پتاسیم دی هیدروژن فسفات 104871 مرک

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

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	136.08 g/mol
HS Code	2835 24 00

Physicochemical Information
Density	2.33 g/cm3 (21.5 °C)
Melting Point	253 °C (decomposition)
pH value	4.2 - 4.6 (20 g/l, H₂O, 20 °C)
Bulk density	1200 kg/m3
Solubility	208 g/l

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

Safety Information according to GHS
Precautionary Statement(s)	P260: Do not breathe dust.
RTECS	TC6615500
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly water endangering
Disposal	14 Inorganic 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).

Safety Information
S Phrase	S 22 Do not breathe dust.

Storage and Shipping Information
Storage	Store at +5°C to +30°C.

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

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 %
Sulphate (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 %
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 %
Residues of metal catalysts or metal reagents acc. to EMEA/CHMP/SWP/4446/2000 are not likely to be present. The product is tested according to all analytical parameters of the declared pharmacopeias including the limits for parenteral use.
Corresponds to Ph Eur, BP, JPC, NF, E 340 Conforms to the purity criteria on food additives according to the current European Commission Regulation.