Sodium perborate tetrahydrate
Sodium perborate tetrahydrate
CAS: 10486-00-7
Molecular Formula: BH4NaO4
Sodium perborate tetrahydrate - Names and Identifiers
Sodium perborate tetrahydrate - Physico-chemical Properties
| Molecular Formula | BH4NaO4 |
| Molar Mass | 101.83 |
| Density | 1.73 |
| Melting Point | 60°C (dec.)(lit.) |
| Water Solubility | 21.5 g/L (18 ºC) |
| Solubility | 23g/l |
| Appearance | Crystalline Powder |
| Color | White |
| Odor | Odorless |
| Exposure Limit | ACGIH: TWA 2 mg/m3; STEL 6 mg/m3 |
| Merck | 14,8652 |
| PH | 10 (15g/l, H2O, 20℃) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with heavy metal salts, strong reducing agents, strong acids, organic material. May decompose in the presence of air and moisture. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | White monoclinic crystalline particles or powders. Melting Point 63. Soluble in acid, alkali and glycerol, slightly soluble in water, alkaline solution (pHl0 ~ 11), aqueous solution is unstable, easy to release active oxygen. In cold, dry air, the higher the purity of sodium perborate is more stable. Decomposition in 40 °c or humid air, and the release of oxygen. At 63 ° C, it dissolves in its own water of crystallization, and forms a viscous solid block. Above 70 °c, three crystals of water are lost to form a monohydrate. At higher temperatures, in the presence of the free base, decomposition is facilitated. With dilute acid, hydrogen peroxide is produced. When treated with concentrated sulfuric acid, oxygen and ozone are released. It is also easy to be catalyzed by other substances such as lead oxide, manganese dioxide, potassium permanganate, silver nitrate, copper oxide, cobalt oxide and platinum black. |
Sodium perborate tetrahydrate - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R22 - Harmful if swallowed R36 - Irritating to the eyes R36/37/38 - Irritating to eyes, respiratory system and skin. R62 - Possible risk of impaired fertility R41 - Risk of serious damage to eyes R37 - Irritating to the respiratory system R61 - May cause harm to the unborn child |
| Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. |
| UN IDs | UN 1479 5.1/PG 2 |
| WGK Germany | 1 |
| RTECS | SC7350000 |
| TSCA | Yes |
| HS Code | 28403000 |
| Hazard Class | 5.1 |
| Packing Group | III |
Sodium perborate tetrahydrate - Nature
Open Data Verified Data
white monoclinic crystal particles or powder. Soluble in acid, alkali and glycerol, slightly soluble in water, alkaline solution (pH 10~11), aqueous solution is unstable, easy to release active oxygen. In cold, dry air, the higher the purity of sodium perborate is more stable. In
Decomposition at 40 °c or in humid air, and release of oxygen. At 63 ° C, it dissolves in its own water of crystallization, and forms a viscous solid block. Above 70 °c, three crystals of water are lost to form a monohydrate. At higher temperatures, in the presence of the free base, decomposition is facilitated. With dilute acid, hydrogen peroxide is produced. When treated with concentrated sulfuric acid, oxygen and ozone are released. It is also easy to be catalyzed by other substances such as lead oxide, manganese dioxide, potassium permanganate, silver nitrate, copper oxide, cobalt oxide and platinum black.
Last Update：2024-01-02 23:10:35
Sodium perborate tetrahydrate - Preparation Method
Open Data Verified Data
The chemical synthesis method is to dissolve solid sodium hydroxide, mix with borax solution, adjust the concentration of the solution to 26Be with concentrated mother liquor, and remove insoluble matter by filtration after fully stirring, the partial sodium borate solution is fed into the reactor, adjusted to a suitable concentration with the mother liquor, and then a magnesium silicate stabilizer is added, and then hydrogen peroxide is added to control the flow rate of the hydrogen peroxide, and the reaction is carried out at a temperature not exceeding 35 °c. After completion of the reaction, cooling crystallization, centrifugal separation, drying, prepared sodium perborate product.
Last Update：2022-01-01 10:58:39
Sodium perborate tetrahydrate - Use
Open Data Verified Data
commonly used as an oxidant for the color development of the dye, the bleaching and degreasing of the original cloth, the medicine is used as a disinfectant and a bactericide, and can also be used as a mordant, a detergent Auxiliary, a deodorant, and an additive for an electroplating solution, analytical reagents, organic synthetic polymerization agents, and toothpaste, cosmetics, etc.
Last Update：2022-01-01 10:58:39
Sodium perborate tetrahydrate - Safety
Open Data Verified Data
packed in a plastic woven bag or barrel lined with two layers of polyethylene plastic bags. 25kg or 50kg net weight per bag (barrel). The package should have a clear "oxidant". It belongs to Class II inorganic oxidant, with Hazard code number: GB 5.1 class 51505. UN No. 5185; IMDG CODE P. 5.1, category 1. Should be stored in a dry, clean and ventilated warehouse, storage temperature should not exceed 30 ℃, relative humidity should not exceed 75%, this product is easy to decompose under the condition of moisture and heat. The container must be sealed. Do not expose to sunlight to prevent moisture, caking or thermal decomposition. It is not allowed to be stored and mixed with organic matter. Not suitable for long storage. Fire can be suppressed with water, sand and carbon dioxide fire. After contact with sodium perborate Laryngalgia, Cough, Vomit, Diarrhea, loss of consciousness, skin and conjunctival congestion, pain symptoms. Therefore, we should pay attention to protection, prevent dust dispersion, wear protective equipment. Do not eat, drink or smoke at work. In case of accidental contamination, immediately leave the scene, Rinse eyes with plenty of water, take off the contaminated clothes, rinse the whole body, and send to the hospital for treatment if necessary. When leakage occurs, wear a filter-type protective mask to clean the leakage and rinse with plenty of water.
Last Update：2022-01-01 10:58:40
Sodium perborate tetrahydrate - Reference Information
| pH indicator color change ph range | 10-10.4 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | after contact with sodium perborate, there are sore throat, cough, vomiting, diarrhea, loss of consciousness, hyperemia of skin and conjunctiva, and pain symptoms. Therefore, attention should be paid to protection to prevent dust from dispersing and wearing protective articles. Do not eat, drink or smoke at work. When accidentally contaminated, immediately leave the scene, rinse the eyes with a lot of water, take off the contaminated clothes, rinse the whole body, and send to the hospital for treatment if necessary. When leaking, wear a filter-type protective mask to clean the leak and rinse with a large amount of water. |
| uses | commonly used as an oxidant for the color development of indanaceline dyes, bleaching and degreasing of raw fabrics, medically used as disinfectants and fungicides, and can also be used as mordant, detergent additive, deodorant, additive for electroplating solution, analytical reagent, organic synthetic polymerization agent, toothpaste, cosmetics, etc. The textile industry is used as an oxidant for the color development of indanserine dyes and a bleaching agent for raw fabrics. It is used medically as a disinfectant, neon vaccine and polo agent. The chemical industry is used for bleaching oils, animal stains and waxes, and can be used as a substitute for hydrogen peroxide and a polymerization agent for organic synthesis. The daily chemical industry is used to make various toothpastes and as an oxidant for cold perm, printing and dyeing powders. In addition, it is also used as an additive for coal dye, detergent, analytical reagent and electroplating solution. |
| production method | chemical synthesis method dissolves solid sodium hydroxide, mixes it with borax solution, and adjusts the concentration of the solution to 26 ° Bé with concentrated mother liquor. after full stirring, the insoluble substance is filtered to remove, and the sodium metaborate solution is obtained. after the mother liquor is adjusted to an appropriate concentration, magnesium silicate stabilizer is added, and then hydrogen peroxide is added, the flow rate of hydrogen peroxide is controlled and the reaction is carried out at a temperature not exceeding 35°C. After the reaction is completed, it is cooled and crystallized, centrifuged and dried to produce sodium perborate. Its Na2B4O7 2NaOH H2O2 11H2O → 4 NaBO3 · 4H2O |
Last Update：2024-04-10 22:29:15
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