Product Information
CAS number	6131-90-4
EC number	204-823-8
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₂H₃NaO₂ * 3 H₂O
Chemical formula	CH₃COONa * 3 H₂O
Molar Mass	136.08 g/mol
HS Code	2915 29 00
Structure formula Image

Applications
Application	Sodium acetate trihydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. CAS No. 6131-90-4, EC Number 204-823-8.

Physicochemical Information
Density	1.42 g/cm3 (20 °C)
Flash point	>250 °C (anhydrous substance)
Ignition temperature	607 °C
Melting Point	58 °C
pH value	7.5 - 9.2 (50 g/l, H₂O, 20 °C)
Bulk density	900 kg/m3
Solubility	613 g/l

Toxicological Information
LD 50 oral	LD50 Rat 3530 mg/kg
LD 50 dermal	LD50 Rabbit > 10000 mg/kg

Safety Information according to GHS
RTECS	AJ4580000
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).

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 (perchloric acid titration)	99.0 - 101.0 %
Assay (perchloric acid titration, calculated on dried substance)	99.0 - 101.0 %
Identity	passes test
Appearance of solution	passes test
Insoluble matter	≤ 0.005 %
pH-value (5 %; water)	7.5 - 9.0
Chloride (Cl)	≤ 0.0005 %
Phosphate (PO₄)	≤ 0.0002 %
Sulphate (SO₄)	≤ 0.002 %
Total nitrogen (N)	≤ 0.001 %
Heavy metals (as Pb)	≤ 0.0005 %
Al (Aluminium)	≤ 0.0005 %
As (Arsenic)	≤ 0.0002 %
Ca (Calcium)	≤ 0.001 %
Cu (Copper)	≤ 0.0003 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.005 %
Mg (Magnesium)	≤ 0.0005 %
Pb (Lead)	≤ 0.0005 %
Calcium and Magnesium (as Ca)	≤ 0.005 %
Substances reducing permanganate	passes test
Reducing substances	≤ 0.005 %
Loss on drying (130 °C)	39.0 - 40.5 %
UV absorption (254 nm; 1 mol/l; 1 cm; water)	≤ 0.02
UV absorption (280 nm; 1 mol/l; 1 cm; water)	≤ 0.01
UV absorption (350 nm; 1 mol/l; 1 cm; water)	≤ 0.01
Corresponds to ACS,ISO,Reag. Ph Eur

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MERCK 106267 Sodium acetate trihydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. CAS No. 6131-90-4, EC Number 204-823-8

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