Propellants EHS

Please select a product to view the appropriate Responsible Care information:

Arch Ultra Pure™ Hydrazine
The experience accumulated by the chemical and aerospace industries indicates that with rigid adherence to proper precautions, Arch Ultra Pure™ Hydrazine can be handled safely. Because hydrazine vapors have an upper explosive limit of 100% and because hydrazine liquid is extremely reactive with many materials, the safety precautions outlined below are necessary to avoid fire or explosions. In addition, prolonged exposure to hydrazine vapor, contact with skin, or ingestion may produce harmful or fatal effects.

Storage
Outside or detached storage is preferred. If kept inside, use a well-ventilated standard flammable liquid storage room or cabinet. Tanks should be located in a diked area. Store away from heat, sparks, open flame and oxidants. Do not contaminate.

Arch Ultra Pure™ Hydrazine may be stored in the DOT approved container in which it is shipped. Because Arch Ultra Pure™ Hydrazine is hygroscopic, a nitrogen purge must be maintained on open containers to prevent exposure to atmospheric moisture and carbon dioxide.

Since Arch Ultra Pure™ Hydrazine is stable, it can be stored without loss of purity. Keep the container securely closed. Carefully vent the container when opening.

Safety Precautions
Arch Ultra Pure™ Hydrazine is insensitive to shock or friction. But both hydrazine and its vapor can be flammable or explosive in the presence of heat, flame, sparks, contaminants, and oxidizers, including air.

Shipping Information
Arch Ultra Pure™ Hydrazine is available in 55-gallon (420 lbs net) non-returnable steel drums. Drums meet DOT specification 1A1/X and are constructed of 304 stainless steel containing less than 0.5% molybdenum. Arch Ultra Pure™ Hydrazine can also be supplied in customer-provided pressure cylinders.

Emergency Information
For Arch Ultra Pure™ Hydrazine emergency information, click here.

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Monomethyl Hydrazine (MMH) 
The experience accumulated by the chemical and aerospace industries indicates that with rigid adherence to proper precautions, monomethyl hydrazine can be handled safely. Because monomethyl hydrazine vapors have such a very wide range of explosive limits and because monomethyl hydrazine liquid is extremely reactive with many materials, the safety precautions outlines are necessary to avoid fire or explosions. In addition, prolonged exposure to monomethyl hydrazine vapor contact with skin, or ingestion may produce harmful or fatal effects.

Storage
Monomethyl hydrazine may be stored in the DOT approved container in which it is shipped (see Shipping Information below) Store away from heat, sparks, open flame and oxidants. Store only in well ventilated areas. Do not contaminate.

Since monomethyl hydrazine is stable, it can be stored without loss of purity. Keep the container securely closed. Drums should be vented carefully when opening.

If you wish to receive information on bulk storage, Arch Technical Service is available to assist you.

Safety Precautions
Monomethyl hydrazine is insensitive to shock or friction. But both monomethyl hydrazine and its vapor can be flammable or explosive in the presence of heat, flame, sparks, contaminants and oxidizers, including air.

All containers and handling equipment for monomethyl hydrazine should be electrically grounded. And because of the rapid rate of oxidation, which may lead to fire of explosion, an inert atmosphere is necessary over monomethyl hydrazine at all times.

Nitrogen, which is inert and readily available, has been adopted as the padding material for monomethyl hydrazine storage and transfer. The lower explosive limit for monomethyl hydrazine vapor in air is 2.5% This value increases significantly when a nitrogen atmosphere is used.

Avoid contact between monomethyl hydrazine and strong oxidizers such as hydrogen peroxide, nitrogen tetroxide, fluorine, halogen fluorides and fuming nitric acid. Such contact will result in immediate ignition.

Avoid contact with metal oxides such as those of iron, copper, lead, manganese and molybdenum. Contact with such metallic oxide surfaces may lead to flaming decomposition. Avoid contact with organic materials having large surface areas, or porous surfaces. Absorption of monomethyl hydrazine by rags, cotton waste, sawdust or similar organic materials will eventually result in spontaneous ignition.

Shipping Information
Arch Monomethyl Hydrazine is available in 30-gallon drums (215 lbs net) packed with a capseal and an approved overpack. These drums meet DOT Specification 1A1/X and are constructed of 304 stainless steel containing less than 0.5% molybdenum. Arch Monomethyl Hydrazine can also be supplied in customer-provided pressure cylinders.

Emergency Information
For Arch Monomethyl Hydrazine emergency information, click here.

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Unsymmetrical Dimethydrazine (UDMH)
The experience accumulated by the chemical and aerospace industries indicates that with rigid adherence to proper precautions, UDMH can be handled safely. Because UDMH vapors have such a very wide range of explosive limits and because UDMH liquid is extremely reactive with many materials, the safety precautions outlined are necessary to avoid fire or explosions. In addition, prolonged exposure to UDMH vapor, contact with skin, or ingestion may produce harmful or fatal effects.

Storage
UDMH may be stored in the DOT-approved container in which it is shipped. (See Shipping Information below.) Store away from heat, sparks open flame and oxidants. Store only in well-ventilated areas. Do not contaminate.

Since UDMH is stable, it can be stored without loss of purity. Keep the container closed securely. Drums should be vented carefully when opening.

If you wish information on bulk storage, Arch Technical Service is available to assist you.

Safety Precautions
UDMH is insensitive to shock or friction. But, both UDMH and its vapor can be flammable or explosive in the presence of heat, flame, sparks, contaminants and oxidizers, including air.

All containers and handling equipment for UDMH should be electrically grounded. And because of the rapid rate of oxidation, which may lead to fire or explosion, an inert atmosphere is necessary over UDMH at all times.

Nitrogen, which is inert and readily available, has been adopted as the padding material for UDMH storage and transfer. The lower explosive limit for UDMH vapor in air is 2.0%. This value increases significantly when a nitrogen atmosphere is used.

Avoid contact between UDMH and strong oxidizers such as hydrogen peroxide, nitrogen tetroxide, fluorine, halogen fluorides and fuming nitric acid. Such contact will result in immediate ignition or explosion.

Avoid contact with metal oxides such as those of iron, copper, lead, manganese and molybdenum. Contact with such metallic oxide surfaces may lead to flaming decomposition. Avoid contact with organic materials having large surface areas, or porous surfaces. Absorption of UDMH by rags, cotton waste, sawdust or similar organic materials will eventually result in spontaneous ignition. For additional details on handling and use of UDMH, contact us online or find your local sales office.

Shipping Information
Arch UDMH is available in 55-gallon (335 lbs net) non-returnable drums. These drums meet DOT Specification 1A1X/ containing 304 stainless steel less than 0.5% molybdenum. Arch UDMH can also be supplied in customer-provided pressure cylinders.

Emergency Information
For Arch Unsymmetrical Dimethydrazine (UDMH) emergency information, click here 

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Anhydrous Hydrazine (AH)
The experience accumulated by the chemical and aerospace industries indicates that with rigid adherence to proper precautions, anhydrous hydrazine can be handled safely. Because anhydrous hydrazine vapors have no upper explosive limit and because anhydrous hydrazine liquid is extremely reactive with many materials, the safety precautions outlined are necessary to avoid fire or explosions. In addition, prolonged exposure to anhydrous hydrazine vapor, contact with skin, or ingestion may produce harmful or fatal effects.

Storage
Anhydrous hydrazine may be stored in the DOT-approved container in which it is shipped (See Shipping Information below.) Store away from heat, sparks, open flame and oxidants. Store only in well ventilated areas. Do not contaminate.

Since it is stable, it can be stored without loss of purity. Keep the container closed securely. Vent the drum carefully when opening. If you wish information on bulk storage, Arch Technical Service is available. Contact us online or find a local sales office.

Safety Precautions
Anhydrous hydrazine is insensitive to shock or friction. But both anhydrous hydrazine and its vapor can be flammable or explosive in the presence of heat, flame, sparks, contaminants and oxidizers including air.

All containers and handling equipment for anhydrous hydrazine should be electrically grounded. And because of the rapid rate of oxidation, which may lead to a fire or explosion, an inert atmosphere is necessary over anhydrous hydrazine at all times.

Nitrogen, which is inert and readily available, has been adopted as the padding material for anhydrous hydrazine storage and transfer. The lower explosive limit for anhydrous hydrazine vapor in air is 4.7%. This value increases significantly when a nitrogen atmosphere is used.

Avoid contact between anhydrous hydrazine and strong oxidizers such as hydrogen peroxide, nitrogen tetroxide, fluorine, halogen fluorides and fuming nitric acid. Such contact will result in immediate ignition or explosion.

Avoid contact with metal oxides such as those of iron, copper, lead, manganese and molybdenum. Contact with such metallic oxide surfaces may lead to flaming decomposition. Avoid contact with organic materials having large surface areas, or porous surfaces. Absorption of anhydrous hydrazine by rags, cotton waste, sawdust or similar organic materials will eventually result in spontaneous ignition.

Shipping Information
Arch Anhydrous Hydrazine is available in 30-gallon (240 lbs net) and 55-gallon (440 lbs net) stainless steel drums. Drums meet DOT Specification 1A1/X and are constructed of 304 stainless steel containing less than 0.5% molybdenum.

Emergency Information
For Arch Anhydrous Hydrazine (AH) emergency information, click here.

For additional information about Arch Propellants please contact us online, request an MSDS, or contact your local Arch sales office.

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H-70 
The experience accumulated by the chemical and aerospace industries indicates that with adherence to proper precautions, H-70 can be handled safely. Proper personal protective equipment (PPE) must be used when handling H-70. This should include gloves, face mask and an apron or suit made of the proper material. Neoprene, butyl or nitrile rubber and Tychem ® 1are acceptable. Ifhydrazine vapors are present, a supplied air breathing apparatus must be employed. Prolonged exposure to hydrazine vapor, contact with skin, or ingestion may produce harmful or fatal effects. Because hydrazine vapors have no upper explosive limit and because hydrazine liquid is extremely reactive with many materials, the safety precautions outlined are necessary to avoid fire or explosions.

Storage
H-70 may be stored in the DOT approved container in which it is shipped (See Shipping Information below). Store away from heat, sparks, open flame and oxidants, and only in well ventilated areas. Do not allow H-70 to become contaminated with foreign matter. Since it is stable, it can be stored without loss of purity as long as the container is closed securely. Vent the drums carefully when opening. H-70 is insensitive to shock or friction.

Both H-70 hydrazine and its vapor can be flammable or explosive in the presence of heat, flame, sparks, contaminants and oxidizers, including air. All containers and handling equipment for H-70 hydrazine should be electrically grounded. Nitrogen, which is inert and readily available, has been adopted as the padding material for H-70 hydrazine storage and transfer. The lower explosive limit for hydrazine vapor in air is 4.7%. This value increases significantly when a nitrogen atmosphere is used. Avoid contact between H-70 and strong oxidizers such as hydrogen peroxide, nitrogen tetroxide, halogens and nitric acid. Such contact may result in immediate ignition or explosion

Safety Precautions
Do not allow H-70 to come into contact with metal oxides such as those of iron, copper, lead, manganese and molybdenum. Contact with such metallic oxide surfaces may lead to flaming decomposition. Absorption of H-70 hydrazine by rags, cotton waste, sawdust or similar organic materials with large surface areas will eventually result in spontaneous ignition.

Shipping Information
H-70 hydrazine is available in 30-gal (240 lbs. net) and 55-gal (430 lbs. net) stainless steel drums. Drums meet DOT Specification 1A1/X and are constructed of 304 stainless steel containing less than 0.5% molybdenum. H-70 hydrazine can also be supplied in customer-provided pressure cylinders.

Emergency Information
For Arch P-70 emergency information, click here.

For additional information about Arch Propellants please contact us online, request an MSDS, or contact your local Arch sales office.

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