Aluminum sulfate octadecahydrate
Patent alum
CAS: 7784-31-8
Molecular Formula: Al2H36O30S3
Aluminum sulfate octadecahydrate - Names and Identifiers
| Name | Patent alum |
| Synonyms | CAKE ALUM Patent alum ALUMINUM SULFATE - 18 H2O ALUMINUM SULFATE, HYDRATED Aluminiumsulfate,octadecahyd ALUMINIUM SULFATE-18-HYDRATE ALUMINUM SULFATE, 18-HYDRATE ALUMINUM SULFATE HEXADECAHYDRATE ALUMINUM SULFATE OCTADECAHYDRATE Aluminum sulfate octadecahydrate dialuminum trisulfate nonahydrate |
| CAS | 7784-31-8 |
| EINECS | 616-524-3 |
| InChI | InChI=1/2Al.3H2O4S.9H2O/c;;3*1-5(2,3)4;;;;;;;;;/h;;3*(H2,1,2,3,4);9*1H2/q2*+3;;;;;;;;;;;;/p-6 |
Aluminum sulfate octadecahydrate - Physico-chemical Properties
| Molecular Formula | Al2H36O30S3 |
| Molar Mass | 666.43 |
| Density | 1,69 g/cm3 |
| Melting Point | 86 °C |
| Boling Point | 330°C at 760 mmHg |
| Water Solubility | Soluble |
| Solubility | 364g/l |
| Vapor Presure | 3.35E-05mmHg at 25°C |
| Appearance | White powder |
| Specific Gravity | 1.69 |
| Color | White |
| PH | 2.5-4.0 (20g/l, H2O, 20℃) |
| Storage Condition | Sealed in dry,Room Temperature |
| Sensitive | moisture sensitive |
| MDL | MFCD00149136 |
| Physical and Chemical Properties | Colorless monoclinic crystal. melting point 86.5 ℃ relative density 1.69(17 ℃) solubility soluble in water, acid and alkali, insoluble in alcohol. The aqueous solution was acidic. |
| Use | Used for preparing aluminum tanning agents, tanning fur and white leather, or as a combination tanning agent. |
Aluminum sulfate octadecahydrate - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment Xn,Xi,N,Xn - |
| Risk Codes | R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R41 - Risk of serious damage to eyes R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 - Wear suitable gloves and eye/face protection S29 - Do not empty into drains. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| UN IDs | UN3260 - class 8 - PG 3 - RQ - Corrosive solid, acidic, inorganic, n.o.s., HI: all |
| WGK Germany | 1 |
| RTECS | WS5697000 |
| HS Code | 2833 22 00 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Aluminum sulfate octadecahydrate - Upstream Downstream Industry
Aluminum sulfate octadecahydrate - Introduction
It's sweet. Soluble in water, insoluble in alcohol. Gradually heat and melt, lose moisture at 250 ℃, and decompose when heated. It is stable in the air and weakes when the relative humidity is about 20%. The specific gravity was 1-69. Long-term storage in the air is easy to suck and agglomerate, the dehydration temperature is 86 · 5 ℃, soluble in water, acid and alkali, insoluble in alcohol, the aqueous solution is acidic, with acid and astringent taste. When heated to 530 ℃, the decomposition starts, and the decomposition ends at 860 ℃. The final product of the decomposition is r-Al2O3. During the hydrolysis process of high-purity aluminum sulfate, the intermediate product basic salt is first generated, and then aluminum hydroxide is generated
Last Update：2022-10-16 17:28:48
Aluminum sulfate octadecahydrate - Preparation method
Open Data Verified Data
Produced by pressurized reaction of bauxite and sulfuric acid. Alternatively, it can be obtained by decomposing alunite, kaolin, and raw materials containing alumina and silicon using sulfuric acid. Aluminum sulfate can also be prepared by adding aluminum hydroxide [Al (OH) 3] to sulfuric acid (H2SO4).
Last Update：2024-01-02 23:10:35
Aluminum sulfate octadecahydrate - Product Safety
Open Data Verified Data
Its dust has a certain irritant effect on the eyes and mucous membranes. Accidentally taking a large amount of aluminum sulfate can cause irritation to the mouth and stomach. Hot solution splashing onto the skin can cause burns. Pay attention to protection.
The first aid measures are as follows.
Skin contact: Remove contaminated clothing and rinse with running water.
Eye contact: Lift the eyelids, rinse with flowing water or physiological saline, and seek medical attention.
Inhalation: Remove from the scene to a place with fresh air. If breathing is difficult, administer oxygen and seek medical attention.
Ingestion: Drink plenty of warm water to induce vomiting.
Store in a cool and dry warehouse. The packaging should be intact and loaded securely during transportation. During transportation, it is necessary to ensure that the container does not leak, collapse, fall, or be damaged. It is strictly prohibited to mix and transport with oxidants, edible chemicals, etc. During transportation, it is necessary to prevent exposure to sunlight, rain, and high temperatures. The vehicle should be thoroughly cleaned after transportation.
Last Update：2023-12-06 11:41:52
Supplier List
Spot supply
Product Name: Patent alum Request for quotationCAS: 7784-31-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Patent alum Request for quotationCAS: 7784-31-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Multiple SpecificationsSpot supply
Product Name: Aluminium sulfate octadecahydrate Request for quotationCAS: 7784-31-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Wechat: +86 19849939632
Product Name: Patent alum Request for quotation
CAS: 7784-31-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 7784-31-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Aluminum sulfate octadecahydrate Visit Supplier Webpage Request for quotationCAS: 7784-31-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: Patent alum Request for quotationCAS: 7784-31-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Patent alum Request for quotationCAS: 7784-31-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Multiple SpecificationsSpot supply
Product Name: Aluminium sulfate octadecahydrate Request for quotationCAS: 7784-31-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Wechat: +86 19849939632
Product Name: Patent alum Request for quotation
CAS: 7784-31-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 7784-31-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Aluminum sulfate octadecahydrate Visit Supplier Webpage Request for quotationCAS: 7784-31-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History
Raw Materials for Aluminum sulfate octadecahydrate
Downstream Products for Aluminum sulfate octadecahydrate