Sodium bromide, BROMIDE, Bromnatrium, bromure de sodium, Trisodium tribromide, Bromide salt of sodium, Hydrobromic acid sodium salt, NSC 77384, HSDB 5039, 7647-15-6 

Sodium bromide, BROMIDE, Bromnatrium, bromure de sodium, Trisodium tribromide, Bromide salt of sodium, Hydrobromic acid sodium salt, NSC 77384, HSDB 5039, 7647-15-6 

Sodium bromide

CAS: 7647-15-6

Molecular Formula: NaBr

Names and Identifiers

Physico-chemical Properties

Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S24/25 - Avoid contact with skin and eyes. S25 - Avoid contact with eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S22 - Do not breathe dust.
WGK Germany	1
RTECS	VZ3150000
FLUKA BRAND F CODES	3
TSCA	Yes
HS Code	28275100
Toxicity	LD50 orally in rats: 3.5 g/kg (Smith, Hambourger)

Upstream Downstream Industry

Nature

colorless cubic crystal or white granular powder, belonging to the equiaxed crystal system. Odorless, with slightly bitter taste. Melting point 755 °c I relative density 3. 21. In the air to absorb moisture and caking, but not deliquescent. Soluble in water, slightly soluble in ethanol. Its aqueous solution is neutral and has electrical conductivity. The bromide ion in sodium bromide can be replaced by fluorine and chlorine. It reacts with dilute sulfuric acid to generate hydrogen bromide, and reacts with concentrated sulfuric acid, concentrated nitric acid, and the like to oxidize to generate bromine. The dihydrate is formed when the temperature is higher than 51 °c. The dihydrate is a colorless monoclinic crystal.

Preparation Method

The neutralization reaction of hydrobromic acid with sodium carbonate or sodium hydroxide gives sodium bromide. Or the soda ash, urea dissolved in hot water, into bromine, control the reaction temperature of about 80 deg C, reaction to generate sodium bromide.

Introduction

Absorbed water caking but not deliquescent, the aqueous solution is nearly neutral. It has a salty or slightly bitter taste. Absorb moisture from the air clots but not deliquesce. Slightly volatilized at high temperatures. 1g dissolved in 1. 1ml of water, about 16ml of ethanol and 6ml of methanol. Its aqueous solution is nearly neutral, and its pH is 6.5-8-0.. Low toxicity, half lethal dose (rat, oral) 3500mg/kg. It's irritating.

Use

It is used in the preparation of film photographic solution in the photosensitive industry, in the production of diuretics and sedatives in medicine, in the production of synthetic spices in the perfume industry, as a brominating agent in the printing and dyeing industry, and also in organic synthesis.

Safety

packed in fibreboard barrels of inner village polyethylene plastic bag, 50kg net weight per barrel. Precautions for storage and transportation should be stored in a dry and ventilated warehouse, and the packaging should be complete, protected from light and moisture. Transport should be protected from rain and sun exposure, handling should be light, to prevent the package
The packing was broken. In case of fire, it can be suppressed by water and various fire-retardants. To prevent ingestion, inhalation, to prevent the eyes, skin and contact. If ingested or inhaled, dizziness will occur, Nausea, Vomit, please immediately call a doctor for treatment; If splash into the eyes, immediately rinse with fresh water for 20min; Skin contact with sodium bromide, it should also be rinsed with plenty of water.

Reference Information