High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide with good price
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- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 20000 m.t/month
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Specifications
1.Calcium hydroxide
2.Cas no.:1305-62-0
3.Purity:offwhite graules
4.Conent 95% min /98% min
5.25kgs per bag
calcium hydroxide
Description
calcium hydroxide is a kind of grey powder. It consists of calcium oxides, silicon dioxide, ferric oxide and little other ingredients. When mixed with appropriate water and poured into the pre-drilled holes, it will start to expand after half an hour, the expanisve power is increasing as time goes on. It can get 100-123 Mpa expansive power after some hours. Generally, the rock or concrete belongs brittle material, their tensile strength are far less than the compressive strength (for the tensile strength, rock is 1.96-30Mpa while concrete is 1.5-4.0 Mpa, they are equal to 1/10-1/20 of their compressive strength). Therefore, reasonable hole design can easily crack the rock and concrete or reinfored concrete by our BREAK-AG. As usal, it can crack the materials in around 2-24 hours. It is soundless, non-explosive, no noise, no vibration, no flying rock during the process of demolition.
Application
1. Mainly adjust acid waste water pH value, widely used for electroplate, chemical industry, circuit board, pickling, printing & dyeing and paper making, industries waste water treatment.
2. Used to remove phosphate,most of the heavy metal and ammonia nitrogen etc.
3. Used for tanning and mining industry etc.
| Type Of Test | Standard | Observed |
| Description | White light powder | White light powder |
| Assay | (Min.) 96.0% | 96.58% |
| Calcium carbonate (as CaCO3) | <3.0% | 2% |
| Substance insoluble in HCl | <0.1% | <0.1% |
| Chloride (Cl) | <0.03% | <0.03% |
| Sulphate (SO4) | <0.1% | 0.08% |
| Iron (Fe) | <0.05% | <0.05% |
| Heavy metals (as Pb) | <0.005% | 0.004% |
| Substance not precipitated by | ||
| ammonium oxalate (as SO4) | <2.5% | <2.5% |
Package, transportation and storage
Transportation: the product should be protected from damp, rainfall and package damage in transportation.
- 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:Our home often burn porridge which put a little alkali inside, so delicious, more entrance, eat often harmful to the health of it?
- Simply said, harmful, will damage the body's internal and alkali balance, easy to get sick.
- Q:I have been very confused, baking soda and edible alkali surface is the same thing? Tea in the consumption of baking soda is not become alkaline? Can drink? How to quickly become alkaline? In addition to more melon Fruit and vegetables outside
- General baking soda can be in the food additives store can buy baking soda. Chemical reagent points can also buy baking soda.
- Q:What is alkali active aggregate?
- In the construction process sometimes encounter the following questions: What is the alkali active aggregate? How does it determine that the aggregate is an alkali-active aggregate? Before answering this question, let's say what is the alkali-aggregate reaction. The alkali-aggregate reaction refers to the soluble alkali (K) in the cement, admixture, admixture or mixed water *, Na *) is dissolved in the concrete void fluid and reacts with the active ingredient (such as SiO2) with the alkali in the aggregate after the coagulation and hardening of the concrete, resulting in alkali-containing gel, water swelling, Internal stress and cracking. It can make a serious decline in the durability of concrete. It is difficult to prevent its development, it is difficult to repair.
- Q:What is the use of alkali?
- Can be removed in the clothes when the clothes on the oil, you can neutralize the sour in the face, you can make the porridge easier to boil.
- Q:What to do with the wall
- Wall anti-alkali because there is moisture into the solution is to remove the wall, paint interface agent, brush alkali primer, scraping gypsum, and then putty powder, polished roller or spray latex paint on it.
- Q:A bit tall please help me one!
- It is understood that, in order to maintain the sustainable development of the battery industry, China Battery Industry Association to "environment-friendly and harmonious development" as the theme, in August this year, organized a nationwide "green alkaline manganese battery products" evaluation activities. After testing, Guangzhou Hutou Battery Group Co., Ltd. production of "555" brand alkaline manganese batteries and other 11 key enterprises of alkaline manganese batteries mercury content are lower than the mercury-free mercury content limit indicators, in full compliance with the provisions of the national nine ministries.
- Q:And how to do the big face ah?
- In fact, the biggest drawback of alkali is the steaming steamed bread turned yellow does not look good, but the big baked bread is very delicious ah ~ I feel better than the normal bread ~ ~ I think their family to eat, but also eat only The most important
- Q:How to see the whole bread of the alkali alkali small
- Sniffing Such as the smell of the dough, indicating that the alkali is placed properly. (4) catch. Hand dough, such as dough sinking, inelastic, that the alkali put more; if not sticky, nor sink, and there is a certain flexibility, that alkali is just right. (5) taste. Will be rubbing the base of the dough to pull a little bit into the mouth taste, if the sour that alkali less; if the alkali astringent taste, that the alkali put more; if you feel sweet, that is, alkali is appropriate The
- Q:What are the characteristics of the composition of the base?
- The anions obtained when ionizing are all OH- are bases; alkali: OH- and metal ions (or NH4).
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High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide with good price
- 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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