Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Pyrophosphoric Acid
Price: ￥148.0/500g
Purity: 90.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Pyrophosphoric acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Pyrophosphoric acid-
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

2466-09-3

2466-09-3 structure

2466-09-3 structure

Name: Pyrophosphoric Acid
Chemical Name: diphosphoric acid
CAS Number: 2466-09-3
Molecular Formula: H₄O₇P₂
Molecular Weight: 177.975
Catalog: Inorganic chemical industry Inorganic acid
Create Date: 2018-07-02 12:48:41
Modify Date: 2025-08-20 15:19:23

Name	diphosphoric acid
Synonyms	Pyrophosphoric Acid acide diphosphorique Diphosphoric acid UNII-4E862E7GRQ Pyrophosphic acid EINECS 219-574-0 MFCD00011343 Diphosphorsaeure hydrogen pyrophosphate phosphono dihydrogen phosphate PPV Pyrophosphorsaeure phosphoric anhydride

Density	2.4±0.1 g/cm3
Melting Point	61 °C
Molecular Formula	H₄O₇P₂
Molecular Weight	177.975
Exact Mass	177.943222
PSA	143.91000
LogP	-3.42
Index of Refraction	1.560

CHEMICAL IDENTIFICATION

RTECS NUMBER :: JL6672500

CHEMICAL NAME :: Diphosphoric acid

CAS REGISTRY NUMBER :: 2466-09-3

LAST UPDATED :: 199512

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: H4-O7-P2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1170 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - excitement Gastrointestinal - necrotic changes

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(12),53,1985

Hazard Codes	C:Corrosive;
Risk Phrases	R34
Safety Phrases	S26-S36/37/39-S45
RIDADR	UN 3260 8/PG 2
WGK Germany	3
RTECS	JL6672500
Packaging Group	III
Hazard Class	8
HS Code	2809201900

HS Code	2809201900

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