Sodium percarbonate, oxygen bleach
Shangyu Jiehua Chemical Co., Ltd
Office: 51 Baiheng Rd., Sanpeng Bridge, Shangyu, Zhejiang 312300 China
Plant: Hanzhou Gulf Fine Chemical Zone of Zhejiang, China
Tel: +86-575-81222198 Fax: +86-575-82211434
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1. What is Sodium Percarbonate?
Sodium Percarbonate (or sodium carbonate peroxyhydrate) is an addition compound of sodium carbonate and hydrogen peroxide. When dissolved into water, its releases H2O2and soda ash (sodium carbonate).
2Na2CO3 . 3H2O2 ---> 2Na2CO3 + 3H2O2
The pH of the resulting solution is typically alkaline, which activates the H2O2 for bleaching. The dry powder contains about 30% w/w H2O2.
2. What are the applications of Sodium Percarbonate?
Sodium percrabonate has a wide range of applications in various solid detergent products and all fabric bleaches. We may also find its usages in oxygen release compositions, personal care formulations, disinfectants, food bleaches, pulp and paper bleaches and textile bleaches, etc.
3. What are the advantages of Sodium Percarbonate?
Compared with chlorine bleaching chemicals that have contaminations on the environment, Sodium Percarbonate is an environmentally friendly chemical which decomposes into oxygen, water and natural soda ash when in contact with hydrous media.
Sodium Percarbonate is increasingly being the substitute for sodium perborate in detergent formulations due to its lower dissolving temperature in water, as well as the characteristic of no contamination on soil, as sodium perborate is made of borax which is found to have negative impact on the soil quality.
Detergent or bleach compositions formulated with Sodium Percarbonate have an strong stain removal capability. It is very effective as a laundry presoak for heavily stained articles. It is color safe. It brightens colors and prevent fabric form become yellowed or darkened.
Sodium Percarbonate is effective as a disinfectant on both bacteria and virus. It is an excellent ingredient in personal care and home care formulations for hygiene.
For its environmental advantages, Sodium Percarbonate is a good oxygen release chemical for agricultural and aquicultural applications.
4. Why is Shangyu Jiehua Chemical believed to be a reliable supplier of Sodium Percarbonate in the world market?
Shangyu Jiehua Chemical has been producing Sodium Percarbonate for more than a decade. Due to its abundant R & D investment and tech innovation, Shangyu Jiehua Chemical is able to provide its customers with different specs of quality coated and uncoated Sodium Percarbonate. Shangyu Jiehua Chemical currently has a production capability of 100,000mt annually which can meet customers?increasing demands on a sustainable base. You feel satisfied with the cooperation with Shangyuchem not only for the reason of good product quality, timely and safe delivery, but also the excellent after market service and tech support.
Shangyu Jiehua Chemical runs its business on the base of honesty and integrity, Shangyu Jiehua Chemical is fully participated in meeting customers demands.
5. What are the difference between the coated and uncoated Sodium Percarbonate?
Sodium Percarbonate is used as an active oxygen component in detergents, bleaches and cleaning agents. Due to the unsatisfactory storage stability of the uncoated Sodium Percarbonate in warm/moist surroundings and in the presence of certain detergent and cleaning agent components, Sodium Percarbonate must be stabilized against the loss of active oxygen. An essential principle of stabilization involves encasing the Sodium Percarbonate particles in a coating of components having a stabilizing action. Here comes the definetion: the coated Sodium Percarbonate is the Sodium Percarbonate crystals coated with single or multiple layers of various substances in order to increase active oxygen stability and optimize storage and ensiling properties.
Coated Sodium Percarbonate is the more commonly commercialized peroxide compared with the uncoated Sodium Percarbonate. But the uncoated product is still the preferred ingredient for simply mixing with enough quantity of soda ash and some surfactants to form the popular oxygen bleaches.
6. How to make PCS based oxygen bleach system stable in powder detergent formulations?
Detergent compositions containing Sodium Percarbonate are known in the art. Sodium Percarbonate is an attractive perhydrate for use in detergent compositions because it dissolves readily in water, is weight efficient and, after giving up its available oxygen, provides a useful source of carbonate ions for detergency purposes.
However, the inclusion of percarbonate salts in detergent compositions has been restricted by the relative instability of the bleach both as is and in use. Sodium Percarbonate loses its available oxygen at a significant rate in the presence of ions of heavy metals such as iron, copper and manganese and also in the presence of moisture, these effects being accelerated at temperatures in excess of about 30.degree. C. To solve this problem, several solutions have been found.
1, Sodium Percarbonate is coated with a hydrophobic substance or the like.
2, Magnesium silicate is incorporated in a detergent composition containing Sodium Percarbonate.
3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
4, Zeolite A is replaced by maximum aluminium zeolite P (zeolite MAP) since zeolite MAP itself is of greater liquid carrying capacity than zeolite A.
5,The elimination of impurities, such as heavy metals which catalyze the decomposition reaction during detergent processing, alleviates the instability of aqueous SCP solutions.
6, Provide sufficient sodium carbonate in the composition to be able to combine with all of the available water in the composition to form sodium carbonate monohydrate. the term "available water" includes water chemically available as hydrogen peroxide, water of crystallization of sodium carbonate hydrates and free water which may temporarily exist in the composition.
7. What's the amount of Sodium Percarbonate to be formulated in bleach and detergent compositions?
Oxygen Bleach Type Ingredients % By WT.
Home Laundry Bleach Premium Grade Sodium Percarbonate 25.0
Soda Ash 50.0
Nonionic Surfactant 3.0
Sodium Sulfate 22.0
Total 100.0
Home Laundry Bleach Economy Grade Sodium Percarbonate 25.0
Soda Ash 75.0
Total 100.0
Home Laundry Bleach Concentrated Grade Sodium Percarbonate 80.0
Soda Ash 20.0
Total 100.0
Institutional Laundry Bleach Sodium Percarbonate 80.0
Soda Ash 20.0
Total 100.0
Concrete Cleaner Sodium Percarbonate 78.0
Soda Ash 20.0
Nonionic Surfactant 2.0
Total 100.0
Vinyl Siding Cleaner Sodium Percarbonate 28.0
Soda Ash 72.0
Total 100.0
Wood Deck Cleaner and Stain Remover Sodium Percarbonate 80.0
Soda Ash 10.0
Sodium Tripolyphosphate 10.0
Total 100.0
Marine Teak Cleaner Sodium Percarbonate 58.0
Soda Ash 40.0
Nonionic Surfactant 2.0
Total 100.0
Household Dishwashers (Tablet Form) Citrate 30.0
Sodium Carbonate 15.0-30.0
Sodium Percarbonate 5.0-15.0
Polyasparaginic Acid 5.0-15.0
Sugar Surfactants 1.0-5.0


Powder dertergents Ingredients % By WT.
Standard detergent base PCS(8~15%, by WT.) Sodium Percarbonate 12.5
Soda Ash 16.4
Nonionic Surfactant 4.1
Linear alkylbenzene sulphonate 9.0
Zeolite MAP (as anhydrous) 37.7
Acrylic/maleic copolymer 4.0
Sodium alkaline silicate 0.6
SCMC 0.8
Fluorescer 0.3
Soap 2.5
Moisture (nominal) 12,2

 

  1. 什么是过碳酸钠?

  2. 过碳酸钠(或者过氧化氢碳酸钠/过氧水合碳酸钠)是碳酸钠和过氧化氢的加成化合物。当过碳酸钠溶于水时,分解生成过氧化氢和纯碱(碳酸钠)。其反应式如下:
    2Na2CO2.3H2O3 → 2Na2CO3+ 3H2O2
    溶解后溶液的pH值呈碱性,有利于过氧化氢发生进一步的化学反应生成活性氧,从而发挥了其漂白去污的功能。过碳酸钠干粉的活性氧含量相当于30%浓度的双氧水。

  3. 过碳酸钠应用在那些领域?

  4. 过碳酸钠主要用于各类固体洗涤剂和彩漂粉,也可以制成安全环保的释氧剂、消毒剂;此外,过碳酸钠也可以应用于个人护理品,食物漂白,纸浆漂白和织物漂白中。

  5. 过碳酸钠有何优点?
  6. * 与污染环境的氯漂白剂相比较,过碳酸钠对环境无不良影响,当它与含水的介质接触的时候,分解成氧气,水和天然的纯碱。
    * 由于过碳酸钠在水中较低的溶解温度和对土壤没有污染的特性,逐渐成为洗衣粉配方中的过硼酸钠的替代品。过硼酸钠由硼砂制成,过多的硼元素存在对土壤质量有着负面影响。
    * 含有过碳酸钠的洗涤剂和漂白剂具有较强的去污能力,尤其对于用来预浸玷有重污的衣物非常有效。值得称道的是,过碳酸钠具有保色增艳作用,不会损伤织物的颜色,并且防止织物变黄或者变暗。
    * 过碳酸钠可以有效消灭细菌和病毒,是一种非常安全环保的消毒剂,是各类个人护理品和家庭护理品的优质原料。
    * 基于其无环境污染和活性氧含量较高的特性,在农业和水产养殖业中过碳酸钠可以作为供氧剂或释氧剂使用。

  7. 为什么上虞化工是全球市场优秀的过碳酸钠供应商?

  8. 上虞洁华化工生产过碳酸钠已经有十年多的历史了。得益于的殷实的科研投入和持之以恒的技术创新,上虞洁华化工能够向客户提供各钟规格的包衣和不包衣过碳酸钠。目前浙江迪希化工年生产能力达到十万吨,可以满足日益增加的市场需求。上虞洁华化工以诚信为本,与上虞洁华化工合作你将会感到非常满意,不仅仅是因为卓越的产品质量和及时安全的送货服务,而且具有周到的售后服务和技术支持。

  9. 包衣过碳酸钠和不包衣过碳酸钠之间的区别是什么?

  10. 过碳酸钠作为各类洗涤剂和漂白剂中的活性氧载体,在相对湿度较高的环境中或洗涤剂配方中其它成分的影响下,不包衣过碳酸钠由于其晶体直接裸露会很快地分解,储存稳定性较差,所以必须通过在过碳酸钠晶体表面涂层来防止活性氧的损失,由此得到了包衣过碳酸钠:即涂有各种物质物质组成的单层或者多层膜的过碳酸钠颗粒,使其具有更高的活性氧稳定性和和更长的储藏期。
    虽然目前市场上的过碳酸钠大多是包衣型,但是在生产配方简单的彩漂粉时,不包衣过碳酸钠仍然是首选的原料,因为彩漂粉中的其它成分是纯碱和一些表面活性剂,水份含量低,对过碳酸钠的稳定性不会有多大的影响。
  11. 如何提高过碳酸钠氧系漂白系统在各类洗衣粉配方中的稳定性?
  12. 众所周知,目前有些生产商开始采用过碳酸钠作为洗衣粉中的漂白剂,的确,过碳酸钠是一种非常理想的活性氧载体,因为过碳酸钠无污染、活性氧含量高、溶解温度低、能快速释放出活性氧, 并且在释氧后,其分解物含有碳酸盐离子有助于提高洗衣粉去污力。
    但是,由于其本身的稳定性低和易受到周围介质的影响,过碳酸钠无法得到更为广泛的应用。洗衣粉中通常存在大量重金属离子比如铁、铜和锰等,以及较高的水份,加之在温度超过30°C的情况下,过碳酸钠会分解,有效活性氧快速丢失。为了提高过碳酸钠的稳定性,研究人员找到了以下几种方法:
    在过碳酸钠上涂上一层防水的物质或者类似的物质。
    在洗衣粉加入一定比例的硅酸镁。
    在洗衣粉中掺入螯合剂,例如次氮基三乙酸酯(NTA)或者是乙二胺四乙酸酯(EDTA),这些螯合剂易于形成水溶性的金属螯合物。
    用最大量的铝沸石P(沸石MAP)取代沸石A,因为沸石MAP比沸石A具有更强的吸潮能力。
    把洗衣粉配方中的杂质如金属离子等降到最小量。
    在配方中加入足量的碳酸钠。

  13. 过碳酸钠在彩漂粉和洗衣粉中的添加比例是多少?
  14. 氧漂类型 成分 添加量,%(按重量计)
    家用漂洗剂 (特级) 过碳酸钠 25.0
    碳酸钠 50.0
    非离子型表面活性剂 3.0
    硫酸钠 22.0
    总计 100.0
    家用漂洗剂   (经济型) 过碳酸钠 25.0
    碳酸钠 75.0
    总计 100.0
    家用漂洗剂 (浓缩型) 过碳酸钠 80.0
    碳酸钠 20.0
    总计 100.0
    宾馆、医院用漂洗剂 过碳酸钠 80.0
    碳酸钠 20.0
    总计 100.0
    水泥地面清洗剂 过碳酸钠 78.0
    碳酸钠 20.0
    非离子型表面活性剂 2.0
    总计 100.0
    乙烯板清洗剂 过碳酸钠 28.0
    碳酸钠 72.0
    总计 100.0
    木地板清洗剂 过碳酸钠 80.0
    碳酸钠 10.0
    三聚磷酸盐 10.0
    总计 100.0
    柚木甲板清洗剂 过碳酸钠 58.0
    碳酸钠 40.0
    非离子型表面活性剂 2.0
    总计 100.0

    洗衣粉 成分 重量百分比%
    标准型 过碳酸钠 (8~15%,以重量计) 过碳酸钠 12.5
    碳酸钠 16.4
    非离子型表面活性剂 4.1
    线性烷基苯磺酸盐 9.0
    沸石MAP(无水) 37.7
    丙稀/马来酸共聚物 4.0
    强碱硅酸钠 0.6
    SCMC 0.8
    荧光增白剂 0.3
    脂肪酸盐 2.5
    水份(标称的) 12.2

For details of knowledge, please refer to soap & detergent association. 洗衣粉基本知识


Potassium Monopersulfate | Application of Potassium Monopersulfate | 过一硫酸氢钾 | Application of Sodium Percarbonate in Detergent industry | Application of Sodium Percarbonate in Agriculture | MSDS| Hera Percarbonate | 過炭酸ソーダ | 과탄산소다 | 过碳酸钠 | 过碳酸钠和鱼塘水质管理 | Calcium Peroxide | 过氧化钙 | Magensium Peroxide | 过氧化镁