Merck 104871 5000 Potassium Dihydrogen Phosp. Emprove 5 KG.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Description
Catalogue Number	104871
Synonyms	mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Product Information
CAS number	7778-77-0
EC number	231-913-4
Grade	Ph Eur,BP,JPC,NF,E 340
Hill Formula	H₂KO₄P
Chemical formula	KH₂PO₄
Molar Mass	136.09 g/mol
HS Code	2835 24 00
Quality Level	MQ500

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Physicochemical Information
Density	2.33 g/cm3 (21.5 °C)
Melting Point	252.6 °C (decomposition)
pH value	4.2 - 4.6 (20 g/l, H₂O, 20 °C)
Vapor pressure	<0.1 hPa (25 °C)
Bulk density	1200 kg/m3
Solubility	208 g/l

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Toxicological Information
LD 50 dermal	LD50 Rabbit > 4640 mg/kg

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Safety Information according to GHS
RTECS	TC6615500
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	14\nInorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

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

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

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

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Specifications
Assay (alkalimetric, calculated on dried substance)	98.0 - 100.5 %
Assay (alkalimetric; dried substance)	≥ 99.0 %
Appearance of solution	passes test
Identity	passes test
Insoluble substances	≤ 0.2 %
pH-value (1 %; water)	4.2 - 4.8
pH-value (2 %; water)	4.2 - 4.6
pH-value (5 %; water)	4.2 - 4.5
Carbonate	passes test
Condensed phosphate	passes test
Chloride (Cl)	≤ 0.009 %
Fluoride (F)	≤ 0.0010 %
Sulfate (SO₄)	≤ 0.017 %
Heavy metals (as Pb)	≤ 0.0010 %
Al (Aluminium)	≤ 0.0005 %
As (Arsenic)	≤ 0.0001 %
Cd (Cadmium)	≤ 0.0001 %
Fe (Iron)	≤ 0.0010 %
Hg (Mercury)	≤ 0.0001 %
Na (Sodium)	≤ 0.1 %
	passes test
Pb (Lead)	≤ 0.0001 %
Sb (Antimony) (*)	≤ 0.0009
Residual solvents (ICH Q3C)	excluded by manufacturing process
Reducing substances	passes test
Loss on drying (105 °C)	≤ 0.5 %
Loss on drying (130 °C)	≤ 1.0 %
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Corresponds to Ph Eur, BP, JPC, NF, E 340\nConforms to the purity criteria on food additives according to the current European Commission Regulation.