Ammonium bromide

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Industry Category:	Chemicals/Quaternary Ammonium Salts/Alkyl Quaternary Ammonium Salts
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Iminodiacetic acid

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Product Name: Ammonium Bromide

English Name: Ammonium bromide

CAS Number: 12124-97-9

Molecular Formula: NH₄Br

Molecular Weight: 97.94

Properties: Colorless crystals or white crystalline powder, salty taste, specific gravity 2.429, sublimates at 452°C, soluble in water and alcohol, slightly soluble in ether, slightly hygroscopic in air with slight decomposition, turns yellow due to the release of a small amount of bromine, aqueous solution is neutral or weakly acidic.

Quality Specifications: (SPECIFICATION)

Item	Pharmaceutical Grade	Photographic Grade	Reagent Grade III	Industrial Grade
Content% ≥	99.0	99.0	98.0	98.0
Aqueous Solution Reaction	Qualified passed	Qualified passed	Qualified passed
Water Insolubles% ≤	0.01	0.01	0.01
Ignition Residue% ≤	0.1	0.1	0.1
Chlorides (as Cl)% ≤	0.2	0.5	0.5	1.0
Sulfates (as SO₄) ≤	0.01	0.01	0.01
Iron (Fe)% ≤	0.002	0.0002	0.0005	0.005
Copper (as Cu)% ≤		0.0001
Iodides (as I)% ≤	Qualified passed	0.01	0.05
Heavy Metals (as Pb)% ≤	0.0002	0.0001	0.0005
Loss on Drying% ≤	0.5	0.5	0.5	1.0
Reference Standard	China Pharmacopeia 1995-CHINA Pharmacopeia	ZBG85002-88	GB1277-77	GB1277-77

Uses: Mainly used as a sedative for oral medications such as neurasthenia and epilepsy, photographic films and papers, also used in lithographic printing, wood fire retardants, and chemical analysis reagents.

Packaging and Storage: Composite bags, cardboard drums 30cm×37cm, lined with two layers of plastic bags, 25kg per drum. Should be stored in a cool, dry place. Isolate from acids, store sealed and protected from light.