• Molecular Formula: (C4H4N2O2)
  • Molecular Weight: 112.09
  • CAS No. 123-33-1
  • UN No: 3077
  • UN Packing Code :
  • Packing Group : II
  • Proper Shipping Name:
  • Flash Point : NA c
  • Marine Pollutant: NO
  • Solid/Liquid/Gas : Solid
  • EMS : NA
  • MPA Group : NA
  • IMO Class:


Sr. Characteristic Specifications
1 Description White crystalline powder
2 Melting range 299-301 deg C
4 Solubility in hot water faint turbidity
4 Loss on drying Not more than 1.0 %
4 Assay Not less than 99.0%
4 Ph 2.0 – 4.0


  • Industrial Application
  • Agriculture
  • Poultry


50 kg/ 25 kgs HDPE bags with heat-sealed and automatically stitched inner plastic liner


Section 1: Chemical Product and Company Identification

Product Name Maleic Hydrazide
Catalog Codes
CAS# 123-33-1
TSCA:TSCA 8(b) inventory Maleic Hydrazide
CI# Not available
Chemical Name 3,6-Dihydroxypyridazine
Chemical Formula C4H4N2O2

For non-emergency assistance, call 09765490787

Section 2: Composition and Information on Ingredients

Composition - -
Name CAS # % by Weight
Maleic Hydrazide 123-33-1 100

Toxicological Data on Ingredients : Maleic acid: ORAL (LD50): Acute: 708 mg/kg [Rat]. 2400 mg/kg [Mouse]. DERMAL (LD50): Acute: 1560 mg/kg [Rabbit]. DUST (LC50): Acute: >720 mg/m 1 hours [Rat].

Section 3:Hazards Identification

Potential Acute Health Effects: Very hazardous in case of skin contact (corrosive, irritant, permeator), of eye contact (irritant, corrosive), of ingestion, of inhalation. The amount of tissue damage depends on length of contact

Potential Chronic Health Effects : CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. TERATOGENIC EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. The substance may be toxic to mucous membranes, upper respiratory tract, skin, eyes. Repeated or prolonged exposure to the substance can produce target organs damage. Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can produce local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or lung damage.

Section 4 : First Aid Measures

Eye Contact Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention immediately.

Skin Contact: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used.Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.

Serious Skin Contact :Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical attention.

InhalationIf inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately.

Section 5: Fire and Explosion Data

Flammability of the Product: May be combustible at high temperature.

Products of Combustion: These products are carbon oxides (CO, CO2)

Fire Hazards in Presence of Various Substances:: Slightly flammable to flammable in presence of heat, of metals. Non-flammable in presence of shocks.

Explosion Hazards in Presence of Various Substances: Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in presence of static discharge: Not available. Slightly explosive in presence of heat.

Fire Fighting Media and Instructions:SMALL FIRE : Use DRY chemical powder.

LARGE FIRE: Use water spray, fog or foam. Do not use water jet.

Special Remarks on Fire Hazards: Contact with metals may evolve flammable hydrogen gas.

Special Remarks on Explosion Hazards: When heated, vapors may form explosive mixtures with air. Containers may explode when heat

Section 6 : Accidental Release Measures

Small Spill : Use appropriate tools to put the spilled solid in a convenient waste disposal container. If necessary: Neutralize the residue with a dilute solution of acetic acid.

Large Spill : Corrosive solid. Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to reduce vapours. Prevent entry into sewers, basements or confined areas; dike if needed. Call for assistance on disposal.

Section 7 : Handling and Storage

Precautions : Keep locked up.. Keep container dry. Keep away from heat. Keep away from sources of ignition. Empty containers pose afire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathedust. Never add water to this product. In case of insufficient ventilation, wear suitable respiratory equipment. If ingested,seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away fromincompatibles such as oxidizing agents, reducing agents, metals, alkalis.

Storage : Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 25°C (77°F).

Section 8 : Exposure Controls/Personal Protection

Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit.

Personal Protection :Splash goggles. Synthetic apron. Vapor and dust respirator. Be sure to use an approved/certified respirator or equivalent.Gloves.

Personal Protection in Case of a Large Spill : Splash goggles. Full suit. Vapor and dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handlingthis product.

Section 9 : Physical and Chemical Properties

Physical state and appearance Solid. (Powdered solid.)
Odour Acidulous (Slight.)
Taste Characteristic. Astringent. Repulsive
Molecular Weight 112.09 g/mole
Colour White
PH (1% soln/water) Not available
Boiling Point Not available
Melting Point 292 deg c
Critical Temperature Not Available
Specific Gravity 1.378 (Water = 1)
Vapour Pressure Not Available
Vapour Density Not Available
Volatility Not Available
Odour Threshold Not Available
Water/Oil Dist. Coeff The product is more soluble in water;
Dispersion Properties See solubility in water, Water soluble

Section 10 : Stability and Reactivity Data

Stability : The product is stable

Conditions of Instability : Excess heat (above 200 C), dust generation, incompatible materials, moisture.

Incompatibility with various substances : Reactive with oxidizing agents, reducing agents, metals, alkalis. Slightly reactive to reactive with moisture.

Special Remarks on Reactivity : Contact with metals may evolve flammable hydrogen gas. Maleic Acid releases acrid smoke and fumes when heated todecompositon.

Section 11: Toxicological Information

Routes of Entry : Absorbed through skin. Inhalation. Ingestion.

Toxicity to Animals : WARNING: THE LC50 VALUES HEREUNDER ARE ESTIMATED ON THE BASIS OF A 4-HOUR EXPOSURE. Acute oral toxicity (LD50): 708 mg/kg [Rat]. Acute dermal toxicity (LD50): 1560 mg/kg [Rabbit]. Acute toxicity of the dust (LC50): >720mg/m3 1 hours.

Chronic Effects on Humans : MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. May cause damage to the following organs: kidneys, lungs.

Other Toxic Effects on Humans : Very hazardous in case of ingestion, . Hazardous in case of skin contact (irritant), of inhalation (lung irritant). Slightlyhazardous in case of skin contact.

Section 12: Ecological Information

Ecotoxicity : Not available

Products of Biodegradation: : Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.

Toxicity of the Products of Biodegradation: : The products of degradation are less toxic than the product itself.

Section 13: Disposal Considerations

Waste Disposal : Waste must be disposed of in accordance with federal, state and local environmental control regulations.

Section 14: Transport Information

DOT Classification : Not available

Identification : Not available

Special Provisions for Transport : Not available

Section 15: Other Regulatory Information


Section 16: Other Information

References : Not available

Other Special Considerations : Not available

Created : 10/09/2015

Last Updated : 09/09/2017