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13418

Sigma-Aldrich

Sodium carbonate

puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

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Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
Beilstein:
4154566
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

puriss.

Assay

99.5-100.5% (calc. to the dried substance)

form

powder or crystals

quality

meets analytical specification of Ph. Eur., BP, NF, FCC, E500

impurities

alkali hydroxides and bicarbonates, complies
residual solvents
<5 ppm heavy metals (as Pb)

loss

≤0.5% loss on drying, 300 °C
<0.5% loss on drying, 105°C, 4hrs

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤4 mg/kg
Pb: >2 ppm
Zn: ≤20 mg/kg

suitability

complies for appearance of solution

storage temp.

15-25°C

SMILES string

O=C(O[Na])O[Na]

InChI

1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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This Item
SX0400900504900505
Sodium carbonate puriss., meets analytical specification of Ph.&nbsp;Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

Sigma-Aldrich

13418

Sodium carbonate

Essential Grade
Sodium carbonate anhydrous, granular, Meets ACS Specifications GR ACS

Supelco

SX0400

Sodium carbonate

-
Sodium carbonate anhydrous, free-flowing, Redi-Dri&#8482;, ACS reagent (primary standard), 99.95-100.05% dry basis

Sigma-Aldrich

900504

Sodium carbonate

-
Sodium carbonate anhydrous, free-flowing, Redi-Dri&#8482;, ReagentPlus&#174;, &#8805;99.5%

Sigma-Aldrich

900505

Sodium carbonate

-
assay

99.5-100.5% (calc. to the dried substance)

assay

≥99.9% dry basis (acidimetric)

assay

99.95-100.05% dry basis

assay

≥99.5%

form

powder or crystals

form

powder

form

powder

form

powder

impurities

alkali hydroxides and bicarbonates, complies, residual solvents, <5 ppm heavy metals (as Pb)

impurities

≤0.01% Insoluble matter

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

-

pH

12 (25 °C, 106 g/L)

pH

11.16 (25 °C, 4 g/L in H2O)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

Biochem/physiol Actions

Buffer component, may be used for the removal of peripheral membrane proteins.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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