Name | Calcium chloride dihydrate |
Synonyms | snow melt agent calcium dichloride replenisher(calcium) Calciumchloride,granular Calcium chloride dihydrate CalciumChlorideDihydrateAr calciumdichloridedihydrate CalciumChloride,1MSterileSolution CalciumChlorideDihydrateCaCl2*2H2O |
CAS | 10035-04-8 |
EINECS | 600-075-5 |
InChI | InChI:1S/Ca.2ClH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2 |
InChIKey | LLSDKQJKOVVTOJ-UHFFFAOYSA-L |
Molecular Formula | CaCl2H4O2 |
Molar Mass | 147.01 |
Density | 1.71g/mLat 25°C(lit.) |
Melting Point | 30°C |
Boling Point | 100℃ at 760 mmHg |
Water Solubility | 1000 g/L (0 ºC) |
Solubility | H2O: 1M at20°C, clear, colorless |
Vapor Presure | 0.01 mm Hg ( 20 °C) |
Appearance | Crystallization |
Specific Gravity | 0.835 |
Color | White to white-grayish |
Odor | Odorless |
Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.015', , 'λ: 280 nm Amax: 0.012'] |
Merck | 14,1659 |
PH | 4.5-8.5 (50g/l, H2O, 20℃) |
Storage Condition | Store at +15°C to +25°C. |
Stability | Stable. Hygroscopic. Incompatible with vinylmethyl ether. |
Sensitive | Hygroscopic |
Refractive Index | ~1.358 |
MDL | MFCD00149613 |
Physical and Chemical Properties | Colorless crystals, general goods are white, gray-white or slightly yellow crystals, bitter and astringent, deliquescent. The relative density was 1.835. Soluble in water, the aqueous solution is neutral or slightly alkaline, corrosive. Soluble in alcohol, insoluble in ether. Dehydration became anhydrous upon heating to 260 °c. Other chemical properties are similar to anhydrous calcium chloride. |
Use | Oxygen, sulfur absorbent. Food protective agent. Sizing agent. Water purification agent. Antifreeze. |
Risk Codes | R36 - Irritating to the eyes R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24 - Avoid contact with skin. S22 - Do not breathe dust. S36 - Wear suitable protective clothing. |
WGK Germany | 1 |
RTECS | EV9830000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 28272000 |
Reference Show more | 1. Zhou Zhenhui, Xiang Shuangyun, Guan Wenyi, et al. Study on Microencapsulation Conditions of Lactic Acid Bacteria from Chicken [J]. Feed Research, 2019, 042(002):81-83. 2. Lin Kuan, Li Chunmei. Effects of Persimmon Tannin on Intestinal Microbes in Simulated Fermentation Environment in Vitro [J]. Food Industry Science and Technology, 2015, 36(022):160-163,167. 3. Li Wei, Chen Liang, Yin Dan, Yang Hao, Zhou Jiayi, Song Yu, Zhang Yan, Zou Liang. Preparation of Tetramethylpyrazine Ocular Liposome Thermosensitive Gel and Evaluation of Its Characteristics in Vitro and in Vivo [J]. Chinese Pharmacy, 2021,32(03):320-327. 4. Yang Yutong, Zhang Qingshuo, Fu Yunlin, Sun Jing. Pigment Composition, Stability and Antioxidant Activity of Dalbergia Bari Heartwood [J]. Forestry Science, 2021,57(03):126-134. |
colorless crystals. Odorless, slightly bitter; Easily deliquescent. Soluble in water, soluble in alcohol, insoluble in ether. Its aqueous solution is neutral or weak alkaline, corrosive. Dehydration became anhydrous upon heating to 260 °c.
After purifying and clarifying the distillation waste liquid in ammonia-alkali soda ash production, it is evaporated in the multi-effect evaporator. When the calcium chloride content reaches about 40%, the sodium chloride in the solution is almost completely precipitated, after centrifugal separation, the mother liquor of sodium chloride was separated and added with arsenic removal agent and heavy metal removal agent for solution purification and filtration to remove impurities such as arsenic and heavy metals. It is sent to the evaporator to continue evaporation and concentration, so that the calcium chloride content reaches about 70%, and the calcium chloride product is obtained by condensation.
This product contains gasified calcium (CaCl2.2H20) should be 97.0% ~ 103.0%.
for regulating water, electrolytes and acid-base balance. Suitable for calcium deficiency and allergic diseases. Can be used for decreased blood calcium caused by tetany and intestinal colic, ureteral colic and so on. Can also be used for urticaria, exudative edema, itching skin disease, vitamin D deficiency rickets, rickets, pregnant and lactating women calcium salt supplement.
The product of the aqueous solution of calcium salt and chloride identification reaction (General 0301).
should be stored in a cool, ventilated, dry warehouse. Packaging containers must be sealed and moisture-proof. It is not allowed to be stored and mixed with toxic and hazardous materials and pollutants. During transportation, attention should be paid to rain and sun exposure. When loading and unloading should be light to prevent damage to the packaging bag. Fire can be suppressed by water, sand and various kinds of fire extinguishing.
take l.Og of this product, add water 20ml to dissolve, shake, according to the law (General 0631),pH value should be 6.0~9.2.
take this product l. After 10ml of water is added for dissolution, the solution shall be clear and colorless (General rule 0901 and general rule 0902). In case of turbidity, the solution shall not be more concentrated compared with No. 1 turbidity standard solution (General rule 0902).
take l.Og of this product and check it according to law (General rule 0802). Compared with the control solution made of 0.02% of standard potassium sulfate solution, it should not be more concentrated ().
take 2.0g of this product, add 20ml of water to dissolve, filter, the filtrate is divided into two equal parts, add 5ml of newly prepared calcium sulfate test solution in one part, and add 5ml of water in the other part, allow to stand for 1 hour, both solutions should be clear.
take this product l. After 20ml of water is added for dissolution, 2 drops of dilute hydrochloric acid and 1 drop of phenolphthalein indicator solution are added, and ammonium chloride is added dropwise until the solution shows pink color and is heated to boiling, without turbidity or precipitation.
salt take this product l. After adding 40ml of water to dissolve, add 0.5g of ammonium chloride, boil, add excess ammonium oxalate solution to completely precipitate calcium, heat on water bath for 1 hour, and let it cool, quantitatively transfer to a 100ml measuring flask, dilute to scale with water, shake well, filter, precisely measure 50ml of filtrate, add 0.5 m l sulfuric acid, evaporate to dryness, and burn to constant weight, the remaining residue should not exceed 5mg.
take 2.0g of this product, add 2ml of acetate buffer solution (PH3.5) and an appropriate amount of water to dissolve it into 25ml, and check according to law (the first method of general rule 0821), and the heavy metal content shall not exceed 10 parts per million.
take 1.0g of this product, add 5ml of hydrochloric acid and 23ml of water, and check according to law (General rule 0822 first law), shall comply with the provisions (0.0002%).
take about 1.5g of this product, weigh it accurately, put it in a 100ml measuring flask with 10ml of water in advance, dilute it with water to the scale, shake it well; Take 10ml of precision measurement, put it in an Erlenmeyer flask, add 90ml of water, 15ml of sodium hydroxide test solution and about 0.lg of calmenin indicator, titrate with ethylenediamine tetraacetic acid disodium titration solution (0.05mol/L) until the solution changes from purple to pure blue.
equivalent to 7.351mg of CaCl2 • 2H20 per 1 ml of ethylene diamine tetraacetic acid disodium titration solution (0.05mol/L)pharmaceutical excipients, osmotic regulator.
sealed and stored in a dry place.