Bromous acid
Sodium bromite
CAS: 7486-26-2
Molecular Formula: BrH2NaO2
Bromous acid - Names and Identifiers
| Name | Sodium bromite |
| Synonyms | Bromous acid Sodium bromite Einecs 231-290-9 bromousacid,sodiumsalt Bromous acid, sodium salt |
| CAS | 7486-26-2 |
| EINECS | 231-290-9 |
| InChI | InChI=1/BrHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 |
Bromous acid - Physico-chemical Properties
| Molecular Formula | BrH2NaO2 |
| Molar Mass | 136.91 |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | Trait pure line yellow crystal. Industrial products are mostly lemon yellow alkaline solution. soluble in water. |
| Use | NaBrO2 |
Bromous acid - Upstream Downstream Industry
| Raw Materials | Chlorine Sodium hydroxide Bromine |
| Downstream Products | Bromoform |
Bromous acid - Nature
Open Data Verified Data
pure strains of yellow crystals, soluble in water, acid, light, heat and metal (iron, zinc, copper, etc.) is very easy to decompose. Industrial products are mostly lemon yellow alkaline solution (Ph 13~14), containing sodium bromide 170g/LI stable at low temperature (O ℃), high temperature, normal temperature, light all accelerate the decomposition rate; when the pH value is below 9.2, the generation of atomic oxygen has the effect of bleaching and Desizing.
Last Update：2025-06-10 22:55:16
Bromous acid - Preparation Method
Open Data Verified Data
synthesis method: Solid alkali is mixed with water to form liquid alkali, and the reaction is carried out by chlorine gas at low temperature. After removing sodium chloride, bromine is added to prepare sodium hypobromate to maintain a certain low temperature and pH value, sodium hypobromide was subjected to a disproportionation reaction to form sodium bromate. Non-disproportionated sodium hypohalinate was removed with ammonia, filtered, evaporated, filtered and desalted, and then diluted and mixed with stable liquid to obtain sodium bromate finished product.
Last Update：2022-01-01 10:59:28
Bromous acid - Application
Open Data Verified Data
The textile industry is used as a Desizing agent in cotton spinning industry, which has the advantages of fast Desizing, no heat source, no damage to fabric fibers, good hand feel, thorough and uniform Desizing, etc; printing and dyeing industry can be used instead of red sodium for dye oxidation color, also used for bleaching; Paper industry for paper, pulp treatment, can increase the wear strength of the paper.
Last Update：2025-08-19 16:24:40
Bromous acid - Safety
Open Data Verified Data
packed in a black polyethylene plastic barrel with a wooden frame and a net weight of 25kg per barrel. Stored in a dark, cool and ventilated place, should be protected from the sun, not mixed with organic matter and metal zinc, copper, iron and other reducing substances, storage at low temperature is valid for 3~5 months; during transportation, it should be protected from rain and sun; When loading and unloading, it should be handled with light to prevent package breakage; When there is a fire, it can be put out by sand and fire. Avoid contact with eyes and skin. If contact occurs, rinse with plenty of fresh water for 20min and immediately seek medical treatment.
Last Update：2025-06-10 22:55:16
Bromous acid - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used for fabric Desizing and printing and dyeing oxidant used in textile industry as Desizing agent for cotton spinning industry, with fast Desizing, no heat source, no damage to the fabric fiber, feel good, Desizing thoroughly uniform and other advantages. The printing and dyeing industry can be used instead of sodium red aluminum for dye oxidation and also for bleaching. Paper industry for paper, pulp processing, can increase the wear strength of the paper. |
| production method | synthesis method Solid alkali is mixed with water to form liquid alkali, and chlorine gas is used to react at low temperature, sodium hypobromite is prepared by adding bromine after removing sodium chloride, and the sodium hypobromite is subjected to disproportionation reaction to form sodium bromate while maintaining a certain low temperature and pH value. Non-disproportionated sodium hypohalinate was removed with ammonia, filtered, evaporated, filtered and desalted, and then diluted and mixed with stable liquid to obtain sodium bromate finished product. Its 2NaOH C12 → NaClO NaCl H2O2NaOH Br2 → NaBrO NaBr H2ONaClO NaBr → NaBrO NaCl2NaBrO → NaBrO2 NaBr3NaBrO2 → 2NaBrO3 NaBr |
Last Update：2024-04-09 15:16:52
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View History
Bromous acid
AMINO K ACID
ASC-J9
Anthramar Navy Blue BR
CS-2593
DI-SODIUM HYDROGEN PHOSPHATE-7-HYDRATE
propaldehyde
Cyclopropylmethanol
CI 18065
PAC
AMINO K ACID
ASC-J9
Anthramar Navy Blue BR
CS-2593
DI-SODIUM HYDROGEN PHOSPHATE-7-HYDRATE
propaldehyde
Cyclopropylmethanol
CI 18065
PAC
Raw Materials for Bromous acid
Downstream Products for Bromous acid