1.Purpose
Ensure the safety, stability and reliability of hydrazine hydrate in the process of transportation, transshipment, storage, use, disposal, operation, etc.; Minimize unsafe, unprofessional and non-standard behaviors in the process of operation, and eliminate the loss of personnel and property caused by this and all kinds of accidents caused by it.
2.Scope
1) R&D, production and production management departments, environmental health and safety (EHS) related departments, and all departments and personnel involved in transportation, transshipment, storage, use, disposal, operation, and exposure to hydrazine hydrate;
2) Low concentration, diluted, reaction hydrazine hydrate (solution), waste hydrazine hydrate, and various mixture systems containing hydrazine hydrate components shall be implemented as appropriate.
3.References
SDS - Hydrazine Hydrate SDS;
GB T 17519-2013 Guidelines for the Preparation of Safety Data Sheets for Chemicals;
GB T16483-2008 Safety of Chemicals Technical Specification Content and Project Sequence;
EG T 3259-2012 Industrial hydrazine hydrate;
GB T 34696-2017 Technical Guidelines for the Collection of Waste Chemicals;
GB T 31190-2014 Technical Specification for the Collection of Laboratory Waste Chemicals;
GB T 15603-2022 General Rules for Warehouse Storage of Hazardous Chemicals;
AQ 3047-2013 Code for Safety Warning Signs in Chemical Workplaces;
GA T 972-2011 Hazard Classification of Chemicals and **
XF T 970-2011 Code of Action for Handling Hazardous Chemical Spillage Accidents;
and its updated and alternative versions.
4.Terminology
Hydrazine hydrate: including hydrazine hydrate raw material (80%), and hydrazine hydrate solution diluted with water;
5.Responsibilities and Requirements
1) The production department, management and other relevant departments and personnel involved in the use of hydrazine hydrate shall be responsible for the safe use of hydrazine hydrate in accordance with the requirements of this specification;
2) Personnel using hydrazine hydrate shall be trained and examined in accordance with this specification and relevant EHS management requirements before taking up their posts, and can only work after passing the examination;
3) The hydrazine hydrate use department and its managers and related personnel have the responsibility and obligation to use hydrazine hydrate carefully in strict accordance with this specification. And according to the actual production and use, at any time to summarize and report the problems, opinions and suggestions found, in order to continuously update and improve this specification.
6.Chemicals
1) Chinese name: hydrazine hydrate, alias hydrazine, hydrazine monohydrate, hydrazine monohydrate.
2) English name: hydrazing hydrater
3) CAS number: 7803-57-8;
7. Overview of hazards
7.1 Overview of emergencies
1) It is harmful to swallow, and it will be poisoned by contact. Causes severe** burns and eye damage. May cause **allergies. Inhalation can cause lesions, and severe inhalation may be fatal;
2) It is extremely toxic to aquatic organisms and has long-term and sustained effects;
3) Rescuers need to protect themselves. Present this specification or the "Chemical Safety Exclusion Instructions - Hydrazine Hydrate SDS" referenced in this specification to the doctor present
4) Inhalation: move the injured person to a place with fresh air, seek medical attention immediately, and if the breathing stops, immediately implement mechanical respiration, and if possible, oxygen is administered;
5) In case of **contact: Remove immediately Remove all soiled clothing, wash with water ** or shower. If it is severe, call a doctor immediately, and if there are no symptoms, you should also seek medical attention in time afterwards;
6) After eye contact: Wash off with a large amount of water, immediately contact the eye doctor, and remove the ** glasses.
7) Swallowing: Call the emergency center immediately. If the injured person is conscious, drink water, and if the injured person is unconscious, do not feed it; Prohibition of vomiting;
8) Flammable, ignition may release nitrogen oxides and other harmful gases or vapors. Under sharp heating, it forms a mixture with air with excellent properties;
9) The vapor density is greater than that of air, which spreads to the ground, and may enter the underground operation space and cause harm.
10) Strong alkali, strong reducing agent.
7.2 Hazard Categories
1) Flammable liquids: Category 4
2) Acute toxicity - oral: category 4;
3) Acute toxicity a**Category 3:
4) Acute toxicity - inhalation: category 2
5)**Corrosion irritation category 3
6) *Sensitization: Category 1
7) Eye Injury Eye irritation: Category 1;
8) Pathogenicity: Category 1b;
9) Acute toxicity to the aquatic environment; Category 1:
10) Chronic toxicity to the aquatic environment; Category 1:
8.First aid measures
1)**Contact, inhalation, accidental ingestion, refer to 71;
2) All on-site temporary emergency treatment cannot replace medical professional treatment, and medical treatment should be sought or sent to the hospital immediately after emergency treatment. Even if you are asymptomatic or mildly symptomatic, you should see a doctor as soon as possible afterwards;
3) Take off all contaminated clothing, and clean up the contaminated clothing and clothing before reuse;
4) The on-site rescuer must wear protective gloves and eye masks, and wear respiratory protectors and gas masks when necessary, especially when the scene is filled with inhalable chemicals such as aerosolized hydrated acid mist;
5) It should be rescued by professionals or professionally trained personnel with hydrazine hydrate emergency response capabilities; If you are a non-professional emergency rescuer, you should contact and obtain guidance from a professional or institution.
9.Fire protection measures
1) Toxic fumes may be released when burned. When exposed to fire, irritating, toxic or corrosive gases can be generated. In case of heat and heating, the container may**. Heated vessels may leak through a pressure relief valve to release hydrate or its vapors;
2) Expansion or decomposition may occur when exposed to heat or contact with flames;
3) Suitable fire extinguishing agents include dry powder, carbon dioxide or alcohol-resistant foam, etc. Atomized water can be used to absorb the vaporized hydrazine hydrate and cool the total amount of rescue to avoid the scattering and spreading of human flames;
4) Firefighters must wear anti-permeation, alkali-resistant or chemical firefighting clothing, and wear filtering air respirators. Move the incident device to an open area as far as possible, and extinguish the fire with sufficient protection from a safe distance;
5) Prevent water pollution of the surface and groundwater with fire water;
6) In case of hydrazine hydrate fire, the police should be reported immediately and at the same time to the EHS and other supervisors.
10.Emergency response to leakage.
1) Demarcate the warning area according to the influence area of liquid flow and vapor diffusion, and evacuate unrelated personnel to a safe area from the crosswind and upwind direction as soon as possible. Rescue personnel should also enter the rescue site from the upwind or crosswind direction as much as possible, and the rescue operation site must be fully ventilated;
2) Rescue operators must wear filtering respirators or positive pressure self-contained respirators, anti-penetration, anti-electrostatic chemical protective clothing and protective equipment, and avoid inhaling hydrated wax, smoke, gas and dust;
3) Take measures to prevent further leakage and spillage and spread to the surrounding environment under the condition of ensuring safety. Whenever possible, shut down the source of the leak first;
4) Under the condition of ensuring safety, use tools and explosion-proof equipment that prevent static sparks to remove all fire sources as much as possible.
5) When a small amount of leakage, it can be absorbed by dry sand or porous materials, and the attachments or collections should be stored in a suitable airtight container first, and then cleaned up according to the actual situation and relevant local regulations;
6) In the event of a large amount of leakage, a cofferdam should be constructed with dry sand, soil, cement and other non-combustible materials or a pit should be dug on the spot for collection. If possible, immediately transfer the alkali corrosion-resistant pump to the tanker for transporting hydrazine hydrate and the container suitable for temporary storage, during which all possible efforts should be made to avoid volatilization, atomization and vaporization of hydrazine hydrate;
7) Try to cover and avoid the surrounding wellheads, pipeline trenches, etc., to avoid flowing in and causing secondary damage;
8) The first discoverer should immediately report to the supervisor, EHS, or security personnel. In case of an emergency such as a large or destructive leak, immediately call the fire. If there is any person poisoned or unconscious, you should call the emergency center immediately;
9) If the first discoverer is not a professional, he is not allowed to dispose of it without professional guidance and permission. In this case, it should be moved to a slightly upwind position as much as possible to observe and report at any time.
11.Operational disposal and handling
1) Mechanized and automated operation as much as possible, and minimize manual operation of hydrazine hydrate by personnel;
2) Unrelated personnel shall not enter the operation area and tank area, and shall not use hydrazine hydrate;
3) Keep away from heat sources, open flames and high-temperature surfaces, and take anti-static accumulation measures and explosion-proof electrical appliances at the same time;
4) It should be lightly loaded and unloaded, handled lightly, and implemented steadily, and strictly prevented from jumping, damaging the packaging, damaging the operating tools and storage tanks;
5) The storage and transfer process must be strictly sealed to prevent leakage, volatilization, waterproof hydrazine hygroscopic absorption and absorption of carbon dioxide in the air and other deterioration and failure;
6) The ventilation valve should be opened during dilution, batching, mixing, transfer and reaction operations, and ventilation should be provided at any time. When necessary and conditional, an absorption device should be installed at the exhaust outlet to avoid the exhaust gas containing hydrazine hydrate from being discharged;
7) When diluting, hydrazine hydrate should be slowly added to the water under the condition of stirring, and always pay attention to the change of water temperature to prevent boiling, splashing and shocking;
8) The storage tank, transportation, and operation areas should avoid sewers, wiring ditches (slots), staircases, wellheads, pipe mouths, etc., as well as the places where leaked hydrazine hydrate can flow into.
9) Before loading, unloading, transportation, transshipment and transportation, the tightness and reliability of all related devices, equipment (vehicles), pumps, valves, connecting pipelines, etc., should be checked to eliminate potential leakage and other hidden dangers;
10) The tank area, transportation route and operation area should be equipped with a sufficient number of fire-fighting equipment and emergency treatment equipment and materials that can be used for emergency treatment;
11) An emergency discharge pit (tank) should be set up in a suitable place below or near the reactor, and corresponding protective measures such as anti-leakage, anti-strong alkali, and anti-corrosion should be taken to prepare for emergency discharge under abnormal conditions;
12) Hydrazine hydrate storage tanks and other major equipment should be labeled on the surface or in conspicuous places around them, and emergency response methods and procedures such as leakage should be posted or stored nearby;
13) According to this specification, combined with the actual production of the accident emergency response measures or emergency operation instructions, the designation of on-site responsible persons and contacts, in case of emergencies and emergencies.
12.Exposure control Personal protection
1) The workplace should be kept in a well-ventilated place, wear personal protective equipment when necessary, and prohibit the use of hydration traps without any protective measures;
2) Contaminated work clothes shall not be taken out of the workplace, so as not to be released into the environment or cause other production injuries;
3) No direct contact with the eyes, no inhalation, no ingestion. Smoking and eating are strictly prohibited in the workplace, and contact parts and exposed parts should be cleaned in time after operation;
4) It is strictly forbidden to work after drinking, and it is not allowed to leave the post, string up and change the post without permission. Unsafe clothing such as slippers and tank tops is strictly prohibited.
5) The principle requires that in the production process, there should be more than two people at the hydrazine hydrate operation site to protect and supervise each other;
6) When running barrels, tanks and containers containing hydrazine hydrate, they should be lowered as much as possible, and it is not allowed to go over the shoulder, and it is strictly forbidden to lift it above the head;
7) During pregnancy and lactation, contact and operation of hydrazine hydrate should be avoided as much as possible;
8) The workplace should be equipped with tap water faucets or other forms of water sources that can be used for flushing in case of emergency. A certain amount of medical baking soda and other first-aid medicines, supplies, and utensils should be on hand.
13.Physicochemical properties and reactivity
13.1 Physical and chemical properties
appearance and traits; The pure product is a colorless and smoky, with a faint ammonia-like smell;
Freezing point Melting Point: -60 ;
Density (98% concentration): 103g/cm'(20℃)；
Initial boiling point, boiling range: 117-119 ;
Decomposition temperature: > 250 °C;
Saturation vapor pressure (20): 13pa ;
Flash Point: 91 (closed);
Flammability: flammable;
Water solubility: soluble;
*Upper limit: >99% (v) in terms of pure substance;
* Lower limit: 47% (v) in terms of pure substance.
13.2 Stability and reactivity
1) There is a danger of ** in distillation.
2) It can erode glass, leather and cork;
3) Exothermic reaction with it: exothermic reaction will occur in the case of oxidants, metals, metal oxides, halogens, acids, organic matter, nitro compounds, and strong bases;
4) Alkali metals, sodium, mercury, tin (II) and chlorination, 5) with which it can react violently; metals, metal oxides, metal chlorides, halogens, acids, oxidants, organic nitrides, heavy metal salts;
6) Conditions to be avoided: strong heating (decomposition).
7) Prohibited substances: glass, rubber, and a variety of metals.
8) Decomposition produces harmful gases.
14.Toxicological and ecological information
1) Acute toxicity estimates, oral: 3275ng/kg.Symptoms: Swallowing can severely burn the mouth and throat and pose a risk of stomach perforation. LD50 oral male rats 262mg kg;
2) Acute toxicity estimates, inhaling; 0.95mg1 (anhydrous) 4hrs. Symptoms: mucosal irritation, cough, shortness of breath, possible disruption of the respiratory tract. L050 sucks human male rat 076mg1 (anhydrous), 4hrs;
3) Acute toxicity estimate percutaneous: 375mg kg;
4) Severe burns and eye damage caused by irritation or corrosion;
5) Severe eye damage caused by eye irritation or corrosion;
6) Respiratory or **sensitization: may cause **allergic reactions;
7) It is polluting and harmful to the water body, and direct discharge is not allowed;
No other data or information is available.
15.Inbound, outbound and storage
1) Store in a dry, cool, well-ventilated place and keep the container tightly closed. Valid storage period of one year;
2) Strictly register the amount of warehousing and inventory regularly. Safe storage, locked and kept by a special person;
3) Try to use small inventory;
4) should be stored separately and with flammable, flammable and reducing materials and materials that can react strongly with hydrazine hydrate (see 132) Isolation. When stored in the open air, in order to facilitate handling, it is not advisable to stack too high. Tighten the lid of the barrel, the empty barrel cannot be mixed with the heavy barrel;
5) Storage should be in a packaging barrel or storage tank that can withstand strong alkali and is dull to hydrazine hydrate;
6) After entering the factory, it must be tested by laboratory testing and qualified, and the weight must be in line with the purchase plan before unloading. Those who fail to meet the requirements of concentration and purity will be rejected;
7) Vehicles transporting hydrazine hydrate should stop for inspection and troubleshooting before entering the factory to ensure safe and reliable driving, loading and unloading after entering the factory. After entering the factory, you should take a fixed safety route, stop and unload, and do not allow to stay for no reason. If you do need to stay, you should stay in a designated safe area. The transportation and transshipment in the factory should also take a fixed safety route;
8) Under the premise of convenient transportation and transshipment when conditions permit, a cofferdam of a certain height is set around the storage tank, or a storage tank is placed in a semi-storage lower than the ground;
9) Adopt explosion-proof lighting and other electrical appliances, set up ventilation devices, and use tools that do not generate sparks.
16.Disposal
1) If you need to seek medical treatment, carry the product label and display this specification for the doctor's reference;
2) Unclean packaging, empty containers, etc. may still have the residue of hydration tillage, and should be kept away from fire. Try to return to the manufacturer for recycling, or dispose of it in accordance with relevant national and local regulations;
17.Regulatory Information
List of Hazardous Chemicals" listed in 82. Others have not been found to be included yet.
18.Other.
Matters not covered herein shall be implemented with reference to national laws and regulations and relevant regulations of the company.
Disclaimer] This ** does not make any technical and legal basis, and the user of the manuscript is at his own risk.