Key facts
What buyers check first
- Appearance
- Soft, yellow metal
- Melting point
- 1,065 °C
- Boiling point
- 2,700 °C
- Density
- 19.3
- Solubility
- INSOL IN WATER, ACID, SOL IN POTASSIUM CYANIDE, HOT SULFURIC ACID
- HS code
- 710812
- Category
- Metals, alloys and elements
What is Gold?
Plain description, key identifiers and synonyms
Gold(0) is an elemental gold.
Gold is a chemical element with symbol Au and atomic number 79, a dense, malleable, and corrosion-resistant precious metal widely used as currency, in jewelry, electronics, and as a financial reserve asset.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- gold
- CAS number
- 7440-57-5 CAS number cross-checked
- EC number
- 231-165-9
- Molecular formula
- Au
- UNII
- 79Y1949PYO
- MDL number
- MFCD00003436
- INCI name
- CI 77480, COLLOIDAL GOLD, GOLD
- InChIKey
- PCHJSUWPFVWCPO-UHFFFAOYSA-N
- InChI
- InChI=1S/Au
- SMILES (canonical and isomeric)
- [Au]
Synonyms
- Gold powder
- Colloidal gold
- Gold flake
- Gold leaf
- Gold, colloidal
- Gold, elemental
- Shell Gold
- Burnish gold
- Magnesium gold purple
- Aurum Metallicum
- CI 77480
- C.I. 77480
- AU
- Gold (e 175)
- INS NO.175
- Aurum Met
- NHS Insomnia
- Aurum 5
- Aurum 6
- Aurum 6X
- Aurum 8X
- Aurum Metallicum 6X
- Aurum 10X
- Aurum 12X
- Aurum 15X
Show all 38 synonymsShow fewer synonyms
- Aurum 20
- Aurum 20X
- Aurum 21X
- Aurum 30
- Aurum 30X
- Aurum Metallicum 30X
- Aurum 6 Special Order
- Aurum metallicum 200C
- Aurum 21X Special Order
- Bestmade Natural Products Aurum Met
- Aurum 5X Lavender 0.3 Rose 0.3
- SuperLighteningBasedonGold24kandKojicAcidSOAP
- Ginseng Gold Polypeptide Antiwrinkle Anti wrinkle essence
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Appearance | Soft, yellow metalexp.Measured value |
|---|---|
| Odour | No odorexp.Measured value |
| Melting point | 1,065 °Cexp.Measured value |
| Boiling point | 2,700 °Cexp.Measured value |
| Density | 19.3exp.Measured value |
| Solubility | INSOL IN WATER, ACID, SOL IN POTASSIUM CYANIDE, HOT SULFURIC ACIDexp.Measured value |
| Vapour pressure | VP: 1 Pa @ 1373 °C, 10 Pa @ 1541 °C, 100 Pa at 1748 °C, 1 kPa @ 2008 °C, 10 kPa @ 2347 °C, 100 kPa @ 2805 °Cexp.Measured value |
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 196.97 g/molcalc.Computed value |
|---|---|
| Exact mass | 196.9666 Dacalc.Computed value |
| LogP (octanol/water) | 0calc.Computed value |
| Topological polar surface area | 0 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 0calc.Computed value |
| Rotatable bonds | 0calc.Computed value |
| Heavy atoms | 1calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Full safety data and first aidGold suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- China, NeijiangUnclaimed profileGoldGrade, purity and minimum order on requestPrice on request
- Price on request
- India, KurukshetraUnclaimed profileGoldGrade, purity and minimum order on requestPrice on request
- Price on request
- Price on request
- China, Huzhou ManufacturerUnclaimed profileColloidal GoldGrade, purity and minimum order on requestPrice on request
- United States, Wichita ManufacturerUnclaimed profileGoldGrade, purity and minimum order on requestPrice on request
- United States, Wayne ManufacturerUnclaimed profileGoldGrade, purity and minimum order on requestPrice on request
- Price on request
Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.
Where suppliers are based
47 suppliers in 8 countries
- United States19
- China14
- Germany4
- Spain3
- India3
- United Kingdom2
- and 2 more countries
Send one request to many suppliers
Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.
Gold price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
In manufacture of jewelry, in gold plating other metals, as a standard of currency, most frequently alloyed with silver and copper.
Used in alloy with platinum, in photography.
Infrared reflectors, electrical contact alloys, brazing alloys, polarographic electrodes, Spinnerets, laboratory ware, in electronics, colloidal dispersions used in coloring glass, as Nucleating agent, and for specialized medical treatments, gold leaf is used in surgery.
Component of jewelry and art products, alloying agent with other metals, plating agent in electron tubes and other metals, component of electrical contacts and fabricated bars for investment.
Industrial uses: Other, Intermediate.
Consumer uses: Intermediate.
Use classes: Food additives, Cosmetics.
Industries and functions
Cosmetic ingredient, INCI name CI 77480(colorant)
Functional uses
- Biocide
- Dye
- Plating agent
- Softener and conditioner
Cosmetic functions
- Antimicrobial
- Colorant
- Skin conditioning - miscellaneous
- Slip modifier
- Surface modifier
Pharmacology
Gold is a Standardized Chemical Allergen. The physiologic effect of gold is by means of Increased Histamine Release and Cell-mediated Immunity.
How it is made
Ore is treated with cyanide solution, dissolved gold cyanate is recovered by precipitation with zinc dust, aluminum, or by hydrolysis. Placer methods are also used.
In internal amalgamation, gold is separated inside crushing apparatus at same time ore is crushed. Amalgam removed from apparatus is washed free of any admixtures with water in special bowls. ...remaining mercury is pressed out of amalgam.
Crushing of ore and extraction (mechanical, amalgamation, or cyanidation) followed by electrolytic refining or chemical refining (use of chlorine or treatment with either hot nitric or sulfuric acid
Regulatory status
Inventories, regulations and trade controls that list this substance
Health and food
- EU cosmetic ingredient inventory
- EU Cosmetics Regulation Annex II, prohibited in cosmeticsName: Gold (nano) [INCI], Colloidal Gold (nano) [INCI] [1] Gold Thioethylamino Hyaluronic Acid (nano) [INCI] [2] Acetyl heptapeptide-9 Colloidal gold (nano) [I…
- EU Cosmetics Regulation Annex IV, allowed colourantName: CI 77480, Ref no: 133, Annex ref: IV/133
- Active ingredient in FDA approved drug labels
- Food additive
United States
- TSCA inventory (USA)Status: Active in US commerce
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Gold is traded under.
Non-monetary, other unwrought forms
Our trade statistics cover HS chapters 25 to 40 (minerals, chemicals, plastics and rubber). This code is in chapter 71, natural, cultured pearls, which is not included yet.
The HS code shown for Gold is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Similar structures
Nearest neighbours by Morgan fingerprint Tanimoto similarity
Frequently asked questions
Quick answers about Gold, based on the data on this page
What is Gold?
What is the CAS number of Gold?
What is the molecular formula and weight of Gold?
What is Gold used for?
Is Gold hazardous?
What is the HS code of Gold?
Where can I buy Gold?
Where can I buy Gold in India?
What is the price of Gold?
Guides for buyers
Practical guides that help when you source, ship or handle Gold
- Article, QualityPharma grades explained: IP vs BP vs USP vs EPWhat the Indian, British, US and European pharmacopoeias are, how their monographs differ, what multi grade claims mean and why a grade alone does not make a product fit for medicines.Read
- Article, SourcingHow to write an RFQ that gets fast and accurate quotesWhat suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
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