Sodium Bromide Pure BP Ph Eur USP ACS AR Analytical Reagent Manufacturers, |
Muby chemicals, is the flagship company in Mubychem Group, established in 1976, It has several manufacturing units in its wings, making Inorganic Chemicals including Sodium Bromide, Pharmaceutical Excipients & Flavour Chemicals in India. Mubychem Group has manufacturing facilities spread across Western India and sales purchase agents in several countries. The associated manufacturing units are accredited with certifications like FDA cGMP and GLP Approval, ISO-9001 ISO-14001, ISO/IEC 17025, ISO-22000, FSSC 22000, ISO 45001, Certification, "REACH" registration, Kosher, Halal & HACCP Certification. |
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CAS Number: 7647-15-6
CAS Number: 7647-15-6
Molecular Weight: 102.89
Molecular Formula: NaBr
Melting Point: 755C
Boiling Point: 1390C
EINECS EC Number: 231-599-9
Specifications of Sodium Bromide:
Sodium Bromide Pure
-------------------------- Specifications
Sodium Bromide % by Weight of Dried Material - 99% Sodium bromide
Chlorides % by Wt. max ----------------------- 00.3%
Bromates % by Wt. max ------------------------ 00.001%
Heavy Metals Wt. max ------------------------- 00.001%
Iron % by Wt. max. --------------------------- 00.008%
Sulphate ------------------------------------- 00.06%
Alkali % by Wt. max -------------------------- 00.02%
Arsenic -------------------------------------- 10 ppm max.
Barium --------------------------------------- Passes the test as per IS
Moisture % by Wt. max ------------------------ As agreed
We supply Sodium Bromide of BP Ph Eur IP USP ACS Reagent grade.
Sodium Bromide General & Uses
Sodium bromide is a salt with the formula NaBr, widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries. Its action is due to the bromide ion (potassium bromide is equally effective). It is a high-melting white, crystalline solid that resembles sodium chloride. It is a widely used source of the bromide ion.
Principal chemical reactions:
NaBr is widely used in organic synthesis as a nucleophile to convert organochlorine compounds to organobromine derivatives, which are more usefully (selectively) reactive.
Sodium bromide can be used as a source of the chemical element bromine. This can be accomplished by bubbling chlorine gas through an aqueous solution of NaBr.
As a source of HBr, NaBr is treated with a strong, non-volatile acid:
It is used as a hypnotic, anticonvulsant, and sedative in medicine. As a source of the bromide ion, which is pharmacologically active, it is equivalent to potassium bromide. It is used to establish a bromide ion reserve in a bromine spa (hot tub) antimicrobial treatment regimen.
Sodium Bromide BP Ph Eur Grade Specifications
102.9 --- CAS 7647-15-6
DEFINITION
Content: 98.5 per cent to 101.0 per cent (dried substance).
CHARACTERS
Appearance: White or almost white, granular powder or small, colourless, transparent or opaque crystals, slightly hygroscopic.
Solubility: Freely soluble in water, soluble in ethanol (96 per cent).
IDENTIFICATION
A. It gives reaction (a) of bromides.
B. Solution S (see Tests) gives the reactions of sodium.
TESTS
Solution S: Dissolve 10.0 g in carbon dioxide-free water and dilute to 100 mL with the same solvent.
Appearance of solution: Solution S is clear and colourless.
Acidity or alkalinity: To 10 mL of solution S add 0.1 mL of bromothymol blue solution. Not more than 0.5 mL of0.01 M hydrochloric acid or 0.01 M sodium hydroxide is required to change the colour of the indicator.
Bromates: To 10 mL of solution S add 1 mL of starch solution, 0.1 mL of a 100 g/L solution of potassium iodide and 0.25 mL of 0.5 M sulfuric acid and allow to stand protected from light for 5 min. No blue or violet colour develops.
Chlorides and sulfates: Limits: chlorides: maximum 0.6 per cent; sulfates: maximum 0.01 per cent.
Iodides: To 5 mL of solution S add 0.15 mL of ferric chloride solution and 2 mL of methylene chloride. Shake and allow to separate. The lower layer is colourless.
Iron: Maximum 20 ppm.
Magnesium and alkaline-earth metals: Maximum 200 ppm, calculated as Ca.
Loss on drying: Maximum 3.0 per cent, determined on 1.000 g by drying in an oven at 105C for 3 h.
ASSAY
Dissolve 85.0 mg in water, add 5 mL of dilute nitric acid and dilute to 50 mL with water. Titrate with0.1 M silver nitrate, determining the end-point potentiometrically.
1 mL of 0.1 M silver nitrate is equivalent to 10.29 mg of NaBr.
Calculate the percentage content of NaBr using the following expression: (a-2.902b)
a= percentage content of NaBr and NaCl obtained in the assay and calculated as NaBr;
b=percentage content of Cl obtained in the test for chlorides.
STORAGE
In an airtight container.
Sodium Bromide USP Grade Specifications
NaBr --- 102.89 --- CAS 7647-15-6
Sodium Bromide contains not less than 98.0 percent and not more than 100.5 percent of NaBr, calculated on the dried basis. It contains no added substances.
Packaging and storage: Preserve in well-closed containers, and store at room temperature.
Appearance of solution: clear and colorless.
Test solution: Dissolve 10.0 g in carbon dioxide-free water, and dilute with the same solvent to 100 mL.
Identification:
A: A solution containing 4.0 mg of sodium bromide responds to the test for Bromide.
B: It responds to the test for Sodium.
Acidity or alkalinity: To 10 mL of the solution prepared for the test for Appearance of solution, add 0.1 mL of bromothymol blue: not more than 0.5 mL of 0.01 N hydrochloric acid or 0.01 N sodium hydroxide is required to change the color of this solution.
Loss on drying: Dry it at 100 to 105 for 3 hours: it loses not more than 3.0% of its weight.
Bromates:
Starch mercuric iodide solution: Triturate 1.0 g of soluble starch with 5 mL of water, and pour the mixture into 100 mL of boiling water containing 10 mg of mercuric iodide.
Procedure: To 10 mL of the solution prepared for the test for Appearance of solution add 1 mL of Starch-mercuric iodide solution, 0.1 mL of a 100 g per L solution of potassium iodide, and 0.25 mL of 0.5 M sulfuric acid. Allow to stand protected from light for 5 minutes. No blue or violet color develops.
Limit of chlorine: not more than 0.6%.
Iodides: To 5 mL of the solution prepared for the test for Appearance of solution add 0.15 mL of a 10.5 g per 100 mL ferric chloride solution, and 2 mL of dichloromethane. Shake, and allow to separate. The lower layer is colorless.
Sulfates: A 2.0-g portion shows no more sulfate than corresponds to 0.2 mL of 0.020 N sulfuric acid (0.01%).
Limit of iron: not more than 20 ppm.
Magnesium and alkaline-earth metals: To pass the test. (0.02%, calculated as Ca).
Heavy metals: not more than 10 ppm.
Sodium Bromide Analytical Reagent Grade Specifications
NaBr
Formula Weight: 102.89
CAS Number 7647-15-6
REQUIREMENTS
Assay (corrected): 99.0% NaBr
pH of a 5% solution: 5.0-8.8 at 25C
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Bromate (BrO3): 0.001%
Chloride (Cl): 0.2%
Nitrogen compounds (as N): 5 ppm
Sulfate (SO4): 0.002%
Barium (Ba): 0.002%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.002%
Magnesium (Mg): 0.001%
Potassium (K): 0.1%.
Sodium Bromide
Sodium Bromide Pure & ACS AR Analytical Reagent Grade Manufacturers:
Muby Chemicals & Associated Cos
BANDEALI BUILDING, CHINCHBUNDER, MUMBAI 400009, INDIA.
TEL: 91-22-23728264. Gujarat & Mumbai India.
info(At the Rate i.e. @)mubychem(dot)com
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Last updated
7-sep-22
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