Benzenesulfinic acid,sodium salt
Benzenesulfinic acid,sodium salt
CAS: 873-55-2
Molecular Formula: C6H5NaO2S
Benzenesulfinic acid,sodium salt - Names and Identifiers
| Name | Benzenesulfinic acid,sodium salt |
| Synonyms | Natriumbenzolsulfinat BENZENESULFINIC ACID NA SALT Benzenesulfinic acid sodium salt Benzenesulfinic acid,sodium salt SODIUM 4-CHLOROBENZENE SULFINIC ACID P-CHLOROBENZENESULFINIC ACID SODIUM SALT 4-CHLOROBENZENESULPHINIC ACID SODIUM SALT Sodium benzene sulfonate,Sodium benzosulfonate 4-CHLOROBENZENESULFINIC ACID SODIUM SALT HYDRATE |
| CAS | 873-55-2 |
| EINECS | 212-842-8 |
| InChI | InChI:1S/C6H6O2S.Na/c7-9(8)6-4-2-1-3-5-6;/h1-5H,(H,7,8);/q;+1/p-1 |
Benzenesulfinic acid,sodium salt - Physico-chemical Properties
| Molecular Formula | C6H5NaO2S |
| Molar Mass | 164.16 |
| Melting Point | 300℃ |
| Boling Point | 339.4°C at 760 mmHg |
| Flash Point | 159.1°C |
| Water Solubility | Soluble in water. |
| Vapor Presure | 3.58E-05mmHg at 25°C |
| Appearance | Crystallization |
| Storage Condition | RT, dark |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00013135 |
| Physical and Chemical Properties | Colorless flaky crystals. |
| Use | Used as polymeric adhesion enhancer, plasticizer, used in polyamide, epoxy resin, phenolic resin plasticizing and modifying |
Benzenesulfinic acid,sodium salt - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
Benzenesulfinic acid,sodium salt - Upstream Downstream Industry
Benzenesulfinic acid,sodium salt - Nature
Open Data Verified Data
colorless plate-like crystals. Soluble in water, the solution is weakly alkaline.
Last Update：2024-01-02 23:10:35
Benzenesulfinic acid,sodium salt - Preparation Method
Open Data Verified Data
with benzenesulfonyl chloride and sodium metabisulfite, water and sodium hydroxide, reduced to sodium benzenesulfinate, After decolorization, filtration, cooling, separation and removal of sodium bisulfite, add salt acid to form benzenesulfinic acid, rinse with ice water, after separating the water, add liquid alkali and salt, finally
After decolorization, concentration, Suction filtration, crystallization, obtained.
Last Update：2022-01-01 10:55:22
Benzenesulfinic acid,sodium salt - Introduction
Soluble in hot water, soluble in water, slightly soluble in ethanol.
Last Update：2022-10-16 17:29:31
Benzenesulfinic acid,sodium salt - Safety
Open Data Verified Data
almost non-toxic. 30kg lined with plastic bag, coat fiber barrel.
Last Update：2022-01-01 10:55:22
Benzenesulfinic acid,sodium salt - Nature
| storage conditions | Inert atmosphere,Room Temperature |
| morphology | Crystals or Crystalline Powder |
| color | White |
| water solubility | Soluble in water. |
| sensitivity | Hygroscopic |
| BRN | 3598405 |
| EPA chemical information | Benzenesulfinic acid, sodium salt (873-55-2) |
Last Update：2024-04-10 22:29:15
Benzenesulfinic acid,sodium salt - Security information
| WGK Germany | 1 |
| RTECS number | DA9135000 |
| TSCA | T |
| customs code | 29309090 |
Last Update：2024-04-10 22:29:15
Benzenesulfinic acid,sodium salt - Uses and synthesis methods
use
1, used as analytical reagent
2. Sodium benzenesulfonate is an intermediate for the preparation of chrysanthemum acid by Martel method, and can also be used as a photographic reducing agent.
3. this product is a bright nickel plating primary brightener. It has the effect of significantly reducing the grain size of the nickel-plated layer, making the coating bright and making the coating ductile well. The general dosage is 0.1~0.3g/l.
4. Used as polymerization adhesion enhancer, plasticizer, used for plasticization and modification of polyamide, epoxy resin, phenolic resin
5. this chemical is specially manufactured for photographic, pharmaceutical and electroplating industries.
production method
1. by equimolar benzenesulfonic acid and NaOH (prepared into 40% sodium hydroxide aqueous solution), stirring at 30~40 ℃ for 2 h, concentration, cooling crystallization, filtration, vacuum drying to obtain the finished product.
2. the preparation method is to reduce benzenesulfonyl chloride, sodium metabisulfite, water and sodium hydroxide to sodium benzenesulfonate at pH = 3.5~8.5 and 50 ℃. after decolorization, filtration and cooling to 15 ℃, sodium bisulfate is separated, benzenesulfonic acid is analyzed with 30% hydrochloric acid at 15~20 ℃, washed with water, and then neutralized with alkali to form salt.
Last Update：2024-04-09 01:59:49
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View History
Raw Materials for Benzenesulfinic acid,sodium salt
Benzene
Sodium sulfite
Sodium metabisulfite
Benzenesulfonyl chloride
Benzenesulfonic acid sodium salt
Iodobenzene
Sodium sulfite
Sodium metabisulfite
Benzenesulfonyl chloride
Benzenesulfonic acid sodium salt
Iodobenzene
Downstream Products for Benzenesulfinic acid,sodium salt
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BENZENETHIONOSULFONIC ACID, SODIUM SALT
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Benzenesulfenic acid,2,4-dinitro-, ethyl ester
1-Bromo-4-(phenylsulfonyl)benzene