Calcium Hydroxide 96% (Cas No 1305-62-0)
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Specifications of Calcium Hydroxide 96% (Cas No 1305-62-0)
molecular formula: Ca(OH)2
CAS: 1305-62-0
Appearance: white powder
Properties:
Exquisite white crystalloid powder. A large slightly bitter alkali flavour. Easy to absorb carbon dioxide in the air and become calcium carbonate, hot to 522 °C dehydration into cao. The relative density 2.24 °C (at the same time, melting point 580 dehydrate). Soluble in acid, ammonium salt, glycerin, soluble in water, alcohol, is insoluble in water solution to the skin, alkaline, fabric have corrode action.
Use:
Used as carbon dioxide acidity gas such as absorbing hard water softener, disinfectants, making acid agents. Widely used in pharmaceutical, in organic synthesis.
Details:
Test item | Specification | |
Reagent grade | Pharmaceutical grade | |
Appearance | Conform | Conform |
Assay /% | ≥95.0 | ≥93.0 |
Hydrochloric acid /% | ≤0.05 | ≤0.1 |
Chloride (Cl)/% | ≤0.01 | ≤0.02 |
sulfur(SO4)/% | ≤0.2 | ≤0.3 |
Ferric (Fe)/% | ≤0.01 | ≤0.02 |
Alkali metal and magnesium (MgO)/% | ≤0.5 | ≤0.75 |
Heavy metal(Pb) /% | ≤0.002 | ≤0.003 |
Ammonia water insoluble/% | ≤0.25 | ≤0.5 |
- Q: What is white alkali?
- White alkali, base alkali is sodium carbonate, is a hydrolysis of alkaline water content of crystalline water carbonate, chemical composition of Na2CO3. Baking soda, also known as sodium bicarbonate, acid sodium carbonate, that is, NaHCO3, is a kind of salty white alkaline drugs. In addition to diet, but also in the medical field has a wide range of applications.
- Q: What is alkali sand
- Potassium carbonate, white crystalline powder. Density of 2.428g / cm3. The melting point of 891 ° C, the decomposition of boiling point, the relative molecular weight of 138.21. Soluble in water, aqueous solution is alkaline, insoluble in ethanol, acetone and ether. Hygroscopicity, exposure to air can absorb carbon dioxide and moisture, into potassium bicarbonate, should be sealed packaging. Hydrates have a water, dihydrate, sour things. Potassium carbonate aqueous solution is alkaline. Insoluble in ethanol and ether.
- Q: How does the edible base use?
- Avoid the food on the lye soak, so as to avoid raw materials rot, as long as the appropriate concentration of alkaline water will be repeated several times the raw material can be;
- Q: What is called alkali recovery
- Extraction equipment extraction status is good or bad, largely depends on the extraction of equipment. Different pulp, there are different equipment selection. At present the factory application is the most four series of drum-type vacuum washer. Its technology is mature, easy to operate, from the pulp into the pulp, the basic completion of the separation of pulp and black liquor, the extraction rate is also high. Pulp washing degree and the production of black liquor indicators are basically able to meet the choice of more manufacturers. The disadvantage is the big investment, power consumption.
- Q: Alkaline pool can breed what
- In the future of adult fish sales process found that after long-distance transport, part of the fish surface congestion, affecting the survival rate of transport and marketing. This may be associated with the addition of fish oil in the larger amount, resulting in high fish fat, muscle softness. Suggested in the late breeding, should reduce or even stop the addition of fish oil, and should increase the water flow, stimulate the fish, to achieve the purpose of exercise to improve the survival rate of transport.
- Q: What is the important character of Chinese made alkali?
- (1) NH3 + H2O + CO2 = NH4HCO3 (2) NH4HCO3 + NaCl = NH4Cl + NaHCO3 ↓ (3) 2NaHCO3 (heating) = Na2CO3 + H2O + CO2 ↑ That is: ① NaCl (saturated) + NH3 + H2O + CO2 = NH4Cl + NaHCO3 ↓ ②2NaHCO3 = Heating = Na2CO3 + H2O + CO2 ↑ Ammonia reacts with water and carbon dioxide to form a molecule of ammonium bicarbonate, which is the first step. The second step is: ammonium bicarbonate reacts with sodium chloride to form a molecule of ammonium chloride and sodium bicarbonate precipitation, sodium carbonate is precipitated because it is less soluble.
- Q: What is the name of the alkali?
- Our chemist Hou Diban, invented a [Hou Debang base of the law]. A sensation of the world. This is our pride.
- Q: That day, I put the alum in the water, and then I smell the gas, I would like to know the alkali is not harmful to people, right?
- Alkali has a strong role in degreasing, you can remove the oil on the dry goods on the excess oil;
- Q: What is the big base?
- Large alkali is the main component of sodium carbonate.
- Q: What is the harm to the human body?
- The disadvantage of soda ash is the vitamin B1, B2 and vitamin C in food have a strong destructive effect, and will affect the body of certain minerals absorption and utilization, and therefore can not be abused.
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Calcium Hydroxide 96% (Cas No 1305-62-0)
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 20000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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