Heavy Calcium Carbonate CAS 471-34-1
Category：Inorganic Chemicals
Introduction
Molecular Formula: CaCO3
Molecular Weight: 100.09
CAS No.: 471-34-1
Names and Identifiers
| Name | Calcium carbonate |
| Synonyms | Chalk akadama albacar albafil albaglos aeromatt Limestone C.I. 77220 albacar5970 PARIS WHITE Calcium carbonate PRECIPITATED CHALK Oyster Shell Powder C.I. Pigment White 18 Calcium Carbonate Light Calcium Carbonate Heavy Weightily Calcium Carbonate Biological Calcium Carbonate |
| CAS | 471-34-1 13397-25-6 1317-65-3 |
| EINECS | 207-439-9 |
| InChI | InChI=1/CH2O3.Ca.2H/c2-1(3)4;;;/h(H2,2,3,4);;;/p-2/rCH2O3.CaH2/c2-1(3)4;/h(H2,2,3,4);1H2/p-2 |
| InChIKey | VTYYLEPIZMXCLO-UHFFFAOYSA-L |
471-34-1 – Physico-chemical Properties
| Molecular Formula | CCaO3 |
| Molar Mass | 100.0869 |
| Density | 2.93 g/mL at 25 °C (lit.) |
| Melting Point | 825 °C |
| Boling Point | 800 °C |
| Water Solubility | Insoluble |
| Solubility | 5 M HCl: 0.1M at20°C, clear, colorless |
| Appearance | White powder |
| Specific Gravity | 2.93 |
| Color | White-beige to slightly beige-gray |
| Odor | Odorless |
| Exposure Limit | NIOSH: TWA 10 mg/m3; TWA 5 mg/m3 |
| Solubility Product Constant(Ksp) | pKsp: 8.54 |
| Maximum wavelength(λmax) | [‘λ: 260 nm Amax: ≤0.09’, , ‘λ: 280 nm Amax: ≤0.06’] |
| Merck | 14,1657 |
| BRN | 8008338 |
| PH | 9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution); |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with acids, fluorine, ammonium salts, alum. |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.6583 |
| MDL | MFCD00010906 |
| Physical and Chemical Properties | Appearance and properties: odorless, tasteless white powder or colorless crystals. melting point (℃): 825 (decomposition) boiling point (℃): No data relative density (water = 1): 2.70-2.95 solubility: insoluble in water, soluble in acid. white powder, tasteless, odorless. There are two kinds of morphology: stereotyped and crystalline. The crystal type can be divided into orthorhombic crystal system and hexagonal system, which is columnar or diamond-shaped. The relative density was 2.71. 825~896.6 degrees C decomposition, melting point of 1339 degrees C, 10.7MPa melting point of 1289. Difficult to dissolve in water and alcohol. Soluble in acid, while releasing carbon dioxide, exothermic reaction. Also soluble in ammonium chloride solution. Stable in air, with slight moisture absorption. Have better hiding power. |
| Use | For the preparation of cement, ceramics, lime, calcium salt, toothpaste, dyes, pigments, mineral water, artificial stone, putty, neutralizers, catalysts, fillers, pharmaceuticals. it can be used as a filler in rubber, plastic, paper, putty, primer, coating and ink industries. Widely used in organic synthesis, metallurgy, glass and asbestos production. It can also be used as a neutralizing agent for industrial wastewater, an antacid agent for gastric and duodenal ulcer disease, an antidote for acidosis, a sulfur dioxide removing agent for sulfur dioxide in sulfur dioxide-containing waste gas, a dairy feed additive, and an anti-sticking agent for wool felt, etc. It can also be used as a raw material for tooth powder, toothpaste and other cosmetics. |
471-34-1 – Risk and Safety
| Hazard Symbols | Xi – Irritant |
| Risk Codes | R37/38 – Irritating to respiratory system and skin. R41 – Risk of serious damage to eyes R36/38 – Irritating to eyes and skin. R36 – Irritating to the eyes |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S37/39 – Wear suitable gloves and eye/face protection S37 – Wear suitable gloves. |
| UN IDs | N/A |
| WGK Germany | – |
| RTECS | FF9335000 |
| TSCA | Yes |
| HS Code | 28365000 |
| Toxicity | LD50 orally in Rabbit: 6450 mg/kg LD50 dermal Rat > 2000 mg/kg |
Description
Calcium Carbonate Heavy is a white powder, colorless and tasteless. It is stable in the air. It is almost insoluble in water, insoluble in alcohol. In the case of dilute acetic acid, dilute hydrochloric acid, dilute nitric acid, it is inflated and dissolved.
Application
Calcium carbonate has been widely used in paper, plastic, plastic film, chemical fiber, rubber, adhesives, sealants, household chemicals, building materials, paints, paints, inks, putties, sealing waxes, putty, felt packaging, and feed. The role is: increase product volume, reduce costs, and improve processing performance.
Specification
Appearance White powder.
Assay (Dry base) 98.0% ~ 100.5%
Loss on drying ≤ 2.0%
Acid-insoluble substance ≤ 0.20%
Iron ≤ 0.1%
Heavy metal ≤ 0.002%
Barium Pass the test
Lead ≤ 3ppm
Arsenic ≤ 3ppm
Limit of fluoride ≤ 0.005%
Mercury ≤ 0.5ppm
Magnesium and alkali salts ≤ 1.0%
TPC ≤ 1000CFU/g
Yeast & Mold ≤ 100CFU/g
Salmonella Negative
E.coil Negative
Staphylococcus Aureus Negative
Packing
25kg/composite paper bags or as per customer’s requirements.
Storage
Store in a cool and dry closed vehicle. Prevent from the sun, rain, leakage and pollution.
Minimum Order
1000kgs
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