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Mubychem Group, established in 1976, is the pioneer manufacturer of Zinc Chloride, Ammonium Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate, Sodium Thiosulphate, Sodium Propionate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Sodium Propionate BP Sodium Propionate USP NF Manufacturers
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Propionate; Door Delivery
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Sodium Propionate
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Sodium Propionate BP British Pharmacopoeia
C3H5NaO2
96.1 -- 137-40-6
Action and use
Antifungal
DEFINITION
Sodium propionate
Content
99.0 per cent to 101.0 per cent Sodium propionate (dried substance).
CHARACTERS
Appearance
Colourless crystals or, white or almost white powder,
slightly hygroscopic.
Solubility
Freely soluble in water, sparingly soluble in alcohol,
practically insoluble in methylene chloride.
IDENTIFICATION
First identification A,
D.
Second identification B,
C, D.
A. Infrared
absorption spectrophotometry.
Comparison reference
spectrum of sodium propionate.
B. Dissolve 0.1 g in
a mixture of 2 ml of copper sulphate solution and 2 ml of methylene
chloride. Shake vigorously and allow to stand. Both the upper and the lower
layer show a blue colour.
C. To 5 ml of
solution S add 2 ml of 0.1 M silver nitrate. A white precipitate is
formed.
D. Solution S gives
reaction of sodium.
TESTS
Solution S
Dissolve 10 g Sodium propionate in carbon dioxide-free water
prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution
Solution S is clear and colourless.
pH
7.8 to 9.2
Dilute 1 ml of solution S to 5 ml with water.
Related substances
Liquid chromatography.
Test solution: Dissolve
0.250 g of the substance to be examined in water and dilute to 100 ml
with the same solvent.
Reference solution (a) Dissolve
10 mg of the substance to be examined and 10 mg of sodium acetate in
water and dilute to 100 ml with the same solvent.
Reference solution (b) Dilute
1.0 ml of the test solution to 100 ml with water.
Column: ı
ı size:
l
= 0.25 m, Ĝ = 4.6 mm;
ı stationary
phase: octadecylsilyl silica gel for chromatography (5μm).
Mobile phase Dilute
1 ml of phosphoric acid R to 1000 ml with water.
Flow rateı1
ml/min.
Detection Spectrophotometer
at 210 nm.
Injectionı20
μl.
System suitability Reference
solution (a):
ı resolution:
minimum 5 between the peaks due to sodium acetate and sodium propionate.
Limits:
ı any impurity:
not more than 0.1 times the area of the principal peak in the chromatogram
obtained with reference solution (b) (0.1 per cent);
ı total: not
more than half the area of the principal peak in the chromatogram obtained with
reference solution (b) (0.5 per cent);
ı disregard
limit: 0.05 times the area of the principal peak in the chromatogram
obtained with reference solution (b) (0.05 per cent).
Readily
oxidizable substances
In a
ground-glass-stoppered conical flask introduce 10 g of the substance ( Sodium propionate.) to be
examined.
Add 100 ml
of water R and stir to dissolve. Add 25 ml of sodium hypobromite
solution and 10 ml of a 200 g/l solution of sodium acetate, stopper
the flask and allow to stand for 15 min. Add 10 ml of potassium iodide
solution and 20 ml of hydrochloric acid while cooling.
Titrate
with 0.2 M sodium thiosulphate, adding 2 ml of starch solution R towards the end of the titration. Carry out a blank titration. The difference
between the volumes used in the 2 titrations is not greater than 2.2 ml.
Iron
Maximum 10
ppm.
10 ml of
solution S complies with the limit test for iron.
Heavy
metals
Maximum 10
ppm.
12 ml of
solution S complies with limit test A. Prepare the standard using lead
standard solution (1 ppm Pb).
Loss on
drying
Maximum 0.5
per cent, determined on 1.000 g by heating in an oven at 105C for 3 h.
ASSAY
Dissolve
80.0 mg
Sodium propionate in 30 ml of anhydrous acetic acid R. Titrate with
0.1 M
perchloric acid, determining the end-point potentiometrically.
1 ml of 0.1 M perchloric acid is equivalent to 9.61 mg of C3H5NaO2.
Sodium Propionate FCC as per Food Chemical Codex
Sodium Propionate
CH3CH2COONa
C3H5NaO2
Formula wt 96.06
INS: 281
CAS: [137-40-6]
DESCRIPTION
Sodium
Propionate occurs as white or colorless, transparent crystals or as a granular,
crystalline powder. It is hygroscopic in moist air. One gram is soluble in about
1 mL of water at 25°, in about 0.65 mL of boiling water, and in about 24 mL of
alcohol. The pH of a 1:10 aqueous solution is between 8.0 and 10.5.
Function: Preservative; mold inhibitor.
REQUIREMENTS
Identification:
A. A 1:20
aqueous solution gives positive tests for Sodium.
B. Upon
ignition, a sample yields an alkaline residue that effervesces with acids.
C. Warm a
small sample with sulfuric acid. Propionic acid, recognized by its odor,
evolves.
Assay: Not less than 99.0% and not more than 100.5% of C3H5NaO2 after drying.
Alkalinity (as Na2CO3): Passes test (about 0.15%).
Iron: Not more than 0.003%.
Lead: Not more than 2 mg/kg.
Water: Not more
than 1%.
Sodium Propionate NF USP
Sodium
Propionate
C3H5NaO2·xH2O
Propanoic
acid, sodium salt, hydrate.
Sodium propionate hydrate [6700-17-0]
Anhydrous 96.06 [137-40-6]
Sodium
Propionate, dried at 105 for 2 hours, contains not less than 99.0 percent and
not more than 100.5 percent of C3H5NaO2.
Identification
A: Infrared Absorption 197K , on un-dried specimen.
B: A
solution (1 in 20) responds to the tests for Sodium.
Alkalinity Dissolve 2.0 g in 20 mL of water, and add phenolphthalein TS: if
a pink color is produced, it is discharged by 0.60 mL of 0.10 N sulfuric acid.
Water: not more than 1.0%.
Heavy metals Dissolve 2 g in 1 mL of 1 N acetic acid
and sufficient water to make 25 mL: the limit is 0.001%.
Organic
volatile impurities: meets the requirements.
(Official
until July 1, 2007)
Assay
Dissolve about 200 mg of Sodium Propionate, previously dried at 105 for 2
hours and accurately weighed, in 50 mL of glacial acetic acid. Add 1 drop of
crystal violet TS, and titrate with 0.1 N perchloric acid VS to a green
endpoint. Perform a blank determination, and make any necessary correction. Each
mL of 0.1 N perchloric acid is equivalent to 9.606 mg of C3H5NaO2.
Sodium Propionate BP
Sodium Propionate USP NF
Sodium Propionate Manufacturers at:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009,
INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564. FAX:
91-22-23728264
e-mail:
info@mubychem.com
Cell Call
to Anmol: +91-9821870100
USA & Canadian Customers may Call
773-829-5811
Copyright and Usual Disclaimer is
Applicable.
Last updated
12 December, 2011
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