Ammonium Chromium(III) Sulfate Dodecahydrate 98% Purity CAS 7788-98-9 High Purity Chrome Alum for Textile Dyeing, Leather Tanning, and Analytical Chem
TDS
7788-98-9
Reagent Grade
99%
qingdao
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25g/bottle, 100g/bottle, 500g/bottle, 1kg/bag
2026-09-11
3-(1-Naphthoyl)indole
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Product Description
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Seller Information
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DescriptionECHEMI Editorial ReferenceAmmonium chromate has an eye-catching appearance, appearing in the form of bright yellow crystals that shimmer with enticing light in the sun. Not only that, it also displays a vibrant yellow in solution, as if it were a continuation of the sun's light, giving a warm and lively feeling. Furthermore, when you approach it, you can also feel a unique ammonia smell, which reminds people of the common chemicals used in laboratories. The chemical formula of this compound is (NH4)2CrO4, which is like its identity card, uniquely and accurately identifying it. Its CAS number, also known as the chemical substance registration number, is 7788-98-9, which is a universal identifier used internationally, allowing chemists worldwide to find it accurately. From a chemical perspective, its molecular formula can be written as CrH2O4·2H3N, which is like its inner code, revealing its molecular structure. It has many nicknames because it has many chemical properties, and people have given it different names based on its different uses and characteristics. For example, it can be called the ammonium salt of potassium dichromate (H2CrO4) (1:2) because of its structure containing potassium dichromate; it can also be called the di-ammonium salt of potassium dichromate (H2CrO4), because its molecule contains two ammonium ions. It can also be called ammonium hexachromate, because the chromium element is in a hexavalent state; it can also be called neutral ammonium chromate, because its properties in solution are neutral; it can also be called ammonium chromate ((NH4)2CrO4), because its main component is ammonium and chromic acid; it can also be called di-ammonium chromate, because its molecule contains a chromic acid and two ammonium ions; it can also be called ammonium dichromate, because its structure contains chromic acid; it can also be called di-ammonium chromate ((NH4)2CrO4), because its main component is ammonium and chromic acid.Certificates
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TDS
Basic Info-
Product Name:
Ammonium chromate ((NH4)2CrO4)
Other Name:Chromic acid (H2CrO4),ammonium salt (1:2);Chromic acid (H2CrO4),diammonium salt;Ammonium chromate(VI);Ammonium chromate;Neutral ammonium chromate;Ammonium chromate ((NH4)2CrO4);Diammonium chromate;Chromic acid ammonium salt;Diammonium chromate ((NH4)2CrO4);50929-82-3
CAS No.:7788-98-9
Molecular Formula:CrH2O4.2H3N
InChIKeys:InChIKey=FEIXNIOTSKFSAZ-UHFFFAOYSA-L
Molecular Weight:152.07
Exact Mass:151.98900
EC Number:232-138-4
UNII:X7I33TTT6D
Categories:
Characteristics-
PSA:
81.08000
XLogP3:0.05660
Appearance:Yellow-orange Crystalline
Density:1.866 g/cm3
Melting Point:185 °C (decomp)
Water Solubility:soluble in water.Slightly soluble in liquid ammonia, acetone, methanol.Insoluble in ethanol.H2O: 1 M at 20 °C, clear, yellow
Toxicity:Reference value: peritoneal-rat LD50: 57 mg/kg; peritoneal-mouse LD50: 32 mg/kg
Flammability characteristics:High temperature produces toxic chromium oxide, nitrogen oxides and ammonia fumes
Hazard IdentificationClassification of the substance or mixture
Skin corrosion, Sub-category 1B
Skin sensitization, Category 1
Respiratory sensitization, Category 1
Carcinogenicity, Category 1B
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
GHS label elements, including precautionary statements
Pictogram(s)
Signal word Danger
Hazard statement(s) 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
H410 Very toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P284 [In case of inadequate ventilation] wear respiratory protection.
P203 Obtain, read and follow all safety instructions before use.
P273 Avoid release to the environment.
Response P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316 Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P333+P317 If skin irritation or rash occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately.
P318 IF exposed or concerned, get medical advice.
P391 Collect spillage.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
3-(1-Naphthoyl)indole
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Location:
RONGSHENG BEIYUANDAJIE 9, LICHENG DISTRICT,JINAN, SHANDONG CHINA
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Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance
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Year of Establishment:
2022
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Country Product Purchase Quantity Date Posted Post an enquiry for this product