Ammonium Chromate
- CAS Number
- 7788-98-9
- HSN Code
- 28415090
- Molecular Formula
- (NH4)2CrO4
- Catalogue Number
- AL0345
- Purity
- ≥ 98%
- Molecular Weight
- 152.07 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Ammonium chromate appears as a yellow crystalline solid. Density 1.866 g / cm3.
Also known as Ammonium dichromate, Ammonium chromate (VI).
- Catalogue No.
- AL0345
- CAS Number
- 7788-98-9
- Molecular Formula
- (NH4)2CrO4
- Molecular Weight
- 152.07 g/mol
- HSN Code
- 28415090
- Grade
- 98%
- Product Form
- Substance
Melting point: 185 °C (decomposes); Density: 1.866; Solubility: Solubility in water: 34.4% at 50 °C.
- Appearance
- Yellow crystals
- Shelf Life
- -
- Packaging
- Available in: 500 gm plastic bottle
- Storage
- Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Oxidizing hazardous materials.
1.1 — Product identifier
- Chemical Name
- Ammonium Chromate
- Catalogue No.
- AL0345
- Product form
- Substance
- CAS Number
- 7788-98-9
- EC Number
- 232-138-4
- Grade
- 98%
- EC Index Number
- Cr(IV)
- Chemical Formula
- (NH4)2CrO4
- HSN Code
- 28415090
- Synonyms
- Ammonium dichromate, Ammonium chromate (VI)
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, oxidizing agent
- 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; Skin Corr. 1B; Skin Sens. 1; Resp. Sens. 1; Carc. 1B; Aquatic Acute 1; Aquatic Chronic 1
- Classification source
- ECHA C&L Inventory via PubChem CID 24595 - 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, Health Hazard, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H272: May intensify fire; oxidizer; H314: Causes severe skin burns and eye damage; H317: May cause an allergic skin reaction; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled; H350: May cause cancer; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
- Precautionary statements
- P203, P210, P220, P233, P260, P261, P264, P271, P272, P273, P280, P284, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P318, P321, P333+P317, P342+P316, P362+P364, P363, P370+P378, P391, P403, P405, P501
2.3 — Other hazards
- Other hazards
- Known human carcinogen; may cause respiratory irritation.
3.1 — Substance
- Name
- Ammonium Chromate
- CAS No.
- 7788-98-9
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air.
- First-aid measures after skin contact
- Wash with soap and water.
- First-aid measures after eye contact
- Flush with water.
- First-aid measures after ingestion
- Dilute with water or milk.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- May cause irritation to skin, eyes, and respiratory tract. Prolonged exposure may lead to serious health 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
- Can explode when heated or shocked.
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. Wear appropriate protective equipment. Prevent entry into waterways, sewers, or confined areas.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Contain and collect spillage. Dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves and in a fume hood. Avoid contact with skin and eyes.
- 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
- Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Oxidizing hazardous materials.
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 ventilation is inadequate.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Yellow
- Odour
- Smells of ammmonia
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 185 °C (decomposes)
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- > 200 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.866
- Solubility
- Solubility in water: 34.4% at 50 °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
- Stable under recommended storage conditions. Reacts with strong acids and reducing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong acids, reducing agents, organic materials.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits toxic fumes of ammonia.
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if ingested or inhaled; may cause respiratory irritation.
- Skin corrosion/irritation
- H314: Causes severe skin burns and eye damage
- Serious eye damage/irritation
- Not classified (based on available data)
- 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
- Not classified (based on available data)
- Carcinogenicity
- H350: May cause cancer
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
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)
- 3085
- UN-No. (IMDG)
- 3085
- UN-No. (IATA)
- 3085
- UN-No. (ADN)
- 3085
- UN-No. (RID)
- 3085
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Ammonium Chromate
- Proper Shipping Name (IMDG)
- Ammonium Chromate
- Proper Shipping Name (IATA)
- Ammonium Chromate
- Proper Shipping Name (ADN)
- Ammonium Chromate
- Proper Shipping Name (RID)
- Ammonium Chromate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 5.1 (8)
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
This compound is used as an analytical reagent in chromate/dichromate chemistry and serves as an oxidizing agent in specific chemical syntheses.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL00109
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 152.07 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Yellow acicular Crystals | Yellow acicular Crystals |
| Assay | Min. 98% | 98.2% |
| Density | 1.91 g/mL at 25 °C(lit.) | 1.91g/mL |
| Solubility | Soluble in water | Passes Test |
The above product complies with LR grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% | ≥ 98% | m.p. 185 °C (decomposes) | ≤ 0.5% | ≤ 0.1% | None detected | Solubility in water: 34.4% at 50 °C |
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