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Company Directory > Dyes & Chemicals > Chemicals >

Sigma-Aldrich

Secunderabad, Andhra Pradesh

IndiaMART Member Since: 2007
Products [50]
Phone: +(91)-(40)-55315488

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Chemistry Equipment And Labware (11)

Inorganic Salts

Calcium

Calcium Acetate hydrate:

Linear Formula:	(CH₃COO)₂Ca · xH₂O
Molecular Weight:	158.17 (anhydrous basis)

Description:

Packaging

5, 25 g in poly btl

Properties:

assay	99.99% trace metals basis
total impurities	<1% acetic acid

Barium

Barium Acetate:

Linear Formula:	(CH₃COO)₂Ba
Molecular Weight:	255.42

Properties:

grade	purum p.a.
assay	≥98.0% (KT)
pH	6.5-8.5 (25 °C, 50 mg/mL in H₂O)
anion traces	chloride (Cl^-): ≤50 mg/kg
cation traces	Ca: ≤50 mg/kg
	Cd: ≤50 mg/kg
	Co: ≤50 mg/kg
	Cu: ≤50 mg/kg
	Fe: ≤50 mg/kg
	K: ≤100 mg/kg
	Na: ≤100 mg/kg
	Ni: ≤50 mg/kg
	Pb: ≤50 mg/kg
	Sr: ≤2000 mg/kg
	Zn: ≤50 mg/kg

Sodium

Sodium acetate

Linear Formula:	CH₃COONa
Molecular Weight:	82.03

Description

Packaging	1 kg in poly btl
	100, 500 g in poly btl
	2.5 kg in poly drum
	5 g in glass btl

Properties

grade	ACS reagent
assay	≥99.0%
form	solid
autoignition temp.	1112 °F
total impurities	≤0.01% insolubles
loss	≤1.0% loss on drying
pH	7.0-9.2 (25 °C, 5%)
pKa	4.76 (acetic acid)
mp	>300 °C (dec.)(lit.)
anion traces	chloride (Cl^-): ≤0.002%
	phosphate (PO₄^3-): ≤0.001%
	sulfate (SO₄^2-): ≤0.003%
cation traces	Ca: ≤0.005%
	Fe: ≤0.001%
	Mg: ≤0.002%
	heavy metals (as Pb): ≤0.001%

Strontium

Strontium chloride hexahydrate:

Linear Formula:	SrCl₂ · 6H₂O
Molecular Weight:	266.62

Properties:

grade	ACS reagent
	puriss. p.a.
assay	99.0-102.0%
total impurities	≤0.0005% heavy metals (as Pb)
pH	5.0-7.0 (20 °C, 5%)
mp	115 °C(lit.)
anion traces	sulfate (SO₄^2-): ≤10 mg/kg
cation traces	Ba: ≤20 mg/kg
	Ca: ≤100 mg/kg
	Cu: ≤2 mg/kg
	Fe: ≤5 mg/kg
	K: ≤50 mg/kg
	Mg: ≤2 mg/kg
	Na: ≤100 mg/kg
	Pb: ≤2 mg/kg

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