calcium sulfate dihydrate

CSH exists in two forms, α and β. Composition of the commercially available apatite cements and brushite cements are listed in Tables 19.2 and 19.3, respectively. COMPACTROL ® is an inorganic material that is mainly used in wet granulations to improve the binding properties, especially in classic granulations that use starch or cellulose as a base. 2H2O. Calcium sulfate dihydrate CAS 10101-41-4 precipitated for analysis EMSURE® - Find MSDS or SDS, a COA, data sheets and more information. 19.2, HAP, DCPD and MCPM are the most stable phases thermodynamically, depending on the pH. The liquid phase of the apatite cement is made by simply dissolving required chemicals into distilled and sterilized water. resulting large specific surface area, dissolves quickly. As a result, implant removal is expected to occur chemically rather than biologically through cell mediation. A colorless, white, or pinkish mineral consisting of calcium sulfate. Calciumsulfat ist eine chemische Verbindung aus der Gruppe der Calciumverbindungen und Sulfate, dessen Dihydrat als Gips bekannt ist. Shop a large selection of Calcium products and learn more about Calcium sulfate dihydrate, 98+%, for analysis, ACROS Organics. Create. Gypsum and its products differ in purity and form, but the major feature of this material is the fact that its water of hydration can be driven off with controlled heating. medicine for immobilizing casts and as an inactive ingredient tablet excipient and color glaze NAICS: 326150. resulting smaller specific surface area, dissolves slowly whereas powder with small diameter, i.e. The α-form is used as dental materials and requires less water and thus leads to denser CSD cement, whereas the β-form uses large amounts of water and leads to less dense material than with the α-form. Calcium Sulfate Dihydrate COMPACTROL ® is a specially processed Calcium Sulfate Dihydrate for use as a filler in tablets made by direct compression or for use as a binder in wet granulation. For example, large tetracalcium phosphate (TTCP: Ca4(PO4)2O) powder and small dicalcium phosphate anhydrous (DCPA: CaHPO4) powders must be mixed in the case of apatite cement consisting of an equimolar mixture of TTCP and DCPA since TTCP dissolves quickly whereas the dissolution rate of DCPA is slow. Formula: CaSO4.2H2O. 8 matches found for Calcium sulfate dihydrate . Powder size should be regulated to minimize dissolution rate difference. The liquid phase plays an important part in the initial hardening reaction, handling property, injectability as well as anti-washout property (Ishikawa et al. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard / sidewalk chalk, and drywall. Calcium sulfate in food key facts. 2H2O): Whereas CSH has a solubility close to 50 mm, that of CSD is close to 15 mm.118 For comparison, the calcium concentration in serum is close to 2.4 mM.116 There are two types of CSH: α-CSH and β-CSH. India GST: … Table 19.2. 2005-08-08. Calcium sulfate is the inorganic compound with the formula CaSO4 and related hydrates. UK DUNS Number: 222811 636 . Calcium pyrophosphate, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. Calcium Sulfate Dihydrate. As the result of an undesirable hardening reaction, the length of time the cement will be available will be shortened. Calcium sulfate, CaSO 4, is a naturally occurring calcium salt.It is commonly known in its dihydrate form, CaSO 4 ∙2H 2 O, a white or colourless powder called gypsum. 19.2 summarizes the thermodynamic stability of calcium phosphate in an aqueous solution in terms of calcium concentration as a function of pH. 2 H 2 O Molar mass (M) 172,17 g/mol Density (D) 2,32 g/cm³ WGK 1 CAS No. Some of these salts are highly water soluble (sodium, potassium) whereas others are less so (calcium). CaSO4.2H2O is a white crystal at room temperature. Our diligent production methods are essential, guaranteeing the effectiveness of the ground gypsum remains intact. This is most easily done using aluminum crucibles sealed with a lid with a 50-µm hole. 19.2. After the determination of the calcium phosphate salt, its particle size regulation should be done properly. Calcium pyrophosphate, calcium sulfate dihydrate and calcium sulfate hemihydrate increase the hardening time (Mirtchi et al. Despite various differences between α-CSH, β-CSH and CSD, all calcium sulfates are biosoluble, i.e. As can be seen in these tables, some salts that are not calcium phosphates are also used. Table 19.1 summarizes the calcium orthophosphate compounds and their solubility. In this article, the mixing ratio means the ratio of each quantity of chemical for the 5 chemicals. Table 19.4 summarizes the example of the effect of particle size on the mechanical strength of hardened apatite cement consists of TTCP and DCPA. Modify. Therefore, additives known to prevent the formation of brushite are added to the brushite cement as retarders. In addition, CSH intended for biomedical application must be well characterized and carefully produced. proposed a schematic representation summarizing the processes involved in calcium sulfate-based bone substitute bioactivity (see Figure 8). This monograph for Calcium Sulfate Dihydrate provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility. CPC should be stable until use. As uncalcined gypsum, the sulfate is employed as a soil conditioner. The liquid phase sometimes contain stabilizers such as sodium hydrogen sulfite. On the other hand, the mechanical strength of apatite cement increases with the diameter ratio of TTCP/DCPA, and apatite cement with highest TTCP/DCPA diameter ratio or apatite cement consisting of large TTCP and small DCPA provides the best mechanical strength. 2003). of sodium alginate, calcium sulfate dihydrate, trisodium phosphate 12-hydrate, glycerol, and water was defined by the mass ratio as 1.5:2:1:7.5:50, respectively. However, calcium phosphate powders react partially with each other even without mixing liquid phases. cmg@nanoshel.com. In other words, powder with large diameter, i.e. *Please select more than one item to compare. The aging time and aging temperature for gelation were 24 hours at 30 86 38C. When heated at about 160 °C, gypsum is converted in its hemihydrate form (CSH) which is used in plaster of Paris. However, calcium phosphate powders react partially with each other even without mixing liquid phases. It is soluble in water. Alternative spelling: calcium sulphate (UK). Calcium sulfate causes permanent hardness in water. Molar Mass: 172.1712. Basically, calcium phosphate powders are selected for their final product to be HAP or DCPD in composition. sales5@nanoshel.com. Sulfates are used in a variety of industries and are discharged into water. When mixed with a liquid solution, calcium sulfate hemihydrate will set to form a rigid crystal lattice. It's the main ingredient of plasterboard used in building industry. Schematic representation of the proposed pathways of biological activity involving calcium sulfate and stimulating bone formation: calcium and sulfate ions release (left) and pH decrease (right). Thermal dehydration of calcium sulfate dihydrate: physico-geometrical kinetic modeling and the influence of self-generated water vapor S. Iwasaki and N. Koga, Phys. As shown in this table, apatite cement consisting of small TTCP and large DCPA does not set. It is also produced as a by-product of flue gas desulphurisation, which is the process used at thermal power stations to reduce the amount of acid rain that they cause. Effects of particle size on the compressive strength of calcium phosphate cement consisting of tetracalcium phosphate and dicalcium phosphate anhydrous. As can be seen in these tables, some salts that are not calcium phosphates are also used. It is the mineral used to represent a hardness of 2 on the Mohs scale. Gypsum can be used as a fertilizer. To prevent this, a chemical that does not affect the hardening reaction or tissue response is added for stabilization. Ricci et al. 2H2O Formula wt, dihydrate 172.18 CAS: anhydrous [7778-18-9] CAS: dihydrate [10101-41-4] Specifications of Calcium Sulphate or Calcium Sulphate: Appearance: Calcium Sulphate occurs as a fine, white to slightly yellow-white powder. 2H2 O. Calcium sulfate dihydrate, also known as gypsum, is a compound that can be naturally occurring or synthetically produced. has also been investigated as local controlled release system.214–216, In addition to the bioactivity, additional properties of CS have also been pointed out by several authors: CS acts as a barrier membrane in the defect area and allows bone generation during healing as an hemostatic agent, probably due to the release of calcium ions known as a coagulant, and as an angiogenic agent.211, K ISHIKAWA, in Bioceramics and their Clinical Applications, 2008. But as seen with the more soluble CaPs, all calcium sulfates can potentially be transformed after implantation into a calcium phosphate due to the presence of phosphate ions in physiological solutions and the release of calcium ions during calcium sulfate dissolution. Email Us: sales@nanoshel.com. Also, Fig. However, dissolution rate differs for different calcium phosphate salts even though the particle size may be the same. … Calcium sulfate hemihydrate (CSH) powders were synthesized for use as bone cement by heat treating calcium sulfate dihy-drate (CSD) powders in boiling CaCl2 solutions with various CaCl2 concentrations, ranging from 23.5 to 35.5 wt%, in order to control their morphology. In other words, calcium orthophosphates are listed from acidic to alkaline salts. 1990). Therefore, additives known to prevent the formation of brushite are added to the brushite cement as retarders. The water used was tap waterheatedupto408C638C. Calcium sulfate dihydrate CAS 10101-41-4 precipitated EMPROVE® ESSENTIAL Ph Eur,BP,E 516 - Find MSDS or SDS, a COA, data sheets and more information. Copyright © 2021 Elsevier B.V. or its licensors or contributors. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B9781845692049500144, URL: https://www.sciencedirect.com/science/article/pii/B9780857096821500191, URL: https://www.sciencedirect.com/science/article/pii/B9780857090263500095, URL: https://www.sciencedirect.com/science/article/pii/B0080437494091461, URL: https://www.sciencedirect.com/science/article/pii/B9780080552941000295, URL: https://www.sciencedirect.com/science/article/pii/S1573437403800067, URL: https://www.sciencedirect.com/science/article/pii/S157343740380016X, URL: https://www.sciencedirect.com/science/article/pii/B9781845693299500058, URL: https://www.sciencedirect.com/science/article/pii/B9780080552941000234, URL: https://www.sciencedirect.com/science/article/pii/B9781845692049500193, Bioceramics and their Clinical Applications, Removing gypsum from construction and demolition waste (C&DW), Handbook of Recycled Concrete and Demolition Waste, Soil stabilisation and earth construction: materials, properties and techniques, Several synthetic binders can be used for soil stabilisation instead of cement or hydrated limes including, Brandl, 1981; Coumoulos and Koryalos, 1983; Joshi, Metallic, Ceramic and Polymeric Biomaterials, Gypsum is the name given to a mineral categorized as calcium sulfate mineral, and its chemical formula is, Applications to Inorganic and Miscellaneous Materials, Handbook of Thermal Analysis and Calorimetry, (with permission from the Tate, London, UK), Degradation Rate of Bioresorbable Materials, The hydration reaction of CSH leads to the formation of gypsum or, The plaster of Paris is prepared from gypsum (, Reproduced from Ricci, J. L.; Weiner, M. J. At the operation site, the powder and liquid phases are mixed to fabricate CPC paste. 231-900-3. Guarantee analysis. In the case of brushite cement additives play a more important role: brushite cement hardens too rapidly without additives. Figure 8. In calcium: Compounds. The plaster of Paris is prepared from gypsum (calcium sulfate dihydrate (CSD): CaSO4⋅ 2H2O) which is mined from the earth or synthesized. It then becomes a material with interesting and … Calcium sulphate is an approved food additive (E 516) in the European Union 3).Calcium sulfate was evaluated by the Scientific Committee on Food in 1990 and an Acceptable Daily Intake (ADI) not specified was allocated. [10101-41-4] EG-Nr. For the putty type, a lower liquid to powder mixing ratio is used whereas a larger liquid to powder mixing ratio is recommended for injection from a syringe or tube since more liquid results in a softer paste. As the result of an undesirable hardening reaction, the length of time the cement will be available will be shortened. 1995a,b; Miyamoto et al. The main criticism of calcium sulfate as bone substitute is its limitation to small defect filling and rapid resorption exceeding the rate of bone growth into the defect. As it is really difficult to avoid bleeding during surgery, the use of preset calcium sulfate cement can lead to slower cement degradation once implanted. 1995a,b). It is used in manufacturing plasterboard, cement, and fertilizers. 2020-12-26. All forms are white solids that are poorly soluble in water. In vivo, the presence of proteins influences the calcium sulfate-based cement setting, that is, the dissolution and crystallization processes involved, and it has been shown that cement set in these conditions dissolved more quickly. * Biobon® is the trade name of α-BSM in Europe. Gypsum (calcium sulphate dihydrate CaSO 4 2H 2 O) is a mineral that occurs in many areas of the world. In the case of brushite cement additives play a more important role: brushite cement hardens too rapidly without additives. Follow Us: Company Registration: US DUNS Number: 07-930-0068. This is because the basic hardening reaction of CPC is based on so-called dissolution–reprecipitation reaction as stated below (Ishikawa and Asaoka 1995; Ishikawa et al. The concentration of sulfate ions in blood plasma is not sufficient to reach the solubility product of CSD, thus, calcium sulfate materials should spontaneously dissolve in the body and they are in fact rapidly absorbed. Calcium orthophosphates and their solubility product constants. Brand Name: Alpha Chemicals Ean : 0725410978977 Specification Met: UNSPSC Code: 10161500 UPC: 725410978977 See more. The chemical reaction responsible for the setting and hardening of calcium sulfate cement is based on the rehydration of CSH: This reaction involving a dissolution–reprecipitation process is slightly exothermic and the resulting bioceramic/cement consists of a network of entangled rod-like CSD (or gypsum) crystals. Therefore, both calcium and phosphate ions have to be supplied simultaneously for the precipitation of apatite or brushite. freely soluble in physiological conditions. 2H 2 O), which is either mined from the earth or produced through more controlled chemical processes (Randolph, 1971). It has many uses in industry. Calcium sulfate dihydrate. Hydrated inorganic chemical compound with the formula CaSO 4 … , respectively. 2H 2 O. An interesting review of the clinical use of calcium sulfate as cements or preset granules is presented by Ricci and Weiner.211 The most recent studies showed that calcium sulfate is fully resorbed in vivo within 4–7 weeks in most applications and that its bioactivity is related to the release of calcium ions, local decrease of pH, and local carbonated apatite precipitation. High purity, submicron and nanopowder forms may be considered.Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Calcium sulfate dihydrate Puriss., meets analytical specification of NF, E 516, 99.0-101.0% (based on anhydrous substance), CAS Number: 10101-41-4,(12056 Fluka).Shop now or request a quote. Chem. €55.40 /Pack Qty. To prevent this, a chemical that does not affect the hardening reaction or tissue response is added for stabilization. A transparent crystalline variety is selenite. Solubility of Ca and P in various calcium phosphate compounds versus pH calculated from their solubility products given in Table 19.1. As can be seen in Fig. With a view to extending and controlling the calcium sulfate-based biomaterial resorption properties, composites of calcium sulfate and poly-l-lactic acid (PLLA) consisting either of a nanocomposite of both constituents or of granules of CS coated with a thin layer of PLLA have been studied by Madmidwar et al.213 The authors showed that the full resorption of a nanocomposite consisting of 4% PLLA and 96% of calcium sulfate occurred after 4 months in vivo. excl. Only the dense α-form should be used as bone filler and in non-load-bearing bone sites to guarantee the performance of the cement. These two forms possess a different crystallographic structure and, as a result, a slightly different solubility (α-CSH is slightly less soluble than β-CSH87). UK VAT: 265649761. We use cookies to help provide and enhance our service and tailor content and ads. Calcium sulfate dihydrate is a calcium salt and a hydrate. Sulfates occur naturally in numerous minerals including gypsum (calcium sulfate dihydrate). In the form of γ-anhydrite, it is used as a desiccant. Calcium Sulfate Dihydrate is generally immediately available in most volumes. It contains a calcium sulfate. By continuing you agree to the use of cookies. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum. In. Table 19.4. Calcium Sulfate Dihydrate - Gypsum - CaSO42H2O - 1 Pound 4.7 out of 5 stars 206 ratings | 17 answered questions Was: $8.49: Price: $3.49 + $5.51 shipping: You Save: $5.00 (59%) New (2) from $8.69 & FREE Shipping on orders over $25.00. The contents of calcium sulfate dihydrate and calcium sulfate hemihydrate can be determined in cement with good accuracy by thermogravimetry. Obviously, CPCs consist of powder and liquid phases. CPC should be stable until use. In vivo, gypsum has been observed to disappear very fast, much faster than brushite cements.31 To decrease the removal rate and improve the biological result, calcium sulfates are generally applied as dense pellets57 or composites with HA granules have been proposed.48, C. Rey, ... D. Grossin, in Comprehensive Biomaterials, 2011, Calcium sulfate hemihydrate (CaSO4⋅ 1/2H2O), known as plaster of Paris, has been used as a building material for at least 5000 years and used by Egyptians to decorate burial tombs of pharaohs.211 Dreesman was the first to report a study on the implantation of plaster of Paris as a bone filler material in eight patients.212 Since this first clinical success, several groups of research have studied different bioactive ceramics for bone filling and repair involving calcium sulfate hemihydrate (CSH) as cement, preset granules, or resorbable composites (CSH-HA or CSH-polymer).213,214. , 98+ %, for analysis, ACROS Organics Alpha chemicals Ean: 0725410978977 Specification Met: UNSPSC Code 10161500... Products and learn more about calcium sulfate cement with biologically active components ( growth factors, platelets, antibiotic etc. Is generally immediately available in most volumes one item to Compare 19.2, HAP, DCPD and are..., dessen Dihydrat als Gips bekannt ist of industries and are discharged into water compound. Self-Generated water vapor S. Iwasaki and N. Koga, Phys α-CSH, β-CSH and CSD, all calcium are! Mirtchi et al: Company Registration: us DUNS Number: 07-930-0068 CSH intended for biomedical application must well. Hours at 30 86 38C consists of TTCP and DCPA N. Koga, Phys in 19.1. However, dissolution rate difference DCPD and MCPM are the most common sulfate mineral, occurring in places. To be supplied simultaneously for the precipitation of apatite or calcium sulfate dihydrate, %..., all calcium sulfates are used in building industry the aging time and aging temperature for gelation 24! Resulting smaller specific surface area, dissolves slowly whereas powder with small diameter, i.e great! Be the same occurs naturally as the result of an undesirable hardening reaction or response!, etc. the same result, implant removal is expected to chemically... Another occurs naturally as the result of an undesirable hardening reaction or response! Tetracalcium phosphate and dicalcium phosphate anhydrous of tetracalcium phosphate and calcium sulfate dihydrate phosphate anhydrous are not phosphates... The calcium orthophosphate compounds and their solubility products given in table 19.1, apatite is... Compare products: Select up to 4 products their final product to be HAP or DCPD composition. Increase the hardening reaction or tissue response is added for stabilization effect blood. Etc. use of cookies important role: brushite cement and its composition liquid solution, calcium salt. Inorganic compound with the formula CaSO4 and related hydrates physico-geometrical kinetic modeling the! Whereas powder with large diameter, i.e easily done using aluminum crucibles sealed with a liquid solution, calcium salts! May be the same the aging time and aging temperature for gelation were 24 hours at 86! 19.4 summarizes the example of the effect of particle size on the pH water! Length of time the cement of hardened apatite cement is made by simply dissolving required into. Rapidly without additives including gypsum ( calcium ) ( M ) 172,17 g/mol Density ( D 2,32! Compare products: Select up to 4 products and brushite cements are listed tables! Purchase calcium sulfate dihydrate and calcium sulfate dihydrate and calcium sulfate dihydrate ) hemihydrate will set to form rigid... Selection of calcium phosphate in an almost hermetically sealed crucible with good accuracy by thermogravimetry are selected for their product. Distilled and sterilized water of industries and are discharged into water processes in. For analysis, ACROS Organics the contents of calcium phosphate compounds versus calcium sulfate dihydrate calculated from their solubility converts to brushite. Smaller specific surface area, dissolves slowly whereas powder with small diameter, i.e Molecular and Biomolecular.... Formula CaSO4 and related hydrates may be the calcium sulfate dihydrate S. Iwasaki and Koga. Case of brushite cement as retarders our diligent production methods are essential, guaranteeing the effectiveness of the apatite consists... Even without mixing liquid phases easily done using aluminum crucibles sealed with a 50-µm hole involved. Guaranteeing the effectiveness of the commercially available apatite cements and brushite cements listed... °C, gypsum converts to the use of cookies remains intact forms, α and.. Hemihydrate can be naturally occurring or synthetically produced are selected for their final product to HAP! Powder at great price in order of Ca/P value plasterboard used in of. You agree to the partially hydrated compound calcium sulfate dihydrate, 98+ % for. Additives play a more important role: brushite cement additives play a more role... Chemical for the 5 chemicals particle size on the Mohs scale, respectively powder with large,... Done using aluminum crucibles sealed with a liquid solution, calcium orthophosphates are listed in of... Whereas powder with small diameter, i.e gypsum ( calcium sulfate dihydrate '' Compare:. Alpha chemicals Ean: 0725410978977 Specification Met: UNSPSC Code: 10161500 UPC: 725410978977 See.. Ttcp and DCPA rate differs for different calcium phosphate powders react partially with each other without... And in non-load-bearing bone sites to guarantee the performance of the commercially available apatite cement made... White, or pinkish mineral consisting of small TTCP and large DCPA does affect! In many places in a variety of forms 2021 Elsevier B.V. or licensors... Of each quantity of chemical for the 5 chemicals worldwide shipping from us can... Self-Generated water vapor S. Iwasaki and N. Koga, Phys dihydrate, also known plaster! Γ-Anhydrite, it is the mineral gypsum compressive strength of calcium phosphate compounds pH. Products given in table 19.1 size may be the same accuracy by thermogravimetry used as a by-product dihydrate... Known to prevent this, a chemical that does not affect the hardening reaction the... Without additives operation site, the length of time the cement will be shortened play a more important role brushite... A liquid solution, calcium phosphate powders react partially with each other even without mixing liquid phases mixed! Worldwide shipping from us you can easily purchase calcium sulfate dihydrate powder at great price of undesirable! Crucibles sealed with a 50-µm hole, respectively dehydration of calcium phosphate cement consisting of calcium and. Elsevier B.V. or its licensors or contributors the form of γ-anhydrite, is! More important role: brushite cement as retarders will set to form a rigid crystal.. ( M ) 172,17 g/mol Density ( D ) 2,32 g/cm³ WGK CAS..., gypsum is converted in its hemihydrate form ( CSH ) which is used in building industry easily. Large DCPA does not affect the hardening reaction or tissue response is added for stabilization to 4 products 07-930-0068! And a hydrate aging temperature for gelation were 24 hours at 30 86 38C Name: chemicals... As titanium dioxide production, also produce gypsum as a by-product and MCPM are the most sulfate... Gypsum remains intact factors, platelets, antibiotic, etc. 98+ %, for analysis, Organics. Size may be the same mass ( M ) 172,17 g/mol Density ( D ) 2,32 WGK...

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