Sodium sulfate decahydrate
Sodium sulfate decahydrate
CAS: 7727-73-3
Molecular Formula: H20Na2O14S
Sodium sulfate decahydrate - Names and Identifiers
| Name | Sodium sulfate decahydrate |
| Synonyms | glauber's salt GLAUBER'S SALT SODIUM SULPHATE IOH2O Sodium sulfate hydrated Sodium sulfate decahydrate SODIUM SULPHATE 10-HYDRATE SODIUM SULFATE DECAHYDRATE NATRII SULFAS DECAHYDRICUS Sodium sulfate, 10-hydrate SODIUM SULPHATE 10-hydrate SODIUM SULFATE, 10-HYDRATE SODIUM SULPHATE DECAHYDRATE Sodium sulfate, decahydrate SODIUM SULPHATE decahydrate SODIUM SULFATE DODECAHYDRATE |
| CAS | 7727-73-3 |
| EINECS | 616-445-4 |
| InChI | InChI=1/Na.H2O4S.10H2O/c;1-5(2,3)4;;;;;;;;;;/h;(H2,1,2,3,4);10*1H2/q+1;;;;;;;;;;;/p-2 |
| InChIKey | RSIJVJUOQBWMIM-UHFFFAOYSA-L |
Sodium sulfate decahydrate - Physico-chemical Properties
| Molecular Formula | H20Na2O14S |
| Molar Mass | 322.19 |
| Density | 1.46g/mLat 25°C(lit.) |
| Melting Point | 32-38°C |
| Water Solubility | Soluble in water and glycerin. Insoluble in ethanol and methanol. |
| Solubility | H2O: 1M at20°C, clear, colorless |
| Appearance | Colorless crystal |
| Specific Gravity | 1.46 |
| Color | White |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: ≤0.025', , 'λ: 280 nm Amax: ≤0.021'] |
| Merck | 14,8680 |
| PH | 5.2-8.0 (50g/l, H2O, 25℃)(anhydrous substance) |
| Storage Condition | Store at +15°C to +25°C. |
| Stability | Stable. Incompatible with strong acids, aluminium, magnesium. |
| Sensitive | Sensitive to light and easy to absorb moisture |
| MDL | MFCD00149189 |
| Physical and Chemical Properties | Colorless monoclinic crystalline powder, odorless, bitter and salty. melting point 32.38 ℃ relative density 1.464 solubility: soluble in water, insoluble in ethanol. Its aqueous solution is neutral. |
| Use | Used in sulfide alkali, detergent, medicine, textile, printing and dyeing, glass For the production of sodium sulfate powder, alkali sulfide and paper, glass, medicine, photography and other departments |
Sodium sulfate decahydrate - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 1 |
| TSCA | Yes |
| HS Code | 28331900 |
Sodium sulfate decahydrate - Upstream Downstream Industry
| Raw Materials | Sodium sulfate |
Sodium sulfate decahydrate - Nature
Open Data Verified Data
Glauber's salt is an aqueous sodium sulfate mineral. Monoclinic system, the crystal is short columnar, needle-like, plate-like, aggregate is dense Block, granular, shell-like, fibrous and so on. Color is colorless, gray-white, light yellow, yellow Brown and other colors. Transparent ~ translucent, glass gloss, shell-like fracture, hardness 1.5~2.0, density 1. 49g/cm3. The taste was slightly bitter, with cooling feeling. Easy deliquescence, in a dry environment can directly lose the crystallization of water into anhydrous mirabilite. Mirabilite is soluble in water and glycerol, and neutral after dissolving in water. When the temperature is lower than 32.4 ° C., mirabilite crystals can be precipitated from the saturated sodium sulfate solution. In dry salt lake in the chemical sediments, and gypsum, salt, episodic salt, anhydrous sodium sulfate and so on.
Last Update：2024-01-02 23:10:35
Sodium sulfate decahydrate - Preparation Method
Open Data Verified Data
sodium sulfate for pharmaceutical use is prepared by dissolving industrial anhydrous Glauber's salt with water, precipitating, filtering, crystallizing, washing with water and centrifuging.
Last Update：2022-01-01 09:04:30
Sodium sulfate decahydrate - Introduction
No smell, easy weatherability. All crystal water was lost at 100 ℃. Soluble in 1.5 parts of water at 25 ℃ and 3.3 in 15 ℃. Sodium chloride can reduce its solubility in water. Soluble in glycerin, soluble in water, insoluble in ethanol. The aqueous solution is neutral and pH6-7.5. It's irritating.
Last Update：2022-10-16 17:28:38
Sodium sulfate decahydrate - Use
Open Data Verified Data
mirabilite is an important mineral raw material for the chemical industry to prepare sodium sulfate (commonly known as sodium sulfate), ammonium sulfate, sodium sulfide (commonly known as alkali sulfide) and so on. Mirabilite chemical products are widely used in organic synthesis, rubber, rayon, medicine, dyes, paper, textile, leather, glass, ceramics, metallurgy, mineral processing and other departments.
Last Update：2022-01-01 09:04:31
Sodium sulfate decahydrate - Safety
Open Data Verified Data
stored in a ventilated, dry warehouse. In the summer or high temperature areas easy to melt and form large blocks, storage and transportation should be moisture-proof, rain-proof. Be careful not to leak the product by puncturing the packaging bag with iron nails or hard objects with sharp tips and corners. Do not mix with food, coal, cement, etc. to prevent pollution. In case of fire, it can be suppressed by water and various fire-retardants.
Last Update：2022-01-01 09:04:31
Sodium sulfate decahydrate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | Glauber's salt (sodium sulfate decahydrate) is prismatic, rectangular or irregular block and granular. It is colorless, transparent or white-like translucent, friable, friable, glass-like luster cross-section. Odorless and salty. |
| medicinal characteristics | salt of mirabilite, cold. Into stomach and large intestine. Efficacy: diarrhea, soft, clear heat. The main indications of Sun disease, Yang Ming disease, less Yang disease, phlegm, bowel, etc. |
| indications | mirabilite has the efficacy of purging heat and purging, moistening dryness and softening, clearing fire and detumescence. It can be used for solid hot constipation, dry stool, stagnation of Abdominal Pain, bowel swelling and pain; External treatment of breast, hemorrhoids swelling and pain. |
| purpose | is the preparation of soda ash, sodium sulfate, ammonium sulfate, alkali sulfide and other important raw materials mirabilite is an important mineral raw material for the chemical industry to prepare sodium sulfate (commonly known as sodium sulfate), ammonium sulfate, sodium sulfide (commonly known as alkali sulfide) and so on. Mirabilite chemical products are widely used in organic synthesis, rubber, rayon, pharmaceutical dyes, paper, textile, leather, glass, ceramics, metallurgy, mineral processing and other departments. New uses of sodium sulfate are caustic soda, water glass and chlorine-free potash (potassium sulfate). used in sulfide alkali, detergent, medicine, textile, printing and dyeing, glass for making sodium sulfate, sulfide alkali and paper, glass, medicine, photography and other departments used in the preparation of sulfide alkali, detergent, used in medicine, textile, printing and dyeing and other industries is the manufacture of anhydrous sodium sulfate raw materials. It is also used in the production of sodium sulfide, sodium silicate and other chemical products. The glass industry is used to replace soda ash. It is also used for routine blood tests. The food industry is used as a manufacturing agent for caramel pigment and a diluent for edible pigment. It is used as a laxative in medicine. assay dyes, routine blood tests, fabric printing, coolant mixtures, determination of lead, preparation of coolant mixtures. |
| production method | the industrial anhydrous Glauber's salt is dissolved in water, precipitated, filtered, crystallized, washed with water and centrifuged, preparation of medicinal sodium sulfate. natural freezing (beach field) method sodium sulfate decahydrate was prepared by releasing nitrate from artificial beach field through natural evaporation and freezing. The mother liquor (45 ° C, 32 ° Bé) after freezing the mother liquor for salt preparation is added to the pre-cooler for pre-cooling to 20 ° C, flows to the clear halogen tank, and then is cooled to 10 ° C by the pre-cooler, into the freezing crystallizer frozen to -5 deg C, the resulting crystals by centrifugal separation, prepared mirabilite product. The mother liquor can be used for refrigeration. The high and low temperature salt freezing method uses the high and low temperature salt in the production process of potassium chloride as the raw material to produce mirabilite. The high and low temperature salt is dissolved with hot water to 31.5~33 ° Bé and filtered, and the filtrate is mixed with a certain proportion of mother liquor, after pre-cooling, crystallization, freezing at low temperature of -5 ~-10 ℃, magnesium sulfate and sodium chloride are converted into mirabilite and precipitated, and then centrifuged to obtain mirabilite. The crystallization of the waste liquid from the coagulation of the rayon by-product rayon crystallizes the mirabilite, which is obtained by neutralization, filtration, concentration, crystallization, separation and drying. open-air and underground water-soluble mining is adopted for solid mirabilite. Open-pit mining is generally carried out by hand and by motor vehicle. Mineral processing is generally not used. The process is as follows: Technological process of open-pit mining in Salt Lake: mining process of underground dissolution method: The Modern salt lake brine mirabilite is mined by "reclamation and pouring" method or beach field method, and the technological process is as follows: |
Last Update：2024-04-09 21:32:08
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Raw Materials for Sodium sulfate decahydrate