (Cadmium)	≤ 0.5 ppm
Co (Cobalt)	≤ 0.5 ppm
Cu (Copper)	≤ 0.5 ppm
Fe (Iron)	≤ 10 ppm
K (Potassium)	≤ 5 ppm
Mg (Magnesium)	≤ 5 ppm
Mn (Manganese)	≤ 0.5 ppm
Na (Sodium)	≤ 200 ppm
Ni (Nickel)	≤ 1.0 ppm
Pb (Lead)	≤ 0.5 ppm
Sb (Antimony)	≤ 5 ppm
Zn (Zinc)	≤ 2 ppm
Matter precipitated by ammonia	passes test
Volatile acids (as Acetic acid)	≤ 10 ppm
Substances reducing potassium permanganate (as O)	≤ 10 ppm
Insoluble matter	≤ 10 ppm

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