Sodium acetate trihydrate puriss. p.a. ACS reagent reag. ISO reag. Ph. Eur. >=99.5%

Name: Sodium acetate trihydrate puriss. p.a. ACS reagent reag. ISO reag. Ph. Eur. >=99.5%
Brand: SIGMA-ALDRICH
SKU: 32318-500G-M
Price: 58.66 EUR

Code: 32318-500G-M D2-231

Application

Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.

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OVERVIEW

SPECIFICATIONS

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ATTRIBUTES

Application
Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.
General description
Sodium acetate trihydrate can be obtained from the crystallization of sodium acetate in water. On heating at 75°C, it melts, while on heating above 120°C it loses water of crystallization and gets converted into anhydrous form. The hyperfine proton and ¹³C splittings have been evaluated by recording ESR spectra of its irradiated single crystals. ESR studies suggested the existence of trapped methyl radicals. Its crystals are monoclinic and its crystal structure has been investigated by photographic methods. Unit cell parameters were evaluated.
Other Notes
Enzyme substrate for acetate kinase (EC 2.7.2.1)

agency reag. ISO, USP/NF, reag. Ph. Eur.
anion traces phosphate (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg, chloride (Cl^-): ≤0.001%
assay ≥99.5%
autoignition temp. 1112 °F
cation traces K: ≤50 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Al: ≤0.2 mg/kg, Zn: ≤5 mg/kg, As: ≤2 mg/kg, Cd: ≤5 mg/kg
form crystalline
grade puriss. p.a., ACS reagent
impurities ≤0.005% KMnO₄ red. matter (as HCOOH), ≤0.0005% heavy metals (as Pb), ≤0.005% in water soluble matter
InChI key AYRVGWHSXIMRAB-UHFFFAOYSA-M
InChI 1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1
loss 39.0-40.5% loss on drying, 130 °C
pH 7.5-9.0 (20 °C, 5%)
Quality Level 100
SMILES string O.O.O.[Na+].CC([O-])=O
suitability in accordance for appearance of solution

Safety Data Sheet
Safety Data Sheet for 32318-500G-M

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Cas Number 6131-90-4

This product has met the following criteria to qualify for the following awards:

Sodium acetate trihydrate puriss. p.a. ACS reagent reag. ISO reag. Ph. Eur. >=99.5%

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agency	reag. ISO, USP/NF, reag. Ph. Eur.
anion traces	phosphate (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg, chloride (Cl^-): ≤0.001%
assay	≥99.5%
autoignition temp.	1112 °F
cation traces	K: ≤50 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Al: ≤0.2 mg/kg, Zn: ≤5 mg/kg, As: ≤2 mg/kg, Cd: ≤5 mg/kg
form	crystalline
grade	puriss. p.a., ACS reagent
impurities	≤0.005% KMnO₄ red. matter (as HCOOH), ≤0.0005% heavy metals (as Pb), ≤0.005% in water soluble matter
InChI key	AYRVGWHSXIMRAB-UHFFFAOYSA-M
InChI	1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1
loss	39.0-40.5% loss on drying, 130 °C
pH	7.5-9.0 (20 °C, 5%)
Quality Level	100
SMILES string	O.O.O.[Na+].CC([O-])=O
suitability	in accordance for appearance of solution