English name of chemical: ferrous sulfate
English name 2: copperas
English Name 2: Alum
Technical specification code: 2536
CAS number: 7782-63-0
Molecular formula: ferrous sulfate
The molecular formula of ferrous sulfate crystal: FeSO 4·7H2O (also known as copperas).
Molecular weight: 278.05
Product standard: GB 1053 1-89[ Edit this paragraph] Part II: Composition/ingredient information, hazardous substance composition, CAS number.
Ferrous sulfate 7782-63-0[ edit this paragraph] Part III: Hazard overview Hazard categories:
Invasion route:
Health hazards: irritation to respiratory tract, cough and shortness of breath caused by inhalation. Irritating to eyes, skin and mucous membrane. Incorrect intake can lead to weakness, abdominal pain, nausea, bloody stool, lung and liver damage, shock, coma and so on. It can be fatal in severe cases.
Environmental hazards: harmful to the environment and can pollute water bodies.
Danger of explosion: This product is nonflammable and irritating. [Edit this paragraph] Part IV: First-aid measures Skin contact: Take off contaminated clothes and rinse them with plenty of running water.
Eye contact: Lift eyelids and rinse with running water or normal saline. See a doctor.
Inhalation: leave the scene quickly and go to a place with fresh air. Keep the respiratory tract unobstructed. If you have difficulty breathing, give oxygen. If breathing stops, give artificial respiration immediately. See a doctor.
Intake: rinse your mouth with water and give milk or egg white. See a doctor as soon as possible. [Edit this paragraph] Part V: Hazard characteristics of fire control measures: reducible. High temperature decomposes and releases toxic gases.
Harmful combustion products: sulfur oxide.
Fire extinguishing method: Firefighters must wear full-body fire-proof and gas-proof clothing to extinguish the fire in the upwind direction. When putting out the fire, move the container from the fire to an open place as much as possible. Then choose the appropriate fire extinguishing agent according to the cause of the fire. [Edit this paragraph] Part VI: Emergency response to leakage: isolate the leaked contaminated area and restrict access. It is recommended that emergency personnel wear dust masks and ordinary work clothes. Don't touch the leak directly. Small amount of leakage: avoid dust, carefully clean and collect in a dry, clean and covered container. Large amount of leakage: collected and recycled or transported to waste disposal site for treatment. [Edit this paragraph] Part VII: Precautions for operation, disposal and storage: closed operation and local ventilation. Prevent dust from being released into the air of the workshop. Operators must be specially trained and strictly abide by the operating procedures. Operators are advised to wear self-priming filter dust mask, chemical safety glasses, rubber acid and alkali resistant clothes and rubber acid alkali resistant gloves. Avoid dust. Avoid contact with oxidants and alkalis. Equipped with leakage emergency treatment equipment. Empty containers may leave harmful substances behind.
Precautions for storage: Store in a cool and ventilated warehouse. Stay away from fire and heat sources. Avoid direct sunlight. The packing must be sealed and moisture-proof. Should be stored separately from oxidant, alkali, etc. , and should not be mixed. The storage area should be equipped with suitable materials to control leakage. It is easily oxidized in air, so it must be used in experiments. [Edit this paragraph] Part VIII: Contact Control/Personal Protection occupational exposure limits
China MAC(mg/m3): No standard has been established.
Maximum allowable concentration in the former Soviet Union (mg/m3): 2
TLV TN: 1 mg (iron)/m3
TLVWN: No standard has been established.
Monitoring method:
Engineering control: closed operation, local exhaust.
Respiratory system protection: when the dust concentration in the air exceeds the standard, you must wear a self-priming filter dust mask. Air respirator should be worn during emergency rescue or evacuation.
Eye protection: Wear chemical safety glasses.
Physical protection: Wear rubber acid and alkali resistant clothes.
Hand protection: Wear rubber acid alkali resistant gloves.
Other protection: Smoking and eating are prohibited in the workplace, and hands are washed before meals. Take a shower and change clothes after work. Maintain good hygiene habits. [Edit this paragraph] Part IX: Main components of physical and chemical properties:
Appearance and properties: light blue-green monoclinic crystal or powder.
Acidity: acidity
Ph: No data.
Specific gravity: 1.899 (14.8)
Melting point (℃): 64 (-6H2O)
Boiling point (℃): No data available.
Relative density (water =1):1.897 (15℃)
Relative steam density (air = 1): No data available.
Saturated vapor pressure (kPa): No data available.
Combustion heat (kJ/mol): meaningless.
Critical temperature (℃): meaningless
Critical pressure (MPa): meaningless
Logarithmic value of octanol/water partition coefficient: No data available.
Flash point (℃): meaningless
Ignition temperature (℃): meaningless
Upper explosive limit %(V/V): meaningless.
Lower explosive limit %(V/V): meaningless.
Solubility: Soluble in water and glycerol, almost insoluble in ethanol. It has a reducing effect.
Related data: 90 lost six molecules of crystal water, 300 lost all crystal water. Weathered gradually in the air and oxidized to yellow brown.
Anhydrous substance is a white powder with a specific gravity of 3.4, which reacts with water and turns blue-green again.
Main uses: used as water purifier, gas purifier, mordant, herbicide, ink and pigment. , used as a blood-enriching drug in medicine.
Other physical and chemical properties: high temperature decomposition 2feso47h2o = = high temperature = = Fe2O3+SO2 =+SO3 =+14h2o [edit this paragraph] Part X: Stability and reactivity stability:
Prohibited compounds: strong oxidant, humid air, strong alkali.
Conditions to avoid contact: light.
Aggregation danger:
Decomposition products: (high temperature) SO2(g), SO3(g)[ edit this paragraph] Part XI: Toxicological data Acute toxicity: LD50: 1520 mg/kg (by mouth in mice).
LC50: No data.
Subacute and chronic toxicity:
Irritant:
Sensitization:
Mutagenicity:
Teratogenicity:
Carcinogenicity: [Edit this paragraph] Part XII: Eco-toxicological toxicity of ecological data;
Biodegradability:
Non-biodegradable:
Bioaccumulation or bioaccumulation:
Other harmful effects: the substance is harmful to the environment, so special attention should be paid to the pollution of water bodies. [Edit this paragraph] Part XIII: Nature of waste disposal:
Waste disposal method: safe burial. Reuse containers where they can be used, or bury them in designated places.
Precautions for abandonment: [Edit this paragraph] Part XIV: Transport information Dangerous goodsNo.: No information.
UN number: No information available.
Packaging mark:
Packaging category:
Packing method: No data.
Precautions for transportation: the packaging should be complete and the loading should be safe. Ensure that the container will not leak, collapse, fall or be damaged during transportation. It is strictly prohibited to transport with oxidants, alkalis and edible chemicals. Exposure, rain and high temperature should be prevented during transportation. The vehicle should be thoroughly cleaned after transportation. Highway transportation should follow the prescribed route. [Edit this paragraph] Part XV: Regulations on the Safety Management of Hazardous Chemicals (1February 1987 17 the State Council), Detailed Rules for the Implementation of the Regulations on the Safety Management of Hazardous Chemicals (Hua Laofa [1992] No.677) and Provisions on the Safe Use of Chemicals in Workplaces (/kloc-). [Edit this paragraph] Part XVI: FeSO4 flower fertilizer 1. Performance characteristics: adjust soil pH, promote chlorophyll formation (also known as iron fertilizer), and prevent flowers and trees from yellowing due to iron deficiency. It is an indispensable element for acid-loving flowers and trees, especially cycads.
2, usage and dosage and control object
(1) Usage: ①, 10g is mixed with 4 ~ 5kg of water and sprayed on the leaves. ② Normal growth period, 1 ~ 2 times a month. ③ During disease prevention, 10 ~ 15 once a day, 2 ~ 3 times in a row.
(2) Dosage: 10g mixed with 7 ~ 9kg of water, and the pot soil is poured once every 20 days.
(3) Prevention and control of diseases and principles:
Indications (yellowing). The main manifestations are as follows: on the young leaves, mesophyll begins to turn yellow, and brown spots appear on both sides, middle or top of the back leaves; As time goes on, the leaves fall off.
Principle: Adjusting soil pH is beneficial to the normal growth of acid-loving flowers and trees.
3. Suitable plants: all kinds of acid-loving flowers and trees, such as cycads, rhododendrons, camellia, Milan, chlorophytum, asparagus with ferrous sulfate fertilizer, Prynne, poinsettia, conifers, jasmine, ferns, palms and various potted flowers and trees. Because the soil is mostly "alkali from the south to the north", ferrous sulfate is often used to adjust the landscape plants native to the south when they are transplanted to the north.
4. Note: Don't overuse it. If the seedlings burn due to overuse, please use the following methods ↓
(1) If spraying: spray water repeatedly on the front and back of the leaves for several times.
(2) Root irrigation: irrigate the basin soil with clear water several times.
Typing is not easy. If you are satisfied, please adopt it.