Ammonium Bichromate
- CAS Number
- 7789-09-5
- HSN Code
- 28415090
- Molecular Formula
- (NH4)2Cr2O7
- Catalogue Number
- AL0325
- Purity
- ≥ 99%
- Molecular Weight
- 252.06 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Ammonium dichromate is a bright orange red crystalline solid. It is readily ignited and burns producing a voluminous green residue.
Also known as Dichromate of Ammonium.
- Catalogue No.
- AL0325
- CAS Number
- 7789-09-5
- Molecular Formula
- (NH4)2Cr2O7
- Molecular Weight
- 252.06 g/mol
- HSN Code
- 28415090
- Grade
- 99%
- Product Form
- Substance
Melting point: Decomposes 180 °C; Density: 2.155 g/cu cm at 25 °C; Solubility: 35.6 g/100 g water at 20 °C.
- Appearance
- Bright orange-red monoclinic prisms
- Shelf Life
- -
- Packaging
- Available in: 500 gm plastic bottle, 5 Kg plastic bottle
- Storage
- Fireproof. Provision to contain effluent from fire extinguishing. Separated from organic solvents, combustible substances and reducing agents. Well closed. Store in an area without drain or sewer access.
1.1 — Product identifier
- Chemical Name
- Ammonium Bichromate
- Catalogue No.
- AL0325
- Product form
- Substance
- CAS Number
- 7789-09-5
- EC Number
- 232-143-1
- Grade
- 99%
- EC Index Number
- Cr(IV)
- Chemical Formula
- (NH4)2Cr2O7
- HSN Code
- 28415090
- Synonyms
- Dichromate of Ammonium
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Strong oxidizing agent, used in pyrotechnics and photography.
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Ox. Sol. 2; Acute Tox. 3; Acute Tox. 4; Skin Corr. 1B; Skin Sens. 1; Eye Dam. 1; Acute Tox. 2; Resp. Sens. 1; Muta. 1B; Carc. 1B; Repr. 1B; STOT RE 1; Aquatic Acute 1; Aquatic Chronic 1
- Classification source
- ECHA C&L Inventory via PubChem CID 24600 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Oxidizer, Corrosive, Acute Toxic, Health Hazard, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H272: May intensify fire; oxidizer; H301: Toxic if swallowed; H312: Harmful in contact with skin; H314: Causes severe skin burns and eye damage; H317: May cause an allergic skin reaction; H318: Causes serious eye damage; H330: Fatal if inhaled; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled; H340: May cause genetic defects; H350: May cause cancer; H360FD: May damage fertility; May damage the unborn child; H372: Causes damage to organs through prolonged or repeated exposure; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
2.3 — Other hazards
- Other hazards
- Known human carcinogen; may cause respiratory irritation.
3.1 — Substance
- Name
- Ammonium Bichromate
- CAS No.
- 7789-09-5
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Remove to clean air and summon medical attention.
- First-aid measures after skin contact
- Flush with water; if skin irritation develops, get medical attention.
- First-aid measures after eye contact
- Immediately flush with water for at least 15 min. and consult a physician.
- First-aid measures after ingestion
- Vomiting should occur; follow with an emetic of soapy water; give large amounts of water.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of the respiratory tract, skin, and eyes; potential carcinogenic effects.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- May cause fire and explosion; strong oxidizer.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Evacuate area and ventilate. Avoid dust generation.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: complete protective clothing including self-contained breathing apparatus. Sweep spilled substance into covered non-combustible containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves in a fume hood; avoid inhalation and contact with skin.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Fireproof. Provision to contain effluent from fire extinguishing. Separated from organic solvents, combustible substances and reducing agents. Well closed. Store in an area without drain or sewer access.
8.2 — Exposure controls
- Hand protection
- Handle with gloves.
- Eye protection
- Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Bright orange
- Odour
- Odorless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- Decomposes 180 °C
- Freezing point
- Not applicable
- Boiling point
- 100 °C (decomposes)
- Flash point
- Not applicable
- Auto-ignition temperature
- 225 °C
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.155 g/cu cm at 25 °C
- Solubility
- 35.6 g/100 g water at 20 °C
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Strong oxidizer
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Reacts violently with reducing agents and organic materials.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- May explode on heating. The substance is a strong oxidant. It reacts with combustible and reducing materials.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Reducing agents, organic materials, and acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 rat intravenous 30 mg/kg
- Skin corrosion/irritation
- H314: Causes severe skin burns and eye damage
- Serious eye damage/irritation
- H318: Causes serious eye damage
- Respiratory or skin sensitisation
- H317: May cause an allergic skin reaction; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled
- Germ cell mutagenicity
- H340: May cause genetic defects
- Carcinogenicity
- H350: May cause cancer
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- H372: Causes damage to organs through prolonged or repeated exposure
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- 1439
- UN-No. (IMDG)
- 1439
- UN-No. (IATA)
- 1439
- UN-No. (ADN)
- 1439
- UN-No. (RID)
- 1439
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Ammonium Bichromate
- Proper Shipping Name (IMDG)
- Ammonium Bichromate
- Proper Shipping Name (IATA)
- Ammonium Bichromate
- Proper Shipping Name (ADN)
- Ammonium Bichromate
- Proper Shipping Name (RID)
- Ammonium Bichromate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 5.1
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Used as a strong oxidizing agent in chemical demonstrations and as a mordant in historical photographic/printing processes. It is also utilized in the preparation of chromium compounds.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL00099
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 252.06 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 99% | 99.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Soluble in water | Soluble in water |
The above product is expected to comply with 99% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 99% | ≥ 99% | m.p. Decomposes 180 °C | ≤ 0.5% | ≤ 0.1% | None detected | 35.6 g/100 g water at 20 °C |
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