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Send EmailSodium Bisulfate, Sodium Hydrosulfate, Bisulfate of Soda, sodium hydrogen sulfate, sulfuric acid monosodium salt, NITRE CAKE, 7681-38-1
CAS: 7681-38-1
Molecular Formula: NaHSO4
Names and Identifiers
| Name | Sodium bisulfate |
| Synonyms | nitercake NITRE CAKE Sodium bisulfate Sodiumhydrogensulfate sodium hydrogensulfate sodium hydrogen sulfate sodium hydrogen sulphate sulfuricacid,monosodiumsalt sodiumbisulfate(sodiumhydrogen Sodium hydrogen sulfate technical grade |
| CAS | 7681-38-1 |
| EINECS | 231-665-7 |
| InChI | InChI=1/Na.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1 |
Physico-chemical Properties
| Molecular Formula | NaHSO4 |
| Molar Mass | 120.06 |
| Density | 2.1 |
| Melting Point | 315 °C |
| Water Solubility | soluble in 2 parts H2O, 1 part boiling H2O; decomposes in alcohol to sodium sulfate and H2SO4 [MER06] |
| Appearance | Granules |
| Color | White to light yellow |
| Merck | 13,8658 |
| Stability | Stable. Incompatible with strong bases, strong oxidizing agents, sodium carbonate, sodium hypochlorite. May decompose upon exposure to moist air or water. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Colorless monoclinic crystal or white powder. Soluble in cold water, its aqueous solution is acidic. |
Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 41 - Risk of serious damage to eyes |
| Safety Description | S24 - Avoid contact with skin. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3260 |
| WGK Germany | 1 |
| RTECS | VZ1860000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28331900 |
| Hazard Class | 8 |
| Packing Group | II |
Nature
colorless monoclinic crystal or white powder. The relative density was 2. 103. Melting point 58. 54 (0.5) °c. When hot water and alcohol is decomposed. Soluble in cold water, its aqueous solution is acidic. Deliquescence in air. When the crystal water is lost by heating, the anhydrous substance is further decomposed into sodium pyrosulfate by heating.
Preparation Method
- sulfate Mirabilite Method: sulfuric acid and anhydrous mirabilite reaction, after filtration, crystallization, separation, drying, prepared products.
- crude sodium bisulfate refining method: in the production of chromic anhydride, by-product crude sodium bisulfate, molten sodium bisulfate after removing chromic anhydride, and then by leaching, concentration and crystallization, sodium bisulfate is prepared.
Use
dyeing and printing industry as a dyeing aid for acid dyes. The smelting industry is used as a flux for the decomposition of minerals. The pharmaceutical industry is used as a component of disinfectants and detergents. The chemical industry is used as a raw material for the manufacture of sulfate and sodium alum. In addition, it is also used in oil drilling and soil improvement.
Safety
packed in plastic woven bags lined with two layers of polyethylene plastic bags, each with a net weight of sokg. Acid corrosion products. Risk code: GB 8.1 class 81509. UNNo.1821; IMDG CODE page 8125, class 8.1. Store in a ventilated, dry warehouse. Pay attention to moisture. To prevent rain during transport. In case of fire, it can be suppressed by water and various fire-retardants.
Reference Information
| Introduction | sodium bisulfate, also known as sodium acid sulfate, is an inorganic compound with the chemical formula of NaHSO4 and white monoclinic crystals, it is hygroscopic, the aqueous solution is acidic, and the pH of 0.1mol/L sodium hydrogen sulfate solution is about 1.4. |
| Application | The application of sodium bisulfate is as follows: 1. Used as a flux and disinfectant, and for the preparation of sulfate and sodium alum. 2. Used as mineral decomposition flux, acid dye dyeing agent and preparation of sulfate and sodium vanadium, also used in the manufacture of toilet cleaner, deodorant, disinfectant. 3. Determination of bromine, iodine, copper and titanium dioxide. Mineral analysis. Household Cleaner (45% solution), extraction of metallic silver; Reduce the alkalinity of swimming pool water; Pet food. |
| preparation | sodium hydroxide and sulfuric acid are mixed in an amount of substances such as sodium hydroxide and sulfuric acid to obtain sodium hydrogen sulfate and water. NaOH H2SO4 → NaHSO4 H2O sodium chloride (salt) and sulfuric acid can react at high temperature to produce sodium bisulfate and hydrogen chloride gas. NaCl H2SO4→ NaHSO4 HCl |
| identification test | According to IT 29, sulfate identification test was positive. |
| content analysis | accurately weigh about 5g of sample, dissolve in about TS-167 of water, add several drops of phenolphthalein test solution (), titration with 1mol/L sodium hydroxide. Per mL of 1mol/L sodium hydroxide corresponds to sulfuric acid (H2SO4)49.04mg or sodium hydrogen sulfate (NaHSO4)120.06mg. |
| usage limit | GB 2760-2001: water preparation, 50mg/kg (13.7mg/kg in terms of sodium). |
| Use | used as analytical reagent and melting agent used as mineral decomposition flux, disinfectant, dyeing aids and preparation of sodium sulfate and sodium alum, etc. reagents for analysis and flux |
| category | corrosive article |
| flammability hazard characteristics | non-combustible; Toxic sulfur oxide and sodium oxide smoke emitted by decomposition in fire scene |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | large amount of water |
