2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)
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5949-29-1O.O=C(O)CC(O)(CC(=O)O)C(=O)OYASYEJJMZJALEJ-UHFFFAOYSA-NCitric acid monohydrate is an organic molecular entity.
5949-29-1DTXSID7074668CHEMBL2107737CHEBI:31404Dry Powder
White solid; Slightly deliquescent; [ICSC] White crystals; [Sigma-Aldrich MSDS]
SLIGHTLY DELIQUESCENT WHITE CRYSTALS.
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
This chemical does not meet GHS hazard criteria for 1.6% (18 of 1100) of reports.
Warning
H315 (14.2%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1100 reports by companies from 28 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Warning
Chemical: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1)
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Citric acid, monohydrate: Does not have an individual approval but may be used under an appropriate group standard
A mild eye irritant; Causes cough in acute inhalation studies of guinea pigs; Causes ataxia and respiratory depression in oral lethal-dose studies of mice; [RTECS] Aerosol causes skin, eye, and respiratory tract irritation; [ICSC] An irritant; May cause allergic reactions in sensitive individuals; [Sigma-Aldrich MSDS] See Citric acid.
CLEANING SOLUTION FOR HEMODIALYSIS MACHINES
Acidifying Activity [MoA]; Anti-coagulant [EPC]; Calculi Dissolution Agent [EPC]; Calcium Chelating Activity [MoA]; Decreased Coagulation Factor Activity [PE]
DESINFECTANT SOLUTION FOR HEMODIALYSIS MACHINE
Acidifying Activity [MoA]; Anti-coagulant [EPC]; Calcium Chelating Activity [MoA]; Decreased Coagulation Factor Activity [PE]; Calculi Dissolution Agent [EPC]
Agents that prevent BLOOD CLOTTING.
Substances that bind to and sequester CALCIUM ions.
Used as an anticoagulant in blood banks, acidulant (beverages, confectionery, cheese, effervescent salts, pharmaceutical syrups, elixirs, effervescent powders, and tablets), antioxidant, sequestering agent to remove trace metals, and mordant to brighten colors; Also used to make alkyd resins and in electroplating, special inks, and analytical chemistry; [Merck Index]
Electroplating [Category: Plate]
EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
読み込み中…
化学的特性Citric acid monohydrate occurs as colorless or translucent crystals or as a white crystalline, efflorescent powder. It is odorless and has a strong acidic taste. The crystal structure is orthorhombic. monohydrate crystals lose water of crystallization in dry air or when heated to about 40 to 50℃. Citric acid monohydrate softens at 75℃ and melts at approximately 100℃. It serves as a natural preservative and is commonly utilized to contribute an acidic or sour taste to foods and soft drinks.Citric acid monohydrate acts as a preservative and antioxidant. It is also used as an acidulant, flavoring agent and antistaling agent in fruit drinks, candy, cookies, biscuits, canned fruits, jams, and jellies. It differs from other forms of citric acid by having a moisture percentage ranging from 7.5-9.0.
Skin Irrit. 2 (14.2%)
Skin Irrit. 2 (100%)
Eye irritation - category 2A
Fresh air, rest.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Give one or two glasses of water to drink.
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
Cough. Sore throat.
Redness.
Redness. Pain.
Burning sensation.
用途汎用試薬、調製液原料。
用途製薬、製剤原料。
用途汎用試薬、調製液原料、くえん酸塩製造原料。
使用Citric Acid Monohydrate is a tricarboxylic acid found in citrus fruits. Citric acid is used as an excipient in pharmaceutical preparations due to its antioxidant properties. It maintains the stability of active ingredients and is used as a preservative. It is also used as an acidulant to control pH and acts as an anticoagulant by chelating calcium in the blood. Additionally, Citric Acid Monohydrate is used as an acidulating, food additive, and synergist in antioxidant mixtures.
一般的な説明Citric acid monohydrate is an organic acid. Its molar enthalpy of solution in water has been reported to be ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061 ± 123)Jmol-1
製造方法Currently, the industrial production process for citric acid monohydrate crystals involves several steps. First, the citric acid fermentation liquid is separated from the solid-liquid to obtain a citric acid clear liquid. Then, the clear liquid undergoes purification via the calcium salt method (hydrogen calcium method), acidolysis, and decolorization. This purified solution is then heated, concentrated, and crystallized to produce anhydrous citric acid. The mother liquor remaining from this process is then filtered by plate and frame and added to a crystallization cylinder to reach a supersaturated state through cooling and precipitating the crystal. Once the temperature reaches around 13 ℃, the mixture undergoes centrifugal separation, and the resulting wet crystal is then dried in a dryer. The separated mother liquor, after being filtered, decolorized, and concentrated, is added back to the crystallization cylinder to repeat the above steps a total of four to five times. Finally, the mother liquor is returned to the extraction workshop for re-purification via chromatographic separation.
純化方法Crystallise it from hot H2O solution (w/w solubility is 54% at 10o, 71% at 50o and 84% at 100o. The monohydrate (softens at ~75o and melts at ~100o) dehydrates in air or when heated gently above 40o . The triethylester ( M 276.3, b 127o/1mm, 294o/atm, d 4 1.137, n D 1.4420.) is a bitter tasting oil. [Beilstein 3 H 556 and 568, 3 IV 1272.]
定義本品は、次の化学式で表される有機酸である。